Reorder imports

546 files changed, 1964 insertions, 1532 deletions

diff --git a/components/allocator/lib.rs b/components/allocator/lib.rs
index 97b7ac20531..963ff5f759b 100644
--- a/components/allocator/lib.rs
+++ b/components/allocator/lib.rs
@@ -23,7 +23,7 @@ mod platform {
 
     /// Memory allocation APIs compatible with libc
     pub mod libc_compat {
-        pub use super::ffi::{malloc, realloc, free};
+        pub use super::ffi::{free, malloc, realloc};
     }
 
     pub struct Allocator;
@@ -98,8 +98,8 @@ mod platform {
 mod platform {
     extern crate kernel32;
 
-    pub use std::alloc::System as Allocator;
     use self::kernel32::{GetProcessHeap, HeapSize, HeapValidate};
+    pub use std::alloc::System as Allocator;
     use std::os::raw::c_void;
 
     /// Get the size of a heap block.
diff --git a/components/atoms/build.rs b/components/atoms/build.rs
index 309e111dbd7..245440b06e5 100644
--- a/components/atoms/build.rs
+++ b/components/atoms/build.rs
@@ -6,7 +6,7 @@ extern crate string_cache_codegen;
 
 use std::env;
 use std::fs::File;
-use std::io::{BufReader, BufRead};
+use std::io::{BufRead, BufReader};
 use std::path::Path;
 
 fn main() {
diff --git a/components/bluetooth/lib.rs b/components/bluetooth/lib.rs
index 79525820a37..8d9f7bd0af5 100644
--- a/components/bluetooth/lib.rs
+++ b/components/bluetooth/lib.rs
@@ -16,11 +16,13 @@ extern crate uuid;
 
 pub mod test;
 
+use bluetooth_traits::blocklist::{uuid_is_blocklisted, Blocklist};
+use bluetooth_traits::scanfilter::{
+    BluetoothScanfilter, BluetoothScanfilterSequence, RequestDeviceoptions,
+};
 use bluetooth_traits::{BluetoothCharacteristicMsg, BluetoothDescriptorMsg, BluetoothServiceMsg};
 use bluetooth_traits::{BluetoothDeviceMsg, BluetoothRequest, BluetoothResponse, GATTType};
 use bluetooth_traits::{BluetoothError, BluetoothResponseResult, BluetoothResult};
-use bluetooth_traits::blocklist::{uuid_is_blocklisted, Blocklist};
-use bluetooth_traits::scanfilter::{BluetoothScanfilter, BluetoothScanfilterSequence, RequestDeviceoptions};
 use device::bluetooth::{BluetoothAdapter, BluetoothDevice, BluetoothGATTCharacteristic};
 use device::bluetooth::{BluetoothGATTDescriptor, BluetoothGATTService};
 use embedder_traits::{EmbedderMsg, EmbedderProxy};
diff --git a/components/bluetooth/test.rs b/components/bluetooth/test.rs
index e0eacc2d8e5..6138bbdb35e 100644
--- a/components/bluetooth/test.rs
+++ b/components/bluetooth/test.rs
@@ -4,10 +4,12 @@
 
 use crate::BluetoothManager;
 use device::bluetooth::{BluetoothAdapter, BluetoothDevice};
-use device::bluetooth::{BluetoothGATTCharacteristic, BluetoothGATTDescriptor, BluetoothGATTService};
+use device::bluetooth::{
+    BluetoothGATTCharacteristic, BluetoothGATTDescriptor, BluetoothGATTService,
+};
 use std::borrow::ToOwned;
 use std::cell::RefCell;
-use std::collections::{HashSet, HashMap};
+use std::collections::{HashMap, HashSet};
 use std::error::Error;
 use std::string::String;
 use uuid::Uuid;
diff --git a/components/canvas/canvas_data.rs b/components/canvas/canvas_data.rs
index 31da765f59f..97e2dee4800 100644
--- a/components/canvas/canvas_data.rs
+++ b/components/canvas/canvas_data.rs
@@ -3,14 +3,16 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use azure::azure::AzFloat;
+use azure::azure_hl::SurfacePattern;
 use azure::azure_hl::{AntialiasMode, CapStyle, CompositionOp, JoinStyle};
-use azure::azure_hl::{BackendType, DrawOptions, DrawTarget, Pattern, StrokeOptions, SurfaceFormat};
+use azure::azure_hl::{
+    BackendType, DrawOptions, DrawTarget, Pattern, StrokeOptions, SurfaceFormat,
+};
 use azure::azure_hl::{Color, ColorPattern, DrawSurfaceOptions, Filter, PathBuilder};
 use azure::azure_hl::{ExtendMode, GradientStop, LinearGradientPattern, RadialGradientPattern};
-use azure::azure_hl::SurfacePattern;
 use canvas_traits::canvas::*;
 use cssparser::RGBA;
-use euclid::{Transform2D, Point2D, Vector2D, Rect, Size2D};
+use euclid::{Point2D, Rect, Size2D, Transform2D, Vector2D};
 use ipc_channel::ipc::IpcSender;
 use num_traits::ToPrimitive;
 use pixels;
diff --git a/components/canvas/gl_context.rs b/components/canvas/gl_context.rs
index 916f381a286..077ea3b7f9f 100644
--- a/components/canvas/gl_context.rs
+++ b/components/canvas/gl_context.rs
@@ -2,16 +2,18 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use canvas_traits::webgl::{WebGLCommand, WebGLVersion, WebGLCommandBacktrace};
-use compositing::compositor_thread::{CompositorProxy, self};
+use super::webgl_thread::{GLState, WebGLImpl};
+use canvas_traits::webgl::{WebGLCommand, WebGLCommandBacktrace, WebGLVersion};
+use compositing::compositor_thread::{self, CompositorProxy};
 use euclid::Size2D;
 use gleam::gl;
-use offscreen_gl_context::{ColorAttachmentType, GLContext, GLContextAttributes, GLContextDispatcher};
+use offscreen_gl_context::{
+    ColorAttachmentType, GLContext, GLContextAttributes, GLContextDispatcher,
+};
 use offscreen_gl_context::{GLLimits, GLVersion};
 use offscreen_gl_context::{NativeGLContext, NativeGLContextHandle, NativeGLContextMethods};
 use offscreen_gl_context::{OSMesaContext, OSMesaContextHandle};
 use std::sync::{Arc, Mutex};
-use super::webgl_thread::{WebGLImpl, GLState};
 
 /// The GLContextFactory is used to create shared GL contexts with the main thread GL context.
 /// Currently, shared textures are used to render WebGL textures into the WR compositor.
diff --git a/components/canvas/webgl_mode/inprocess.rs b/components/canvas/webgl_mode/inprocess.rs
index c7b1756aa32..1f7ade4eb56 100644
--- a/components/canvas/webgl_mode/inprocess.rs
+++ b/components/canvas/webgl_mode/inprocess.rs
@@ -2,10 +2,10 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use canvas_traits::webgl::webgl_channel;
+use canvas_traits::webgl::DOMToTextureCommand;
 use canvas_traits::webgl::{WebGLChan, WebGLContextId, WebGLMsg, WebGLPipeline, WebGLReceiver};
 use canvas_traits::webgl::{WebGLSender, WebVRCommand, WebVRRenderHandler};
-use canvas_traits::webgl::DOMToTextureCommand;
-use canvas_traits::webgl::webgl_channel;
 use crate::gl_context::GLContextFactory;
 use crate::webgl_thread::{WebGLExternalImageApi, WebGLExternalImageHandler, WebGLThread};
 use euclid::Size2D;
diff --git a/components/canvas/webgl_thread.rs b/components/canvas/webgl_thread.rs
index d6d6e98f28e..e47bfffdbcc 100644
--- a/components/canvas/webgl_thread.rs
+++ b/components/canvas/webgl_thread.rs
@@ -2,6 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use super::gl_context::{GLContextFactory, GLContextWrapper};
 use canvas_traits::webgl::*;
 use euclid::Size2D;
 use fnv::FnvHashMap;
@@ -9,7 +10,6 @@ use gleam::gl;
 use offscreen_gl_context::{GLContext, GLContextAttributes, GLLimits, NativeGLContextMethods};
 use pixels;
 use std::thread;
-use super::gl_context::{GLContextFactory, GLContextWrapper};
 use webrender;
 use webrender_api;
 
diff --git a/components/canvas_traits/canvas.rs b/components/canvas_traits/canvas.rs
index 4acdde707b3..3c28943a830 100644
--- a/components/canvas_traits/canvas.rs
+++ b/components/canvas_traits/canvas.rs
@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use cssparser::RGBA;
-use euclid::{Transform2D, Point2D, Rect, Size2D};
+use euclid::{Point2D, Rect, Size2D, Transform2D};
 use ipc_channel::ipc::{IpcBytesReceiver, IpcBytesSender, IpcSender};
 use serde_bytes::ByteBuf;
 use std::default::Default;
diff --git a/components/canvas_traits/webgl.rs b/components/canvas_traits/webgl.rs
index ac9bbb40315..dce9c441e1c 100644
--- a/components/canvas_traits/webgl.rs
+++ b/components/canvas_traits/webgl.rs
@@ -11,18 +11,18 @@ use std::borrow::Cow;
 use std::num::NonZeroU32;
 use webrender_api::{DocumentId, ImageKey, PipelineId};
 
-/// Sender type used in WebGLCommands.
-pub use crate::webgl_channel::WebGLSender;
-/// Receiver type used in WebGLCommands.
-pub use crate::webgl_channel::WebGLReceiver;
-/// Result type for send()/recv() calls in in WebGLCommands.
-pub use crate::webgl_channel::WebGLSendResult;
 /// Helper function that creates a WebGL channel (WebGLSender, WebGLReceiver) to be used in WebGLCommands.
 pub use crate::webgl_channel::webgl_channel;
-/// Entry point type used in a Script Pipeline to get the WebGLChan to be used in that thread.
-pub use crate::webgl_channel::WebGLPipeline;
 /// Entry point channel type used for sending WebGLMsg messages to the WebGL renderer.
 pub use crate::webgl_channel::WebGLChan;
+/// Entry point type used in a Script Pipeline to get the WebGLChan to be used in that thread.
+pub use crate::webgl_channel::WebGLPipeline;
+/// Receiver type used in WebGLCommands.
+pub use crate::webgl_channel::WebGLReceiver;
+/// Result type for send()/recv() calls in in WebGLCommands.
+pub use crate::webgl_channel::WebGLSendResult;
+/// Sender type used in WebGLCommands.
+pub use crate::webgl_channel::WebGLSender;
 
 #[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct WebGLCommandBacktrace {
diff --git a/components/channel/lib.rs b/components/channel/lib.rs
index df1c49a64c8..fd8dc7e5824 100644
--- a/components/channel/lib.rs
+++ b/components/channel/lib.rs
@@ -15,8 +15,8 @@ pub use crossbeam_channel::*;
 use ipc_channel::ipc::IpcReceiver;
 use ipc_channel::router::ROUTER;
 use serde::{Deserialize, Serialize};
-use std::sync::Arc;
 use std::sync::atomic::{AtomicBool, Ordering};
+use std::sync::Arc;
 
 pub fn route_ipc_receiver_to_new_servo_receiver<T>(ipc_receiver: IpcReceiver<T>) -> Receiver<T>
 where
diff --git a/components/compositing/compositor.rs b/components/compositing/compositor.rs
index c58fa02cd50..c3974c7fd01 100644
--- a/components/compositing/compositor.rs
+++ b/components/compositing/compositor.rs
@@ -2,15 +2,17 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::CompositionPipeline;
-use crate::SendableFrameTree;
 use crate::compositor_thread::{CompositorProxy, CompositorReceiver};
 use crate::compositor_thread::{InitialCompositorState, Msg};
 #[cfg(feature = "gleam")]
 use crate::gl;
-use crate::touch::{TouchHandler, TouchAction};
-use crate::windowing::{self, EmbedderCoordinates, MouseWindowEvent, WebRenderDebugOption, WindowMethods};
-use euclid::{TypedPoint2D, TypedVector2D, TypedScale};
+use crate::touch::{TouchAction, TouchHandler};
+use crate::windowing::{
+    self, EmbedderCoordinates, MouseWindowEvent, WebRenderDebugOption, WindowMethods,
+};
+use crate::CompositionPipeline;
+use crate::SendableFrameTree;
+use euclid::{TypedPoint2D, TypedScale, TypedVector2D};
 use gfx_traits::Epoch;
 #[cfg(feature = "gleam")]
 use image::{DynamicImage, ImageFormat};
@@ -20,23 +22,23 @@ use msg::constellation_msg::{PipelineId, PipelineIndex, PipelineNamespaceId};
 use net_traits::image::base::Image;
 #[cfg(feature = "gleam")]
 use net_traits::image::base::PixelFormat;
-use profile_traits::time::{self as profile_time, ProfilerCategory, profile};
+use profile_traits::time::{self as profile_time, profile, ProfilerCategory};
+use script_traits::CompositorEvent::{MouseButtonEvent, MouseMoveEvent, TouchEvent};
 use script_traits::{AnimationState, AnimationTickType, ConstellationMsg, LayoutControlMsg};
 use script_traits::{MouseButton, MouseEventType, ScrollState, TouchEventType, TouchId};
 use script_traits::{UntrustedNodeAddress, WindowSizeData, WindowSizeType};
-use script_traits::CompositorEvent::{MouseMoveEvent, MouseButtonEvent, TouchEvent};
 use servo_channel::Sender;
 use servo_config::opts;
 use servo_geometry::DeviceIndependentPixel;
 use std::collections::HashMap;
 use std::env;
-use std::fs::{File, create_dir_all};
+use std::fs::{create_dir_all, File};
 use std::io::Write;
 use std::num::NonZeroU32;
 use std::rc::Rc;
-use style_traits::{CSSPixel, DevicePixel, PinchZoomFactor};
 use style_traits::cursor::CursorKind;
 use style_traits::viewport::ViewportConstraints;
+use style_traits::{CSSPixel, DevicePixel, PinchZoomFactor};
 use time::{now, precise_time_ns, precise_time_s};
 use webrender;
 use webrender_api::{self, DeviceIntPoint, DevicePoint, HitTestFlags, HitTestResult};
diff --git a/components/compositing/compositor_thread.rs b/components/compositing/compositor_thread.rs
index 3203c7aa290..a897f141fed 100644
--- a/components/compositing/compositor_thread.rs
+++ b/components/compositing/compositor_thread.rs
@@ -4,8 +4,8 @@
 
 //! Communication with the compositor thread.
 
-use crate::SendableFrameTree;
 use crate::compositor::CompositingReason;
+use crate::SendableFrameTree;
 use embedder_traits::EventLoopWaker;
 use gfx_traits::Epoch;
 use ipc_channel::ipc::IpcSender;
diff --git a/components/compositing/lib.rs b/components/compositing/lib.rs
index 8b9e30c0d46..c631f39275e 100644
--- a/components/compositing/lib.rs
+++ b/components/compositing/lib.rs
@@ -29,10 +29,10 @@ extern crate time;
 extern crate webrender;
 extern crate webrender_api;
 
-pub use crate::compositor_thread::CompositorProxy;
 pub use crate::compositor::IOCompositor;
 pub use crate::compositor::RenderNotifier;
 pub use crate::compositor::ShutdownState;
+pub use crate::compositor_thread::CompositorProxy;
 use euclid::TypedSize2D;
 use ipc_channel::ipc::IpcSender;
 use msg::constellation_msg::PipelineId;
diff --git a/components/compositing/touch.rs b/components/compositing/touch.rs
index 28a2588a91f..227758ddd11 100644
--- a/components/compositing/touch.rs
+++ b/components/compositing/touch.rs
@@ -2,10 +2,10 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use euclid::{TypedPoint2D, TypedVector2D};
+use self::TouchState::*;
 use euclid::TypedScale;
+use euclid::{TypedPoint2D, TypedVector2D};
 use script_traits::{EventResult, TouchId};
-use self::TouchState::*;
 use style_traits::DevicePixel;
 
 /// Minimum number of `DeviceIndependentPixel` to begin touch scrolling.
diff --git a/components/compositing/windowing.rs b/components/compositing/windowing.rs
index 45351780133..9ff7e919746 100644
--- a/components/compositing/windowing.rs
+++ b/components/compositing/windowing.rs
@@ -17,7 +17,7 @@ use std::fmt::{Debug, Error, Formatter};
 #[cfg(feature = "gleam")]
 use std::rc::Rc;
 use style_traits::DevicePixel;
-use webrender_api::{DeviceIntPoint, DevicePoint, DeviceUintSize, DeviceUintRect, ScrollLocation};
+use webrender_api::{DeviceIntPoint, DevicePoint, DeviceUintRect, DeviceUintSize, ScrollLocation};
 
 #[derive(Clone)]
 pub enum MouseWindowEvent {
diff --git a/components/config/opts.rs b/components/config/opts.rs
index 47112e15bee..96b38a56835 100644
--- a/components/config/opts.rs
+++ b/components/config/opts.rs
@@ -19,7 +19,7 @@ use std::fs::{self, File};
 use std::io::{self, Read, Write};
 use std::path::{Path, PathBuf};
 use std::process;
-use std::sync::atomic::{AtomicBool, ATOMIC_BOOL_INIT, Ordering};
+use std::sync::atomic::{AtomicBool, Ordering, ATOMIC_BOOL_INIT};
 use url::{self, Url};
 
 /// Global flags for Servo, currently set on the command line.
diff --git a/components/config/prefs.rs b/components/config/prefs.rs
index 9a97bbdca04..5b47a1a51a7 100644
--- a/components/config/prefs.rs
+++ b/components/config/prefs.rs
@@ -11,7 +11,7 @@ use std::borrow::ToOwned;
 use std::cmp::max;
 use std::collections::HashMap;
 use std::fs::File;
-use std::io::{Read, Write, stderr};
+use std::io::{stderr, Read, Write};
 use std::path::PathBuf;
 use std::sync::{Arc, RwLock};
 
diff --git a/components/config/tests/opts.rs b/components/config/tests/opts.rs
index e2db853a991..3e427074823 100644
--- a/components/config/tests/opts.rs
+++ b/components/config/tests/opts.rs
@@ -4,7 +4,7 @@
 
 extern crate servo_config;
 
-use servo_config::opts::{parse_url_or_filename, parse_pref_from_command_line};
+use servo_config::opts::{parse_pref_from_command_line, parse_url_or_filename};
 use servo_config::prefs::{PrefValue, PREFS};
 use std::path::Path;
 
diff --git a/components/config/tests/prefs.rs b/components/config/tests/prefs.rs
index 823b03b76c2..ee3916b7f5a 100644
--- a/components/config/tests/prefs.rs
+++ b/components/config/tests/prefs.rs
@@ -5,7 +5,7 @@
 extern crate servo_config;
 
 use servo_config::basedir;
-use servo_config::prefs::{PREFS, PrefValue, read_prefs};
+use servo_config::prefs::{read_prefs, PrefValue, PREFS};
 use std::fs::{self, File};
 use std::io::{Read, Write};
 
diff --git a/components/constellation/constellation.rs b/components/constellation/constellation.rs
index 4aef61c6cca..668aa0aae27 100644
--- a/components/constellation/constellation.rs
+++ b/components/constellation/constellation.rs
@@ -96,49 +96,61 @@ use canvas::webgl_thread::WebGLThreads;
 use canvas_traits::canvas::CanvasId;
 use canvas_traits::canvas::CanvasMsg;
 use clipboard::{ClipboardContext, ClipboardProvider};
-use compositing::SendableFrameTree;
 use compositing::compositor_thread::CompositorProxy;
 use compositing::compositor_thread::Msg as ToCompositorMsg;
-use crate::browsingcontext::{AllBrowsingContextsIterator, BrowsingContext, FullyActiveBrowsingContextsIterator};
+use compositing::SendableFrameTree;
 use crate::browsingcontext::NewBrowsingContextInfo;
+use crate::browsingcontext::{
+    AllBrowsingContextsIterator, BrowsingContext, FullyActiveBrowsingContextsIterator,
+};
 use crate::event_loop::EventLoop;
 use crate::network_listener::NetworkListener;
 use crate::pipeline::{InitialPipelineState, Pipeline};
-use crate::session_history::{JointSessionHistory, NeedsToReload, SessionHistoryChange, SessionHistoryDiff};
+use crate::session_history::{
+    JointSessionHistory, NeedsToReload, SessionHistoryChange, SessionHistoryDiff,
+};
 use crate::timer_scheduler::TimerScheduler;
 use debugger;
 use devtools_traits::{ChromeToDevtoolsControlMsg, DevtoolsControlMsg};
 use embedder_traits::{EmbedderMsg, EmbedderProxy};
-use euclid::{Size2D, TypedSize2D, TypedScale};
+use euclid::{Size2D, TypedScale, TypedSize2D};
 use gfx::font_cache_thread::FontCacheThread;
 use gfx_traits::Epoch;
-use ipc_channel::{Error as IpcError};
-use ipc_channel::ipc::{self, IpcSender, IpcReceiver};
+use ipc_channel::ipc::{self, IpcReceiver, IpcSender};
 use ipc_channel::router::ROUTER;
+use ipc_channel::Error as IpcError;
 use keyboard_types::KeyboardEvent;
 use layout_traits::LayoutThreadFactory;
-use log::{Log, Level, LevelFilter, Metadata, Record};
-use msg::constellation_msg::{BrowsingContextId, PipelineId, HistoryStateId, TopLevelBrowsingContextId};
+use log::{Level, LevelFilter, Log, Metadata, Record};
+use msg::constellation_msg::{
+    BrowsingContextId, HistoryStateId, PipelineId, TopLevelBrowsingContextId,
+};
 use msg::constellation_msg::{PipelineNamespace, PipelineNamespaceId, TraversalDirection};
-use net_traits::{self, IpcSend, FetchResponseMsg, ResourceThreads};
 use net_traits::pub_domains::reg_host;
 use net_traits::request::RequestInit;
 use net_traits::storage_thread::{StorageThreadMsg, StorageType};
+use net_traits::{self, FetchResponseMsg, IpcSend, ResourceThreads};
 use profile_traits::mem;
 use profile_traits::time;
-use script_traits::{AnimationState, AuxiliaryBrowsingContextLoadInfo, AnimationTickType, CompositorEvent};
-use script_traits::{ConstellationControlMsg, ConstellationMsg as FromCompositorMsg, DiscardBrowsingContext};
+use script_traits::{webdriver_msg, LogEntry, ScriptToConstellationChan, ServiceWorkerMsg};
+use script_traits::{
+    AnimationState, AnimationTickType, AuxiliaryBrowsingContextLoadInfo, CompositorEvent,
+};
+use script_traits::{
+    ConstellationControlMsg, ConstellationMsg as FromCompositorMsg, DiscardBrowsingContext,
+};
 use script_traits::{DocumentActivity, DocumentState, LayoutControlMsg, LoadData};
-use script_traits::{IFrameLoadInfo, IFrameLoadInfoWithData, IFrameSandboxState, TimerSchedulerMsg};
+use script_traits::{
+    IFrameLoadInfo, IFrameLoadInfoWithData, IFrameSandboxState, TimerSchedulerMsg,
+};
 use script_traits::{LayoutMsg as FromLayoutMsg, ScriptMsg as FromScriptMsg, ScriptThreadFactory};
-use script_traits::{LogEntry, ScriptToConstellationChan, ServiceWorkerMsg, webdriver_msg};
 use script_traits::{SWManagerMsg, ScopeThings, UpdatePipelineIdReason, WebDriverCommandMsg};
 use script_traits::{WindowSizeData, WindowSizeType};
 use serde::{Deserialize, Serialize};
-use servo_channel::{Receiver, Sender, channel};
+use servo_channel::{channel, Receiver, Sender};
 use servo_config::opts;
 use servo_config::prefs::PREFS;
-use servo_rand::{Rng, SeedableRng, ServoRng, random};
+use servo_rand::{random, Rng, SeedableRng, ServoRng};
 use servo_remutex::ReentrantMutex;
 use servo_url::{Host, ImmutableOrigin, ServoUrl};
 use std::borrow::ToOwned;
@@ -149,9 +161,9 @@ use std::process;
 use std::rc::{Rc, Weak};
 use std::sync::Arc;
 use std::thread;
-use style_traits::CSSPixel;
 use style_traits::cursor::CursorKind;
 use style_traits::viewport::ViewportConstraints;
+use style_traits::CSSPixel;
 use webrender_api;
 use webvr_traits::{WebVREvent, WebVRMsg};
 
diff --git a/components/constellation/event_loop.rs b/components/constellation/event_loop.rs
index 7506e029570..ac8c06c2997 100644
--- a/components/constellation/event_loop.rs
+++ b/components/constellation/event_loop.rs
@@ -6,8 +6,8 @@
 //! view of a script thread. When an `EventLoop` is dropped, an `ExitScriptThread`
 //! message is sent to the script thread, asking it to shut down.
 
-use ipc_channel::Error;
 use ipc_channel::ipc::IpcSender;
+use ipc_channel::Error;
 use script_traits::ConstellationControlMsg;
 use std::marker::PhantomData;
 use std::rc::Rc;
diff --git a/components/constellation/lib.rs b/components/constellation/lib.rs
index c2446ebca4c..54235a9b09c 100644
--- a/components/constellation/lib.rs
+++ b/components/constellation/lib.rs
@@ -53,7 +53,9 @@ mod sandboxing;
 mod session_history;
 mod timer_scheduler;
 
-pub use crate::constellation::{Constellation, FromCompositorLogger, FromScriptLogger, InitialConstellationState};
+pub use crate::constellation::{
+    Constellation, FromCompositorLogger, FromScriptLogger, InitialConstellationState,
+};
 pub use crate::pipeline::UnprivilegedPipelineContent;
 #[cfg(all(not(target_os = "windows"), not(target_os = "ios")))]
 pub use crate::sandboxing::content_process_sandbox_profile;
diff --git a/components/constellation/network_listener.rs b/components/constellation/network_listener.rs
index 71a8e66cb62..a417f5cdeeb 100644
--- a/components/constellation/network_listener.rs
+++ b/components/constellation/network_listener.rs
@@ -11,10 +11,10 @@ use ipc_channel::ipc;
 use ipc_channel::router::ROUTER;
 use msg::constellation_msg::PipelineId;
 use net::http_loader::{set_default_accept, set_default_accept_language};
-use net_traits::{CoreResourceMsg, FetchChannels, FetchMetadata, FetchResponseMsg};
-use net_traits::{IpcSend, NetworkError, ResourceThreads};
 use net_traits::request::{Destination, RequestInit};
 use net_traits::response::ResponseInit;
+use net_traits::{CoreResourceMsg, FetchChannels, FetchMetadata, FetchResponseMsg};
+use net_traits::{IpcSend, NetworkError, ResourceThreads};
 use servo_channel::Sender;
 
 pub struct NetworkListener {
diff --git a/components/constellation/pipeline.rs b/components/constellation/pipeline.rs
index 118403451d6..881e290164a 100644
--- a/components/constellation/pipeline.rs
+++ b/components/constellation/pipeline.rs
@@ -4,23 +4,23 @@
 
 use bluetooth_traits::BluetoothRequest;
 use canvas_traits::webgl::WebGLPipeline;
+use compositing::compositor_thread::Msg as CompositorMsg;
 use compositing::CompositionPipeline;
 use compositing::CompositorProxy;
-use compositing::compositor_thread::Msg as CompositorMsg;
 use crate::event_loop::EventLoop;
 use devtools_traits::{DevtoolsControlMsg, ScriptToDevtoolsControlMsg};
-use euclid::{TypedSize2D, TypedScale};
+use euclid::{TypedScale, TypedSize2D};
 use gfx::font_cache_thread::FontCacheThread;
-use ipc_channel::Error;
 use ipc_channel::ipc::{self, IpcReceiver, IpcSender};
 use ipc_channel::router::ROUTER;
+use ipc_channel::Error;
 use layout_traits::LayoutThreadFactory;
 use metrics::PaintTimeMetrics;
-use msg::constellation_msg::{BrowsingContextId, HistoryStateId, PipelineId, PipelineNamespaceId};
 use msg::constellation_msg::TopLevelBrowsingContextId;
+use msg::constellation_msg::{BrowsingContextId, HistoryStateId, PipelineId, PipelineNamespaceId};
 use net::image_cache::ImageCacheImpl;
-use net_traits::{IpcSend, ResourceThreads};
 use net_traits::image_cache::ImageCache;
+use net_traits::{IpcSend, ResourceThreads};
 use profile_traits::mem as profile_mem;
 use profile_traits::time;
 use script_traits::{ConstellationControlMsg, DiscardBrowsingContext, ScriptToConstellationChan};
@@ -30,7 +30,7 @@ use script_traits::{NewLayoutInfo, SWManagerMsg, SWManagerSenders};
 use script_traits::{ScriptThreadFactory, TimerSchedulerMsg, WindowSizeData};
 use servo_channel::Sender;
 use servo_config::opts::{self, Opts};
-use servo_config::prefs::{PREFS, Pref};
+use servo_config::prefs::{Pref, PREFS};
 use servo_url::ServoUrl;
 use std::collections::{HashMap, HashSet};
 #[cfg(not(windows))]
diff --git a/components/constellation/session_history.rs b/components/constellation/session_history.rs
index 996fe59fc85..ae467432bf8 100644
--- a/components/constellation/session_history.rs
+++ b/components/constellation/session_history.rs
@@ -3,11 +3,13 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use crate::browsingcontext::NewBrowsingContextInfo;
-use msg::constellation_msg::{BrowsingContextId, HistoryStateId, PipelineId, TopLevelBrowsingContextId};
+use msg::constellation_msg::{
+    BrowsingContextId, HistoryStateId, PipelineId, TopLevelBrowsingContextId,
+};
 use script_traits::LoadData;
 use servo_url::ServoUrl;
-use std::{fmt, mem};
 use std::cmp::PartialEq;
+use std::{fmt, mem};
 
 /// Represents the joint session history
 /// https://html.spec.whatwg.org/multipage/#joint-session-history
diff --git a/components/devtools/actors/console.rs b/components/devtools/actors/console.rs
index 1c7230c95a1..f2841d86f27 100644
--- a/components/devtools/actors/console.rs
+++ b/components/devtools/actors/console.rs
@@ -10,10 +10,10 @@
 use crate::actor::{Actor, ActorMessageStatus, ActorRegistry};
 use crate::actors::object::ObjectActor;
 use crate::protocol::JsonPacketStream;
-use devtools_traits::{CachedConsoleMessageTypes, DevtoolScriptControlMsg};
 use devtools_traits::CachedConsoleMessage;
 use devtools_traits::EvaluateJSReply::{ActorValue, BooleanValue, StringValue};
 use devtools_traits::EvaluateJSReply::{NullValue, NumberValue, VoidValue};
+use devtools_traits::{CachedConsoleMessageTypes, DevtoolScriptControlMsg};
 use ipc_channel::ipc::{self, IpcSender};
 use msg::constellation_msg::PipelineId;
 use serde_json::{self, Map, Number, Value};
diff --git a/components/devtools/actors/device.rs b/components/devtools/actors/device.rs
index 27823db2ce5..93f87168d09 100644
--- a/components/devtools/actors/device.rs
+++ b/components/devtools/actors/device.rs
@@ -3,8 +3,8 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use crate::actor::{Actor, ActorMessageStatus, ActorRegistry};
-use crate::protocol::{ActorDescription,  Method};
 use crate::protocol::JsonPacketStream;
+use crate::protocol::{ActorDescription, Method};
 use serde_json::{Map, Value};
 use std::net::TcpStream;
 
diff --git a/components/devtools/actors/inspector.rs b/components/devtools/actors/inspector.rs
index a88651efd26..b18e2647f61 100644
--- a/components/devtools/actors/inspector.rs
+++ b/components/devtools/actors/inspector.rs
@@ -7,9 +7,9 @@
 
 use crate::actor::{Actor, ActorMessageStatus, ActorRegistry};
 use crate::protocol::JsonPacketStream;
-use devtools_traits::{ComputedNodeLayout, DevtoolScriptControlMsg, NodeInfo};
 use devtools_traits::DevtoolScriptControlMsg::{GetChildren, GetDocumentElement, GetRootNode};
 use devtools_traits::DevtoolScriptControlMsg::{GetLayout, ModifyAttribute};
+use devtools_traits::{ComputedNodeLayout, DevtoolScriptControlMsg, NodeInfo};
 use ipc_channel::ipc::{self, IpcSender};
 use msg::constellation_msg::PipelineId;
 use serde_json::{self, Map, Value};
diff --git a/components/devtools/actors/timeline.rs b/components/devtools/actors/timeline.rs
index d318321e27e..e1ad44d1ee5 100644
--- a/components/devtools/actors/timeline.rs
+++ b/components/devtools/actors/timeline.rs
@@ -6,9 +6,9 @@ use crate::actor::{Actor, ActorMessageStatus, ActorRegistry};
 use crate::actors::framerate::FramerateActor;
 use crate::actors::memory::{MemoryActor, TimelineMemoryReply};
 use crate::protocol::JsonPacketStream;
-use devtools_traits::{PreciseTime, TimelineMarker, TimelineMarkerType};
 use devtools_traits::DevtoolScriptControlMsg;
 use devtools_traits::DevtoolScriptControlMsg::{DropTimelineMarkers, SetTimelineMarkers};
+use devtools_traits::{PreciseTime, TimelineMarker, TimelineMarkerType};
 use ipc_channel::ipc::{self, IpcReceiver, IpcSender};
 use msg::constellation_msg::PipelineId;
 use serde::{Serialize, Serializer};
diff --git a/components/devtools/lib.rs b/components/devtools/lib.rs
index 07c9cc2d825..be40e70eec6 100644
--- a/components/devtools/lib.rs
+++ b/components/devtools/lib.rs
@@ -48,11 +48,11 @@ use devtools_traits::{DevtoolScriptControlMsg, DevtoolsPageInfo, LogLevel, Netwo
 use devtools_traits::{ScriptToDevtoolsControlMsg, WorkerId};
 use ipc_channel::ipc::IpcSender;
 use msg::constellation_msg::PipelineId;
-use servo_channel::{Receiver, Sender, channel};
+use servo_channel::{channel, Receiver, Sender};
 use std::borrow::ToOwned;
 use std::cell::RefCell;
-use std::collections::HashMap;
 use std::collections::hash_map::Entry::{Occupied, Vacant};
+use std::collections::HashMap;
 use std::net::{Shutdown, TcpListener, TcpStream};
 use std::sync::{Arc, Mutex};
 use std::thread;
diff --git a/components/devtools_traits/lib.rs b/components/devtools_traits/lib.rs
index 9d95adb3d26..dc0979f580c 100644
--- a/components/devtools_traits/lib.rs
+++ b/components/devtools_traits/lib.rs
@@ -24,8 +24,8 @@ extern crate serde;
 extern crate servo_url;
 extern crate time;
 
-use http::HeaderMap;
 use http::method::Method;
+use http::HeaderMap;
 use ipc_channel::ipc::IpcSender;
 use msg::constellation_msg::PipelineId;
 use servo_url::ServoUrl;
diff --git a/components/fallible/lib.rs b/components/fallible/lib.rs
index ae6a40dc789..f807bc9ce7a 100644
--- a/components/fallible/lib.rs
+++ b/components/fallible/lib.rs
@@ -5,9 +5,9 @@
 extern crate hashglobe;
 extern crate smallvec;
 
-use hashglobe::FailedAllocationError;
 #[cfg(feature = "known_system_malloc")]
 use hashglobe::alloc;
+use hashglobe::FailedAllocationError;
 use smallvec::Array;
 use smallvec::SmallVec;
 use std::vec::Vec;
diff --git a/components/gfx/font.rs b/components/gfx/font.rs
index 086f8a253f5..5971d0ed130 100644
--- a/components/gfx/font.rs
+++ b/components/gfx/font.rs
@@ -9,9 +9,9 @@ use crate::platform::font::{FontHandle, FontTable};
 use crate::platform::font_context::FontContextHandle;
 pub use crate::platform::font_list::fallback_font_families;
 use crate::platform::font_template::FontTemplateData;
-use crate::text::Shaper;
 use crate::text::glyph::{ByteIndex, GlyphData, GlyphId, GlyphStore};
 use crate::text::shaping::ShaperMethods;
+use crate::text::Shaper;
 use euclid::{Point2D, Rect, Size2D};
 use ordered_float::NotNan;
 use servo_atoms::Atom;
@@ -22,8 +22,8 @@ use std::collections::HashMap;
 use std::iter;
 use std::rc::Rc;
 use std::str;
+use std::sync::atomic::{AtomicUsize, Ordering, ATOMIC_USIZE_INIT};
 use std::sync::Arc;
-use std::sync::atomic::{ATOMIC_USIZE_INIT, AtomicUsize, Ordering};
 use style::computed_values::{font_stretch, font_style, font_variant_caps, font_weight};
 use style::properties::style_structs::Font as FontStyleStruct;
 use style::values::computed::font::SingleFontFamily;
diff --git a/components/gfx/font_cache_thread.rs b/components/gfx/font_cache_thread.rs
index 669544004bb..77a816db9b9 100644
--- a/components/gfx/font_cache_thread.rs
+++ b/components/gfx/font_cache_thread.rs
@@ -7,22 +7,22 @@ use crate::font::{FontFamilyDescriptor, FontFamilyName, FontSearchScope};
 use crate::font_context::FontSource;
 use crate::font_template::{FontTemplate, FontTemplateDescriptor};
 use crate::platform::font_context::FontContextHandle;
-use crate::platform::font_list::SANS_SERIF_FONT_FAMILY;
 use crate::platform::font_list::for_each_available_family;
 use crate::platform::font_list::for_each_variation;
 use crate::platform::font_list::system_default_family;
+use crate::platform::font_list::SANS_SERIF_FONT_FAMILY;
 use crate::platform::font_template::FontTemplateData;
 use fontsan;
 use ipc_channel::ipc::{self, IpcReceiver, IpcSender};
-use net_traits::{CoreResourceThread, FetchResponseMsg, fetch_async};
 use net_traits::request::{Destination, RequestInit};
+use net_traits::{fetch_async, CoreResourceThread, FetchResponseMsg};
 use servo_atoms::Atom;
 use servo_url::ServoUrl;
-use std::{fmt, f32, mem, thread};
 use std::borrow::ToOwned;
 use std::collections::HashMap;
 use std::ops::Deref;
 use std::sync::{Arc, Mutex};
+use std::{f32, fmt, mem, thread};
 use style::font_face::{EffectiveSources, Source};
 use style::values::computed::font::FamilyName;
 use webrender_api;
diff --git a/components/gfx/font_context.rs b/components/gfx/font_context.rs
index 655f165c38f..2fc8ee6a1f8 100644
--- a/components/gfx/font_context.rs
+++ b/components/gfx/font_context.rs
@@ -3,7 +3,9 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use app_units::Au;
-use crate::font::{Font, FontDescriptor, FontFamilyDescriptor, FontGroup, FontHandleMethods, FontRef};
+use crate::font::{
+    Font, FontDescriptor, FontFamilyDescriptor, FontGroup, FontHandleMethods, FontRef,
+};
 use crate::font_cache_thread::FontTemplateInfo;
 use crate::font_template::FontTemplateDescriptor;
 use crate::platform::font::FontHandle;
diff --git a/components/gfx/platform/freetype/android/font_list.rs b/components/gfx/platform/freetype/android/font_list.rs
index c156b630db0..d4b422ef111 100644
--- a/components/gfx/platform/freetype/android/font_list.rs
+++ b/components/gfx/platform/freetype/android/font_list.rs
@@ -8,11 +8,11 @@ use std::fs::File;
 use std::io::{self, Read};
 use std::path::Path;
 use ucd::{Codepoint, UnicodeBlock};
-use xml5ever::Attribute;
 use xml5ever::driver::parse_document;
 use xml5ever::rcdom::*;
 use xml5ever::rcdom::{Node, RcDom};
 use xml5ever::tendril::TendrilSink;
+use xml5ever::Attribute;
 
 lazy_static! {
     static ref FONT_LIST: FontList = FontList::new();
diff --git a/components/gfx/platform/freetype/font.rs b/components/gfx/platform/freetype/font.rs
index e0b34ae9be1..ab315b7cc02 100644
--- a/components/gfx/platform/freetype/font.rs
+++ b/components/gfx/platform/freetype/font.rs
@@ -2,6 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use super::c_str_to_string;
 use app_units::Au;
 use crate::font::{FontHandleMethods, FontMetrics, FontTableMethods};
 use crate::font::{FontTableTag, FractionalPixel, GPOS, GSUB, KERN};
@@ -9,6 +10,7 @@ use crate::platform::font_context::FontContextHandle;
 use crate::platform::font_template::FontTemplateData;
 use crate::text::glyph::GlyphId;
 use crate::text::util::fixed_to_float;
+use freetype::freetype::FT_Sfnt_Tag;
 use freetype::freetype::{FT_Done_Face, FT_New_Face, FT_New_Memory_Face};
 use freetype::freetype::{FT_F26Dot6, FT_Face, FT_FaceRec};
 use freetype::freetype::{FT_Get_Char_Index, FT_Get_Postscript_Name};
@@ -17,18 +19,16 @@ use freetype::freetype::{FT_GlyphSlot, FT_Library, FT_Long, FT_ULong};
 use freetype::freetype::{FT_Int32, FT_Kerning_Mode, FT_STYLE_FLAG_ITALIC};
 use freetype::freetype::{FT_Load_Glyph, FT_Set_Char_Size};
 use freetype::freetype::{FT_SizeRec, FT_Size_Metrics, FT_UInt, FT_Vector};
-use freetype::freetype::FT_Sfnt_Tag;
 use freetype::succeeded;
 use freetype::tt_os2::TT_OS2;
 use servo_atoms::Atom;
-use std::{mem, ptr};
 use std::ffi::CString;
 use std::os::raw::{c_char, c_long};
 use std::sync::Arc;
+use std::{mem, ptr};
 use style::computed_values::font_stretch::T as FontStretch;
 use style::computed_values::font_weight::T as FontWeight;
 use style::values::computed::font::FontStyle;
-use super::c_str_to_string;
 
 // This constant is not present in the freetype
 // bindings due to bindgen not handling the way
diff --git a/components/gfx/platform/freetype/font_context.rs b/components/gfx/platform/freetype/font_context.rs
index dbc8816efc5..2da91cf5008 100644
--- a/components/gfx/platform/freetype/font_context.rs
+++ b/components/gfx/platform/freetype/font_context.rs
@@ -10,7 +10,7 @@ use freetype::freetype::FT_MemoryRec_;
 use freetype::freetype::FT_New_Library;
 use freetype::succeeded;
 use malloc_size_of::{MallocSizeOf, MallocSizeOfOps};
-use servo_allocator::libc_compat::{malloc, realloc, free};
+use servo_allocator::libc_compat::{free, malloc, realloc};
 use servo_allocator::usable_size;
 use std::os::raw::{c_long, c_void};
 use std::ptr;
diff --git a/components/gfx/platform/freetype/font_list.rs b/components/gfx/platform/freetype/font_list.rs
index 71b7e9bc4e0..e285a4eee58 100644
--- a/components/gfx/platform/freetype/font_list.rs
+++ b/components/gfx/platform/freetype/font_list.rs
@@ -2,18 +2,20 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use super::c_str_to_string;
 use crate::text::util::is_cjk;
 use fontconfig::fontconfig::{FcChar8, FcResultMatch, FcSetSystem};
 use fontconfig::fontconfig::{FcConfigGetCurrent, FcConfigGetFonts, FcConfigSubstitute};
 use fontconfig::fontconfig::{FcDefaultSubstitute, FcFontMatch, FcNameParse, FcPatternGetString};
 use fontconfig::fontconfig::{FcFontSetDestroy, FcMatchPattern, FcPatternCreate, FcPatternDestroy};
-use fontconfig::fontconfig::{FcFontSetList, FcObjectSetCreate, FcObjectSetDestroy, FcPatternAddString};
+use fontconfig::fontconfig::{
+    FcFontSetList, FcObjectSetCreate, FcObjectSetDestroy, FcPatternAddString,
+};
 use fontconfig::fontconfig::{FcObjectSetAdd, FcPatternGetInteger};
 use libc;
 use libc::{c_char, c_int};
 use std::ffi::CString;
 use std::ptr;
-use super::c_str_to_string;
 
 static FC_FAMILY: &'static [u8] = b"family\0";
 static FC_FILE: &'static [u8] = b"file\0";
diff --git a/components/gfx/platform/freetype/font_template.rs b/components/gfx/platform/freetype/font_template.rs
index 136f30f7337..90bb5677167 100644
--- a/components/gfx/platform/freetype/font_template.rs
+++ b/components/gfx/platform/freetype/font_template.rs
@@ -5,7 +5,7 @@
 use servo_atoms::Atom;
 use std::fmt;
 use std::fs::File;
-use std::io::{Read, Error};
+use std::io::{Error, Read};
 use webrender_api::NativeFontHandle;
 
 /// Platform specific font representation for Linux.
diff --git a/components/gfx/platform/macos/font.rs b/components/gfx/platform/macos/font.rs
index 9e6379db20f..a27cc2a7c43 100644
--- a/components/gfx/platform/macos/font.rs
+++ b/components/gfx/platform/macos/font.rs
@@ -11,17 +11,19 @@ use core_foundation::string::UniChar;
 use core_graphics::font::CGGlyph;
 use core_graphics::geometry::CGRect;
 use core_text::font::CTFont;
-use core_text::font_descriptor::{SymbolicTraitAccessors, TraitAccessors};
 use core_text::font_descriptor::kCTFontDefaultOrientation;
-use crate::font::{FontHandleMethods, FontMetrics, FontTableMethods, FontTableTag, FractionalPixel};
+use core_text::font_descriptor::{SymbolicTraitAccessors, TraitAccessors};
+use crate::font::{
+    FontHandleMethods, FontMetrics, FontTableMethods, FontTableTag, FractionalPixel,
+};
 use crate::font::{GPOS, GSUB, KERN};
 use crate::platform::font_template::FontTemplateData;
 use crate::platform::macos::font_context::FontContextHandle;
 use crate::text::glyph::GlyphId;
 use servo_atoms::Atom;
-use std::{fmt, ptr};
 use std::ops::Range;
 use std::sync::Arc;
+use std::{fmt, ptr};
 use style::values::computed::font::{FontStretch, FontStyle, FontWeight};
 
 const KERN_PAIR_LEN: usize = 6;
diff --git a/components/gfx/platform/macos/font_template.rs b/components/gfx/platform/macos/font_template.rs
index 9452266ba93..ea6bd57e413 100644
--- a/components/gfx/platform/macos/font_template.rs
+++ b/components/gfx/platform/macos/font_template.rs
@@ -7,15 +7,15 @@ use core_graphics::data_provider::CGDataProvider;
 use core_graphics::font::CGFont;
 use core_text;
 use core_text::font::CTFont;
-use serde::{Deserialize, Deserializer, Serialize, Serializer};
 use serde::de::{Error, Visitor};
+use serde::{Deserialize, Deserializer, Serialize, Serializer};
 use servo_atoms::Atom;
 use servo_url::ServoUrl;
 use std::borrow::ToOwned;
 use std::collections::HashMap;
 use std::fmt;
 use std::fs::File;
-use std::io::{Read, Error as IoError};
+use std::io::{Error as IoError, Read};
 use std::ops::Deref;
 use std::sync::{Arc, Mutex};
 use webrender_api::NativeFontHandle;
diff --git a/components/gfx/platform/windows/font.rs b/components/gfx/platform/windows/font.rs
index b0dd1273cf7..54649fe01ef 100644
--- a/components/gfx/platform/windows/font.rs
+++ b/components/gfx/platform/windows/font.rs
@@ -23,8 +23,8 @@ use std::sync::Arc;
 use style::computed_values::font_stretch::T as StyleFontStretch;
 use style::computed_values::font_weight::T as StyleFontWeight;
 use style::values::computed::font::FontStyle as StyleFontStyle;
-use style::values::generics::NonNegative;
 use style::values::generics::font::FontStyle as GenericFontStyle;
+use style::values::generics::NonNegative;
 use style::values::specified::font::FontStretchKeyword;
 use truetype;
 
@@ -119,7 +119,7 @@ struct FontInfo {
 
 impl FontInfo {
     fn new_from_face(face: &FontFace) -> Result<FontInfo, ()> {
-        use std::cmp::{min, max};
+        use std::cmp::{max, min};
         use std::io::Cursor;
         use truetype::{NamingTable, Value, WindowsMetrics};
 
diff --git a/components/gfx/platform/windows/font_list.rs b/components/gfx/platform/windows/font_list.rs
index 21e47aa76e6..ac58f7c91d4 100644
--- a/components/gfx/platform/windows/font_list.rs
+++ b/components/gfx/platform/windows/font_list.rs
@@ -3,11 +3,11 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use crate::text::util::unicode_plane;
-use dwrote::{Font, FontDescriptor, FontCollection};
+use dwrote::{Font, FontCollection, FontDescriptor};
 use servo_atoms::Atom;
 use std::collections::HashMap;
+use std::sync::atomic::{AtomicUsize, Ordering};
 use std::sync::Mutex;
-use std::sync::atomic::{Ordering, AtomicUsize};
 use ucd::{Codepoint, UnicodeBlock};
 
 lazy_static! {
diff --git a/components/gfx/tests/font_context.rs b/components/gfx/tests/font_context.rs
index ba9e7afbdb0..d4dea69597d 100644
--- a/components/gfx/tests/font_context.rs
+++ b/components/gfx/tests/font_context.rs
@@ -10,8 +10,10 @@ extern crate style;
 extern crate webrender_api;
 
 use app_units::Au;
-use gfx::font::{fallback_font_families, FontDescriptor, FontFamilyDescriptor, FontFamilyName, FontSearchScope};
-use gfx::font_cache_thread::{FontTemplates, FontTemplateInfo};
+use gfx::font::{
+    fallback_font_families, FontDescriptor, FontFamilyDescriptor, FontFamilyName, FontSearchScope,
+};
+use gfx::font_cache_thread::{FontTemplateInfo, FontTemplates};
 use gfx::font_context::{FontContext, FontContextHandle, FontSource};
 use gfx::font_template::FontTemplateDescriptor;
 use servo_arc::Arc;
@@ -24,7 +26,9 @@ use std::path::PathBuf;
 use std::rc::Rc;
 use style::properties::longhands::font_variant_caps::computed_value::T as FontVariantCaps;
 use style::properties::style_structs::Font as FontStyleStruct;
-use style::values::computed::font::{FamilyName, FamilyNameSyntax, FontFamily, FontFamilyList, FontSize};
+use style::values::computed::font::{
+    FamilyName, FamilyNameSyntax, FontFamily, FontFamilyList, FontSize,
+};
 use style::values::computed::font::{FontStretch, FontWeight, SingleFontFamily};
 use style::values::generics::font::FontStyle;
 
diff --git a/components/gfx/tests/font_template.rs b/components/gfx/tests/font_template.rs
index 6e7fa8aea5a..8d1935f738d 100644
--- a/components/gfx/tests/font_template.rs
+++ b/components/gfx/tests/font_template.rs
@@ -19,10 +19,10 @@ fn test_font_template_descriptor() {
     use std::fs::File;
     use std::io::prelude::*;
     use std::path::PathBuf;
-    use style::values::computed::Percentage;
     use style::values::computed::font::{FontStretch, FontWeight};
-    use style::values::generics::NonNegative;
+    use style::values::computed::Percentage;
     use style::values::generics::font::FontStyle;
+    use style::values::generics::NonNegative;
 
     fn descriptor(filename: &str) -> FontTemplateDescriptor {
         let mut path: PathBuf = [
diff --git a/components/gfx/tests/text_util.rs b/components/gfx/tests/text_util.rs
index 0b8132e9c88..c35a06a2e2f 100644
--- a/components/gfx/tests/text_util.rs
+++ b/components/gfx/tests/text_util.rs
@@ -4,7 +4,7 @@
 
 extern crate gfx;
 
-use gfx::text::util::{CompressionMode, transform_text};
+use gfx::text::util::{transform_text, CompressionMode};
 
 #[test]
 fn test_transform_compress_none() {
diff --git a/components/gfx/text/glyph.rs b/components/gfx/text/glyph.rs
index 3f3a92ccb7a..d7029e86225 100644
--- a/components/gfx/text/glyph.rs
+++ b/components/gfx/text/glyph.rs
@@ -10,9 +10,9 @@ use euclid::Point2D;
 ))]
 use packed_simd::u32x4;
 use range::{self, EachIndex, Range, RangeIndex};
-use std::{fmt, mem, u16};
 use std::cmp::{Ordering, PartialOrd};
 use std::vec::Vec;
+use std::{fmt, mem, u16};
 
 pub use gfx_traits::ByteIndex;
 
diff --git a/components/gfx/text/shaping/harfbuzz.rs b/components/gfx/text/shaping/harfbuzz.rs
index 343c27c63c9..675c57b4615 100644
--- a/components/gfx/text/shaping/harfbuzz.rs
+++ b/components/gfx/text/shaping/harfbuzz.rs
@@ -5,15 +5,7 @@
 #![allow(unsafe_code)]
 
 use app_units::Au;
-use crate::font::{ShapingFlags, Font, FontTableMethods, FontTableTag, ShapingOptions, KERN};
-use crate::harfbuzz::{HB_DIRECTION_LTR, HB_DIRECTION_RTL, HB_MEMORY_MODE_READONLY};
-use crate::harfbuzz::{hb_blob_create, hb_face_create_for_tables};
-use crate::harfbuzz::{hb_buffer_create, hb_font_destroy};
-use crate::harfbuzz::{hb_buffer_get_glyph_infos, hb_shape};
-use crate::harfbuzz::{hb_buffer_set_direction, hb_buffer_set_script};
-use crate::harfbuzz::{hb_buffer_t, hb_codepoint_t, hb_font_funcs_t};
-use crate::harfbuzz::{hb_face_t, hb_font_t};
-use crate::harfbuzz::{hb_position_t, hb_tag_t};
+use crate::font::{Font, FontTableMethods, FontTableTag, ShapingFlags, ShapingOptions, KERN};
 use crate::harfbuzz::hb_blob_t;
 use crate::harfbuzz::hb_bool_t;
 use crate::harfbuzz::hb_buffer_add_utf8;
@@ -32,13 +24,21 @@ use crate::harfbuzz::hb_font_set_ppem;
 use crate::harfbuzz::hb_font_set_scale;
 use crate::harfbuzz::hb_glyph_info_t;
 use crate::harfbuzz::hb_glyph_position_t;
+use crate::harfbuzz::{hb_blob_create, hb_face_create_for_tables};
+use crate::harfbuzz::{hb_buffer_create, hb_font_destroy};
+use crate::harfbuzz::{hb_buffer_get_glyph_infos, hb_shape};
+use crate::harfbuzz::{hb_buffer_set_direction, hb_buffer_set_script};
+use crate::harfbuzz::{hb_buffer_t, hb_codepoint_t, hb_font_funcs_t};
+use crate::harfbuzz::{hb_face_t, hb_font_t};
+use crate::harfbuzz::{hb_position_t, hb_tag_t};
+use crate::harfbuzz::{HB_DIRECTION_LTR, HB_DIRECTION_RTL, HB_MEMORY_MODE_READONLY};
 use crate::platform::font::FontTable;
 use crate::text::glyph::{ByteIndex, GlyphData, GlyphId, GlyphStore};
 use crate::text::shaping::ShaperMethods;
 use crate::text::util::{fixed_to_float, float_to_fixed, is_bidi_control};
 use euclid::Point2D;
-use std::{char, cmp, ptr};
 use std::os::raw::{c_char, c_int, c_uint, c_void};
+use std::{char, cmp, ptr};
 
 const NO_GLYPH: i32 = -1;
 const LIGA: u32 = ot_tag!('l', 'i', 'g', 'a');
diff --git a/components/gfx/text/text_run.rs b/components/gfx/text/text_run.rs
index e4871615fa0..40e8aaf2427 100644
--- a/components/gfx/text/text_run.rs
+++ b/components/gfx/text/text_run.rs
@@ -9,7 +9,7 @@ use crate::platform::font_template::FontTemplateData;
 use crate::text::glyph::{ByteIndex, GlyphStore};
 use range::Range;
 use std::cell::Cell;
-use std::cmp::{Ordering, max};
+use std::cmp::{max, Ordering};
 use std::slice::Iter;
 use std::sync::Arc;
 use style::str::char_is_whitespace;
diff --git a/components/gfx_traits/lib.rs b/components/gfx_traits/lib.rs
index 457814abddf..308c01cd279 100644
--- a/components/gfx_traits/lib.rs
+++ b/components/gfx_traits/lib.rs
@@ -17,7 +17,7 @@ extern crate serde;
 pub mod print_tree;
 
 use range::RangeIndex;
-use std::sync::atomic::{ATOMIC_USIZE_INIT, AtomicUsize, Ordering};
+use std::sync::atomic::{AtomicUsize, Ordering, ATOMIC_USIZE_INIT};
 
 /// A newtype struct for denoting the age of messages; prevents race conditions.
 #[derive(Clone, Copy, Debug, Deserialize, Eq, Hash, Ord, PartialEq, PartialOrd, Serialize)]
diff --git a/components/hashglobe/src/fake.rs b/components/hashglobe/src/fake.rs
index c5cd9d39bb7..d2cdd549e48 100644
--- a/components/hashglobe/src/fake.rs
+++ b/components/hashglobe/src/fake.rs
@@ -20,8 +20,8 @@ use std::fmt;
 use std::hash::{BuildHasher, Hash};
 use std::ops::{Deref, DerefMut};
 
-pub use std::collections::hash_map::{Entry, RandomState, Iter as MapIter, IterMut as MapIterMut};
-pub use std::collections::hash_set::{Iter as SetIter, IntoIter as SetIntoIter};
+pub use std::collections::hash_map::{Entry, Iter as MapIter, IterMut as MapIterMut, RandomState};
+pub use std::collections::hash_set::{IntoIter as SetIntoIter, Iter as SetIter};
 
 #[derive(Clone)]
 pub struct HashMap<K, V, S = RandomState>(StdMap<K, V, S>);
diff --git a/components/hashglobe/src/hash_map.rs b/components/hashglobe/src/hash_map.rs
index 57ac9bcc049..03ade951e1e 100644
--- a/components/hashglobe/src/hash_map.rs
+++ b/components/hashglobe/src/hash_map.rs
@@ -15,13 +15,13 @@ use std::borrow::Borrow;
 use std::cmp::max;
 use std::fmt::{self, Debug};
 #[allow(deprecated)]
-use std::hash::{Hash, BuildHasher};
+use std::hash::{BuildHasher, Hash};
 use std::iter::FromIterator;
 use std::mem::{self, replace};
 use std::ops::{Deref, Index};
 
-use super::table::{self, Bucket, EmptyBucket, FullBucket, FullBucketMut, RawTable, SafeHash};
 use super::table::BucketState::{Empty, Full};
+use super::table::{self, Bucket, EmptyBucket, FullBucket, FullBucketMut, RawTable, SafeHash};
 
 use FailedAllocationError;
 
@@ -2214,11 +2214,11 @@ fn assert_covariance() {
 #[cfg(test)]
 mod test_map {
     extern crate rand;
-    use super::HashMap;
+    use self::rand::{thread_rng, Rng};
     use super::Entry::{Occupied, Vacant};
+    use super::HashMap;
     use super::RandomState;
     use cell::RefCell;
-    use self::rand::{thread_rng, Rng};
 
     #[test]
     fn test_zero_capacities() {
diff --git a/components/hashglobe/src/hash_set.rs b/components/hashglobe/src/hash_set.rs
index 34e657e44fc..694e01c46eb 100644
--- a/components/hashglobe/src/hash_set.rs
+++ b/components/hashglobe/src/hash_set.rs
@@ -10,12 +10,12 @@
 
 use std::borrow::Borrow;
 use std::fmt;
-use std::hash::{Hash, BuildHasher};
+use std::hash::{BuildHasher, Hash};
 use std::iter::{Chain, FromIterator};
-use std::ops::{BitOr, BitAnd, BitXor, Sub};
+use std::ops::{BitAnd, BitOr, BitXor, Sub};
 
-use super::Recover;
 use super::hash_map::{self, HashMap, Keys, RandomState};
+use super::Recover;
 
 // Future Optimization (FIXME!)
 // =============================
@@ -1258,8 +1258,8 @@ fn assert_covariance() {
 
 #[cfg(test)]
 mod test_set {
-    use super::HashSet;
     use super::hash_map::RandomState;
+    use super::HashSet;
 
     #[test]
     fn test_zero_capacities() {
diff --git a/components/hashglobe/src/table.rs b/components/hashglobe/src/table.rs
index 0b8b49001e2..15e3394884f 100644
--- a/components/hashglobe/src/table.rs
+++ b/components/hashglobe/src/table.rs
@@ -9,13 +9,13 @@
 // except according to those terms.
 
 use alloc::{alloc, dealloc};
+use shim::{Shared, Unique};
 use std::cmp;
 use std::hash::{BuildHasher, Hash, Hasher};
 use std::marker;
 use std::mem::{self, align_of, size_of};
 use std::ops::{Deref, DerefMut};
 use std::ptr;
-use shim::{Unique, Shared};
 
 use self::BucketState::*;
 use FailedAllocationError;
diff --git a/components/layout/animation.rs b/components/layout/animation.rs
index 9ce47e16d5a..2a2b49d9715 100644
--- a/components/layout/animation.rs
+++ b/components/layout/animation.rs
@@ -11,10 +11,10 @@ use crate::opaque_node::OpaqueNodeMethods;
 use fxhash::FxHashMap;
 use ipc_channel::ipc::IpcSender;
 use msg::constellation_msg::PipelineId;
-use script_traits::{AnimationState, ConstellationControlMsg, LayoutMsg as ConstellationMsg};
 use script_traits::UntrustedNodeAddress;
+use script_traits::{AnimationState, ConstellationControlMsg, LayoutMsg as ConstellationMsg};
 use servo_channel::Receiver;
-use style::animation::{Animation, update_style_for_animation};
+use style::animation::{update_style_for_animation, Animation};
 use style::dom::TElement;
 use style::font_metrics::ServoMetricsProvider;
 use style::selector_parser::RestyleDamage;
diff --git a/components/layout/block.rs b/components/layout/block.rs
index 99ca7ada523..9fbd7434ea9 100644
--- a/components/layout/block.rs
+++ b/components/layout/block.rs
@@ -27,18 +27,26 @@
 
 use app_units::{Au, MAX_AU};
 use crate::context::LayoutContext;
+use crate::display_list::items::DisplayListSection;
+use crate::display_list::StackingContextCollectionState;
 use crate::display_list::{BlockFlowDisplayListBuilding, BorderPaintingMode};
 use crate::display_list::{DisplayListBuildState, StackingContextCollectionFlags};
-use crate::display_list::StackingContextCollectionState;
-use crate::display_list::items::DisplayListSection;
 use crate::floats::{ClearType, FloatKind, Floats, PlacementInfo};
-use crate::flow::{BaseFlow, EarlyAbsolutePositionInfo, Flow, FlowClass, ForceNonfloatedFlag, GetBaseFlow};
-use crate::flow::{ImmutableFlowUtils, LateAbsolutePositionInfo, OpaqueFlow, FragmentationContext, FlowFlags};
+use crate::flow::{
+    BaseFlow, EarlyAbsolutePositionInfo, Flow, FlowClass, ForceNonfloatedFlag, GetBaseFlow,
+};
+use crate::flow::{
+    FlowFlags, FragmentationContext, ImmutableFlowUtils, LateAbsolutePositionInfo, OpaqueFlow,
+};
 use crate::flow_list::FlowList;
-use crate::fragment::{CoordinateSystem, Fragment, FragmentBorderBoxIterator, Overflow, FragmentFlags};
+use crate::fragment::{
+    CoordinateSystem, Fragment, FragmentBorderBoxIterator, FragmentFlags, Overflow,
+};
 use crate::incremental::RelayoutMode;
 use crate::layout_debug;
-use crate::model::{AdjoiningMargins, CollapsibleMargins, IntrinsicISizes, MarginCollapseInfo, MaybeAuto};
+use crate::model::{
+    AdjoiningMargins, CollapsibleMargins, IntrinsicISizes, MarginCollapseInfo, MaybeAuto,
+};
 use crate::sequential;
 use crate::traversal::PreorderFlowTraversal;
 use euclid::{Point2D, Rect, SideOffsets2D, Size2D};
@@ -58,8 +66,8 @@ use style::context::SharedStyleContext;
 use style::logical_geometry::{LogicalMargin, LogicalPoint, LogicalRect, LogicalSize, WritingMode};
 use style::properties::ComputedValues;
 use style::servo::restyle_damage::ServoRestyleDamage;
-use style::values::computed::{LengthOrPercentageOrNone, LengthOrPercentage};
 use style::values::computed::LengthOrPercentageOrAuto;
+use style::values::computed::{LengthOrPercentage, LengthOrPercentageOrNone};
 
 /// Information specific to floated blocks.
 #[derive(Clone, Serialize)]
diff --git a/components/layout/construct.rs b/components/layout/construct.rs
index bfa6e878943..ee0e0ee451a 100644
--- a/components/layout/construct.rs
+++ b/components/layout/construct.rs
@@ -11,21 +11,28 @@
 //! maybe it's an absolute or fixed position thing that hasn't found its containing block yet.
 //! Construction items bubble up the tree from children to parents until they find their homes.
 
-use crate::ServoArc;
 use crate::block::BlockFlow;
-use crate::context::{LayoutContext, with_thread_local_font_context};
-use crate::data::{LayoutDataFlags, LayoutData};
+use crate::context::{with_thread_local_font_context, LayoutContext};
+use crate::data::{LayoutData, LayoutDataFlags};
 use crate::display_list::items::OpaqueNode;
 use crate::flex::FlexFlow;
 use crate::floats::FloatKind;
 use crate::flow::{AbsoluteDescendants, Flow, FlowClass, GetBaseFlow, ImmutableFlowUtils};
 use crate::flow::{FlowFlags, MutableFlowUtils, MutableOwnedFlowUtils};
 use crate::flow_ref::FlowRef;
-use crate::fragment::{CanvasFragmentInfo, Fragment, FragmentFlags, GeneratedContentInfo, IframeFragmentInfo};
-use crate::fragment::{ImageFragmentInfo, InlineAbsoluteFragmentInfo, InlineAbsoluteHypotheticalFragmentInfo};
-use crate::fragment::{InlineBlockFragmentInfo, MediaFragmentInfo, SpecificFragmentInfo, SvgFragmentInfo};
-use crate::fragment::{TableColumnFragmentInfo, UnscannedTextFragmentInfo, WhitespaceStrippingResult};
-use crate::inline::{InlineFlow, InlineFragmentNodeInfo, InlineFragmentNodeFlags};
+use crate::fragment::{
+    CanvasFragmentInfo, Fragment, FragmentFlags, GeneratedContentInfo, IframeFragmentInfo,
+};
+use crate::fragment::{
+    ImageFragmentInfo, InlineAbsoluteFragmentInfo, InlineAbsoluteHypotheticalFragmentInfo,
+};
+use crate::fragment::{
+    InlineBlockFragmentInfo, MediaFragmentInfo, SpecificFragmentInfo, SvgFragmentInfo,
+};
+use crate::fragment::{
+    TableColumnFragmentInfo, UnscannedTextFragmentInfo, WhitespaceStrippingResult,
+};
+use crate::inline::{InlineFlow, InlineFragmentNodeFlags, InlineFragmentNodeInfo};
 use crate::linked_list::prepend_from;
 use crate::list_item::{ListItemFlow, ListStyleTypeContent};
 use crate::multicol::{MulticolColumnFlow, MulticolFlow};
@@ -40,15 +47,18 @@ use crate::table_wrapper::TableWrapperFlow;
 use crate::text::TextRunScanner;
 use crate::traversal::PostorderNodeMutTraversal;
 use crate::wrapper::{LayoutNodeLayoutData, TextContent, ThreadSafeLayoutNodeHelpers};
-use script_layout_interface::{LayoutElementType, LayoutNodeType, is_image_data};
-use script_layout_interface::wrapper_traits::{PseudoElementType, ThreadSafeLayoutElement, ThreadSafeLayoutNode};
+use crate::ServoArc;
+use script_layout_interface::wrapper_traits::{
+    PseudoElementType, ThreadSafeLayoutElement, ThreadSafeLayoutNode,
+};
+use script_layout_interface::{is_image_data, LayoutElementType, LayoutNodeType};
 use servo_config::opts;
 use servo_url::ServoUrl;
 use std::collections::LinkedList;
 use std::marker::PhantomData;
 use std::mem;
-use std::sync::Arc;
 use std::sync::atomic::Ordering;
+use std::sync::Arc;
 use style::computed_values::caption_side::T as CaptionSide;
 use style::computed_values::display::T as Display;
 use style::computed_values::empty_cells::T as EmptyCells;
diff --git a/components/layout/context.rs b/components/layout/context.rs
index 134a3cedec1..1ab4637cd8a 100644
--- a/components/layout/context.rs
+++ b/components/layout/context.rs
@@ -4,7 +4,7 @@
 
 //! Data needed by the layout thread.
 
-use crate::display_list::items::{WebRenderImageInfo, OpaqueNode};
+use crate::display_list::items::{OpaqueNode, WebRenderImageInfo};
 use crate::opaque_node::OpaqueNodeMethods;
 use fnv::FnvHasher;
 use gfx::font_cache_thread::FontCacheThread;
diff --git a/components/layout/display_list/background.rs b/components/layout/display_list/background.rs
index 23e519f1c1d..a8d0cebde12 100644
--- a/components/layout/display_list/background.rs
+++ b/components/layout/display_list/background.rs
@@ -13,8 +13,8 @@ use style::computed_values::background_clip::single_value::T as BackgroundClip;
 use style::computed_values::background_origin::single_value::T as BackgroundOrigin;
 use style::properties::style_structs::Background;
 use style::values::computed::{BackgroundSize, LengthOrPercentageOrAuto};
-use style::values::generics::NonNegative;
 use style::values::generics::background::BackgroundSize as GenericBackgroundSize;
+use style::values::generics::NonNegative;
 use style::values::specified::background::BackgroundRepeatKeyword;
 use webrender_api::BorderRadius;
 
diff --git a/components/layout/display_list/border.rs b/components/layout/display_list/border.rs
index f32f5a84399..a70fc2bb452 100644
--- a/components/layout/display_list/border.rs
+++ b/components/layout/display_list/border.rs
@@ -9,14 +9,14 @@ use crate::display_list::ToLayout;
 use euclid::{Rect, SideOffsets2D, Size2D};
 use style::computed_values::border_image_outset::T as BorderImageOutset;
 use style::properties::style_structs::Border;
-use style::values::Either;
+use style::values::computed::NumberOrPercentage;
 use style::values::computed::{BorderCornerRadius, BorderImageWidth};
 use style::values::computed::{BorderImageSideWidth, LengthOrNumber};
-use style::values::computed::NumberOrPercentage;
-use style::values::generics::border::{BorderImageSideWidth as GenericBorderImageSideWidth};
+use style::values::generics::border::BorderImageSideWidth as GenericBorderImageSideWidth;
 use style::values::generics::rect::Rect as StyleRect;
+use style::values::Either;
 use webrender_api::{BorderRadius, BorderSide, BorderStyle, ColorF};
-use webrender_api::{LayoutSize, LayoutSideOffsets, NormalBorder};
+use webrender_api::{LayoutSideOffsets, LayoutSize, NormalBorder};
 
 /// Computes a border radius size against the containing size.
 ///
diff --git a/components/layout/display_list/builder.rs b/components/layout/display_list/builder.rs
index 2d99900eac2..a57f9292bb1 100644
--- a/components/layout/display_list/builder.rs
+++ b/components/layout/display_list/builder.rs
@@ -12,31 +12,31 @@ use app_units::{Au, AU_PER_PX};
 use canvas_traits::canvas::{CanvasMsg, FromLayoutMsg};
 use crate::block::BlockFlow;
 use crate::context::LayoutContext;
-use crate::display_list::ToLayout;
 use crate::display_list::background::{self, get_cyclic};
 use crate::display_list::border;
 use crate::display_list::gradient;
-use crate::display_list::items::{BaseDisplayItem, BLUR_INFLATION_FACTOR, ClipScrollNode};
+use crate::display_list::items::{BaseDisplayItem, ClipScrollNode, BLUR_INFLATION_FACTOR};
 use crate::display_list::items::{ClipScrollNodeIndex, ClipScrollNodeType, ClippingAndScrolling};
 use crate::display_list::items::{ClippingRegion, DisplayItem, DisplayItemMetadata, DisplayList};
-use crate::display_list::items::{DisplayListSection, CommonDisplayItem};
+use crate::display_list::items::{CommonDisplayItem, DisplayListSection};
 use crate::display_list::items::{IframeDisplayItem, OpaqueNode};
 use crate::display_list::items::{PopAllTextShadowsDisplayItem, PushTextShadowDisplayItem};
 use crate::display_list::items::{StackingContext, StackingContextType, StickyFrameData};
 use crate::display_list::items::{TextOrientation, WebRenderImageInfo};
+use crate::display_list::ToLayout;
 use crate::flex::FlexFlow;
 use crate::flow::{BaseFlow, Flow, FlowFlags};
 use crate::flow_ref::FlowRef;
-use crate::fragment::{CanvasFragmentSource, CoordinateSystem, Fragment, ScannedTextFragmentInfo};
 use crate::fragment::SpecificFragmentInfo;
+use crate::fragment::{CanvasFragmentSource, CoordinateSystem, Fragment, ScannedTextFragmentInfo};
 use crate::inline::{InlineFlow, InlineFragmentNodeFlags};
 use crate::list_item::ListItemFlow;
 use crate::model::MaybeAuto;
 use crate::table_cell::CollapsedBordersForCell;
 use euclid::{rect, Point2D, Rect, SideOffsets2D, Size2D, TypedSize2D, Vector2D};
 use fnv::FnvHashMap;
-use gfx::text::TextRun;
 use gfx::text::glyph::ByteIndex;
+use gfx::text::TextRun;
 use gfx_traits::{combine_id_with_fragment_type, FragmentType, StackingContextId};
 use ipc_channel::ipc;
 use msg::constellation_msg::{BrowsingContextId, PipelineId};
@@ -56,20 +56,20 @@ use style::computed_values::visibility::T as Visibility;
 use style::logical_geometry::{LogicalMargin, LogicalPoint, LogicalRect};
 use style::properties::{style_structs, ComputedValues};
 use style::servo::restyle_damage::ServoRestyleDamage;
-use style::values::{Either, RGBA};
-use style::values::computed::Gradient;
 use style::values::computed::effects::SimpleShadow;
 use style::values::computed::image::Image as ComputedImage;
+use style::values::computed::Gradient;
 use style::values::generics::background::BackgroundSize;
 use style::values::generics::image::{GradientKind, Image, PaintWorklet};
 use style::values::generics::ui::Cursor;
+use style::values::{Either, RGBA};
+use style_traits::cursor::CursorKind;
 use style_traits::CSSPixel;
 use style_traits::ToCss;
-use style_traits::cursor::CursorKind;
 use webrender_api::{self, BorderDetails, BorderRadius, BorderSide, BoxShadowClipMode, ColorF};
 use webrender_api::{ExternalScrollId, FilterOp, GlyphInstance, ImageRendering, LayoutRect};
 use webrender_api::{LayoutSize, LayoutTransform, LayoutVector2D, LineStyle, NinePatchBorder};
-use webrender_api::{NinePatchBorderSource, NormalBorder, StickyOffsetBounds, ScrollSensitivity};
+use webrender_api::{NinePatchBorderSource, NormalBorder, ScrollSensitivity, StickyOffsetBounds};
 
 fn establishes_containing_block_for_absolute(
     flags: StackingContextCollectionFlags,
diff --git a/components/layout/display_list/conversions.rs b/components/layout/display_list/conversions.rs
index a40dadb0eb9..39c67253915 100644
--- a/components/layout/display_list/conversions.rs
+++ b/components/layout/display_list/conversions.rs
@@ -7,10 +7,10 @@ use euclid::{Point2D, Rect, SideOffsets2D, Size2D, Vector2D};
 use style::computed_values::image_rendering::T as ImageRendering;
 use style::computed_values::mix_blend_mode::T as MixBlendMode;
 use style::computed_values::transform_style::T as TransformStyle;
-use style::values::RGBA;
 use style::values::computed::{BorderStyle, Filter};
 use style::values::generics::effects::Filter as GenericFilter;
 use style::values::specified::border::BorderImageRepeatKeyword;
+use style::values::RGBA;
 use webrender_api as wr;
 
 pub trait ToLayout {
diff --git a/components/layout/display_list/gradient.rs b/components/layout/display_list/gradient.rs
index 70f53cce024..5ce61f84615 100644
--- a/components/layout/display_list/gradient.rs
+++ b/components/layout/display_list/gradient.rs
@@ -8,11 +8,11 @@ use app_units::Au;
 use crate::display_list::ToLayout;
 use euclid::{Point2D, Size2D, Vector2D};
 use style::properties::ComputedValues;
-use style::values::computed::{Angle, GradientItem, LengthOrPercentage, Percentage, Position};
 use style::values::computed::image::{EndingShape, LineDirection};
-use style::values::generics::image::{Circle, Ellipse, ShapeExtent};
+use style::values::computed::{Angle, GradientItem, LengthOrPercentage, Percentage, Position};
 use style::values::generics::image::EndingShape as GenericEndingShape;
 use style::values::generics::image::GradientItem as GenericGradientItem;
+use style::values::generics::image::{Circle, Ellipse, ShapeExtent};
 use style::values::specified::position::{X, Y};
 use webrender_api::{ExtendMode, Gradient, GradientBuilder, GradientStop, RadialGradient};
 
diff --git a/components/layout/display_list/items.rs b/components/layout/display_list/items.rs
index 0a85e0a290a..f07099c5b07 100644
--- a/components/layout/display_list/items.rs
+++ b/components/layout/display_list/items.rs
@@ -13,8 +13,8 @@
 //! low-level drawing primitives.
 
 use euclid::{SideOffsets2D, TypedRect, Vector2D};
-use gfx_traits::{self, StackingContextId};
 use gfx_traits::print_tree::PrintTree;
+use gfx_traits::{self, StackingContextId};
 use msg::constellation_msg::PipelineId;
 use net_traits::image::base::Image;
 use servo_geometry::MaxRect;
diff --git a/components/layout/flex.rs b/components/layout/flex.rs
index d8f0f167198..42cf2c454fe 100644
--- a/components/layout/flex.rs
+++ b/components/layout/flex.rs
@@ -7,10 +7,10 @@
 use app_units::{Au, MAX_AU};
 use crate::block::{AbsoluteAssignBSizesTraversal, BlockFlow, MarginsMayCollapseFlag};
 use crate::context::LayoutContext;
-use crate::display_list::{DisplayListBuildState, FlexFlowDisplayListBuilding};
 use crate::display_list::StackingContextCollectionState;
+use crate::display_list::{DisplayListBuildState, FlexFlowDisplayListBuilding};
 use crate::floats::FloatKind;
-use crate::flow::{Flow, FlowClass, GetBaseFlow, ImmutableFlowUtils, OpaqueFlow, FlowFlags};
+use crate::flow::{Flow, FlowClass, FlowFlags, GetBaseFlow, ImmutableFlowUtils, OpaqueFlow};
 use crate::fragment::{Fragment, FragmentBorderBoxIterator, Overflow};
 use crate::layout_debug;
 use crate::model::{AdjoiningMargins, CollapsibleMargins};
@@ -27,8 +27,10 @@ use style::computed_values::justify_content::T as JustifyContent;
 use style::logical_geometry::{Direction, LogicalSize};
 use style::properties::ComputedValues;
 use style::servo::restyle_damage::ServoRestyleDamage;
-use style::values::computed::{LengthOrPercentage, LengthOrPercentageOrAuto, LengthOrPercentageOrNone};
 use style::values::computed::flex::FlexBasis;
+use style::values::computed::{
+    LengthOrPercentage, LengthOrPercentageOrAuto, LengthOrPercentageOrNone,
+};
 use style::values::generics::flex::FlexBasis as GenericFlexBasis;
 
 /// The size of an axis. May be a specified size, a min/max
diff --git a/components/layout/flow.rs b/components/layout/flow.rs
index aa6b1b1e79d..fea1c94f89d 100644
--- a/components/layout/flow.rs
+++ b/components/layout/flow.rs
@@ -28,8 +28,8 @@
 use app_units::Au;
 use crate::block::{BlockFlow, FormattingContextType};
 use crate::context::LayoutContext;
-use crate::display_list::{DisplayListBuildState, StackingContextCollectionState};
 use crate::display_list::items::ClippingAndScrolling;
+use crate::display_list::{DisplayListBuildState, StackingContextCollectionState};
 use crate::flex::FlexFlow;
 use crate::floats::{Floats, SpeculatedFloatPlacement};
 use crate::flow_list::{FlowList, FlowListIterator, MutFlowListIterator};
@@ -46,16 +46,16 @@ use crate::table_colgroup::TableColGroupFlow;
 use crate::table_row::TableRowFlow;
 use crate::table_rowgroup::TableRowGroupFlow;
 use crate::table_wrapper::TableWrapperFlow;
-use euclid::{Point2D, Vector2D, Rect, Size2D};
-use gfx_traits::StackingContextId;
+use euclid::{Point2D, Rect, Size2D, Vector2D};
 use gfx_traits::print_tree::PrintTree;
+use gfx_traits::StackingContextId;
 use serde::ser::{Serialize, SerializeStruct, Serializer};
 use servo_geometry::{au_rect_to_f32_rect, f32_rect_to_au_rect, MaxRect};
 use std::fmt;
 use std::iter::Zip;
 use std::slice::IterMut;
-use std::sync::Arc;
 use std::sync::atomic::Ordering;
+use std::sync::Arc;
 use style::computed_values::clear::T as Clear;
 use style::computed_values::float::T as Float;
 use style::computed_values::overflow_x::T as StyleOverflow;
diff --git a/components/layout/flow_list.rs b/components/layout/flow_list.rs
index ca6fffe627b..c24734a5a7d 100644
--- a/components/layout/flow_list.rs
+++ b/components/layout/flow_list.rs
@@ -5,8 +5,8 @@
 use crate::flow::{Flow, FlowClass};
 use crate::flow_ref::FlowRef;
 use serde::ser::{Serialize, SerializeSeq, Serializer};
-use serde_json::{Map, Value, to_value};
-use std::collections::{LinkedList, linked_list};
+use serde_json::{to_value, Map, Value};
+use std::collections::{linked_list, LinkedList};
 use std::ops::Deref;
 use std::sync::Arc;
 
diff --git a/components/layout/fragment.rs b/components/layout/fragment.rs
index cb781484e63..37a23807e82 100644
--- a/components/layout/fragment.rs
+++ b/components/layout/fragment.rs
@@ -5,24 +5,24 @@
 //! The `Fragment` type, which represents the leaves of the layout tree.
 
 use app_units::Au;
-use canvas_traits::canvas::{CanvasMsg, CanvasId};
-use crate::ServoArc;
-use crate::context::{LayoutContext, with_thread_local_font_context};
+use canvas_traits::canvas::{CanvasId, CanvasMsg};
+use crate::context::{with_thread_local_font_context, LayoutContext};
+use crate::display_list::items::{ClipScrollNodeIndex, OpaqueNode, BLUR_INFLATION_FACTOR};
 use crate::display_list::ToLayout;
-use crate::display_list::items::{BLUR_INFLATION_FACTOR, ClipScrollNodeIndex, OpaqueNode};
 use crate::floats::ClearType;
 use crate::flow::{GetBaseFlow, ImmutableFlowUtils};
 use crate::flow_ref::FlowRef;
-use crate::inline::{InlineFragmentNodeFlags, InlineFragmentContext, InlineFragmentNodeInfo};
+use crate::inline::{InlineFragmentContext, InlineFragmentNodeFlags, InlineFragmentNodeInfo};
 use crate::inline::{InlineMetrics, LineMetrics};
 #[cfg(debug_assertions)]
 use crate::layout_debug;
-use crate::model::{self, IntrinsicISizes, IntrinsicISizesContribution, MaybeAuto, SizeConstraint};
 use crate::model::style_length;
+use crate::model::{self, IntrinsicISizes, IntrinsicISizesContribution, MaybeAuto, SizeConstraint};
 use crate::text;
 use crate::text::TextRunScanner;
 use crate::wrapper::ThreadSafeLayoutNodeHelpers;
-use euclid::{Point2D, Vector2D, Rect, Size2D};
+use crate::ServoArc;
+use euclid::{Point2D, Rect, Size2D, Vector2D};
 use gfx;
 use gfx::text::glyph::ByteIndex;
 use gfx::text::text_run::{TextRun, TextRunSlice};
@@ -32,15 +32,17 @@ use msg::constellation_msg::{BrowsingContextId, PipelineId};
 use net_traits::image::base::{Image, ImageMetadata};
 use net_traits::image_cache::{ImageOrMetadataAvailable, UsePlaceholder};
 use range::*;
+use script_layout_interface::wrapper_traits::{
+    PseudoElementType, ThreadSafeLayoutElement, ThreadSafeLayoutNode,
+};
 use script_layout_interface::{HTMLCanvasData, HTMLCanvasDataSource, HTMLMediaData, SVGSVGData};
-use script_layout_interface::wrapper_traits::{PseudoElementType, ThreadSafeLayoutElement, ThreadSafeLayoutNode};
 use serde::ser::{Serialize, SerializeStruct, Serializer};
 use servo_url::ServoUrl;
-use std::{f32, fmt};
 use std::borrow::ToOwned;
-use std::cmp::{Ordering, max, min};
+use std::cmp::{max, min, Ordering};
 use std::collections::LinkedList;
 use std::sync::{Arc, Mutex};
+use std::{f32, fmt};
 use style::computed_values::border_collapse::T as BorderCollapse;
 use style::computed_values::box_sizing::T as BoxSizing;
 use style::computed_values::clear::T as Clear;
@@ -59,8 +61,8 @@ use style::properties::ComputedValues;
 use style::selector_parser::RestyleDamage;
 use style::servo::restyle_damage::ServoRestyleDamage;
 use style::str::char_is_whitespace;
-use style::values::computed::{Length, LengthOrPercentage, LengthOrPercentageOrAuto};
 use style::values::computed::counters::ContentItem;
+use style::values::computed::{Length, LengthOrPercentage, LengthOrPercentageOrAuto};
 use style::values::generics::box_::{Perspective, VerticalAlign};
 use style::values::generics::transform;
 use webrender_api::{self, LayoutTransform};
diff --git a/components/layout/generated_content.rs b/components/layout/generated_content.rs
index f7a2836e036..024d51b22fb 100644
--- a/components/layout/generated_content.rs
+++ b/components/layout/generated_content.rs
@@ -8,10 +8,12 @@
 //! done in parallel and is therefore a sequential pass that runs on as little of the flow tree
 //! as possible.
 
-use crate::context::{LayoutContext, with_thread_local_font_context};
+use crate::context::{with_thread_local_font_context, LayoutContext};
 use crate::display_list::items::OpaqueNode;
 use crate::flow::{Flow, FlowFlags, GetBaseFlow, ImmutableFlowUtils};
-use crate::fragment::{Fragment, GeneratedContentInfo, SpecificFragmentInfo, UnscannedTextFragmentInfo};
+use crate::fragment::{
+    Fragment, GeneratedContentInfo, SpecificFragmentInfo, UnscannedTextFragmentInfo,
+};
 use crate::text::TextRunScanner;
 use crate::traversal::InorderFlowTraversal;
 use script_layout_interface::wrapper_traits::PseudoElementType;
diff --git a/components/layout/incremental.rs b/components/layout/incremental.rs
index b0b4ec51437..6734620e5a0 100644
--- a/components/layout/incremental.rs
+++ b/components/layout/incremental.rs
@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::flow::{FlowFlags, Flow, GetBaseFlow};
+use crate::flow::{Flow, FlowFlags, GetBaseFlow};
 use style::computed_values::float::T as Float;
 use style::selector_parser::RestyleDamage;
 use style::servo::restyle_damage::ServoRestyleDamage;
diff --git a/components/layout/inline.rs b/components/layout/inline.rs
index 7f52c817dd1..08a371bac08 100644
--- a/components/layout/inline.rs
+++ b/components/layout/inline.rs
@@ -3,32 +3,32 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use app_units::{Au, MIN_AU};
-use crate::ServoArc;
 use crate::block::AbsoluteAssignBSizesTraversal;
 use crate::context::{LayoutContext, LayoutFontContext};
-use crate::display_list::{DisplayListBuildState, InlineFlowDisplayListBuilding};
-use crate::display_list::StackingContextCollectionState;
 use crate::display_list::items::OpaqueNode;
+use crate::display_list::StackingContextCollectionState;
+use crate::display_list::{DisplayListBuildState, InlineFlowDisplayListBuilding};
 use crate::floats::{FloatKind, Floats, PlacementInfo};
 use crate::flow::{BaseFlow, Flow, FlowClass, ForceNonfloatedFlag};
-use crate::flow::{FlowFlags, EarlyAbsolutePositionInfo, GetBaseFlow, OpaqueFlow};
+use crate::flow::{EarlyAbsolutePositionInfo, FlowFlags, GetBaseFlow, OpaqueFlow};
 use crate::flow_ref::FlowRef;
-use crate::fragment::{CoordinateSystem, Fragment, FragmentBorderBoxIterator, Overflow};
 use crate::fragment::FragmentFlags;
 use crate::fragment::SpecificFragmentInfo;
+use crate::fragment::{CoordinateSystem, Fragment, FragmentBorderBoxIterator, Overflow};
 use crate::layout_debug;
 use crate::model::IntrinsicISizesContribution;
 use crate::text;
 use crate::traversal::PreorderFlowTraversal;
+use crate::ServoArc;
 use euclid::{Point2D, Size2D};
 use gfx::font::FontMetrics;
 use gfx_traits::print_tree::PrintTree;
 use range::{Range, RangeIndex};
 use script_layout_interface::wrapper_traits::PseudoElementType;
-use std::{fmt, i32, isize, mem};
 use std::cmp::max;
 use std::collections::VecDeque;
 use std::sync::Arc;
+use std::{fmt, i32, isize, mem};
 use style::computed_values::display::T as Display;
 use style::computed_values::overflow_x::T as StyleOverflow;
 use style::computed_values::position::T as Position;
diff --git a/components/layout/layout_debug.rs b/components/layout/layout_debug.rs
index 88bae7be23c..dec9d49def5 100644
--- a/components/layout/layout_debug.rs
+++ b/components/layout/layout_debug.rs
@@ -13,7 +13,7 @@ use std::cell::RefCell;
 use std::fs::File;
 use std::io::Write;
 #[cfg(debug_assertions)]
-use std::sync::atomic::{ATOMIC_USIZE_INIT, AtomicUsize, Ordering};
+use std::sync::atomic::{AtomicUsize, Ordering, ATOMIC_USIZE_INIT};
 
 thread_local!(static STATE_KEY: RefCell<Option<State>> = RefCell::new(None));
 
diff --git a/components/layout/lib.rs b/components/layout/lib.rs
index 725ad09061f..b91ee22eba8 100644
--- a/components/layout/lib.rs
+++ b/components/layout/lib.rs
@@ -87,9 +87,9 @@ pub mod traversal;
 pub mod wrapper;
 
 // For unit tests:
+pub use self::data::LayoutData;
 pub use crate::fragment::Fragment;
 pub use crate::fragment::SpecificFragmentInfo;
-pub use self::data::LayoutData;
 
 // We can't use servo_arc for everything in layout, because the Flow stuff uses
 // weak references.
diff --git a/components/layout/list_item.rs b/components/layout/list_item.rs
index 08473cb89ef..cef1487f2f0 100644
--- a/components/layout/list_item.rs
+++ b/components/layout/list_item.rs
@@ -7,13 +7,15 @@
 
 use app_units::Au;
 use crate::block::BlockFlow;
-use crate::context::{LayoutContext, with_thread_local_font_context};
-use crate::display_list::{DisplayListBuildState, ListItemFlowDisplayListBuilding};
+use crate::context::{with_thread_local_font_context, LayoutContext};
 use crate::display_list::StackingContextCollectionState;
+use crate::display_list::{DisplayListBuildState, ListItemFlowDisplayListBuilding};
 use crate::floats::FloatKind;
 use crate::flow::{Flow, FlowClass, OpaqueFlow};
-use crate::fragment::{CoordinateSystem, Fragment, FragmentBorderBoxIterator, GeneratedContentInfo};
 use crate::fragment::Overflow;
+use crate::fragment::{
+    CoordinateSystem, Fragment, FragmentBorderBoxIterator, GeneratedContentInfo,
+};
 use crate::generated_content;
 use crate::inline::InlineFlow;
 use euclid::Point2D;
diff --git a/components/layout/model.rs b/components/layout/model.rs
index 0c10159f480..3fba3e27fba 100644
--- a/components/layout/model.rs
+++ b/components/layout/model.rs
@@ -11,8 +11,8 @@ use std::cmp::{max, min};
 use std::fmt;
 use style::logical_geometry::{LogicalMargin, WritingMode};
 use style::properties::ComputedValues;
-use style::values::computed::{LengthOrPercentageOrAuto, LengthOrPercentage};
 use style::values::computed::LengthOrPercentageOrNone;
+use style::values::computed::{LengthOrPercentage, LengthOrPercentageOrAuto};
 
 /// A collapsible margin. See CSS 2.1 § 8.3.1.
 #[derive(Clone, Copy, Debug)]
diff --git a/components/layout/multicol.rs b/components/layout/multicol.rs
index 79f25482d9e..71d9befac61 100644
--- a/components/layout/multicol.rs
+++ b/components/layout/multicol.rs
@@ -5,23 +5,23 @@
 //! CSS Multi-column layout http://dev.w3.org/csswg/css-multicol/
 
 use app_units::Au;
-use crate::ServoArc;
 use crate::block::BlockFlow;
 use crate::context::LayoutContext;
 use crate::display_list::{DisplayListBuildState, StackingContextCollectionState};
 use crate::floats::FloatKind;
-use crate::flow::{Flow, FlowClass, OpaqueFlow, FragmentationContext, GetBaseFlow};
+use crate::flow::{Flow, FlowClass, FragmentationContext, GetBaseFlow, OpaqueFlow};
 use crate::fragment::{Fragment, FragmentBorderBoxIterator, Overflow};
+use crate::ServoArc;
 use euclid::{Point2D, Vector2D};
 use gfx_traits::print_tree::PrintTree;
-use std::cmp::{min, max};
+use std::cmp::{max, min};
 use std::fmt;
 use std::sync::Arc;
 use style::logical_geometry::LogicalSize;
 use style::properties::ComputedValues;
-use style::values::Either;
 use style::values::computed::{LengthOrPercentageOrAuto, LengthOrPercentageOrNone};
 use style::values::generics::column::ColumnCount;
+use style::values::Either;
 
 #[allow(unsafe_code)]
 unsafe impl crate::flow::HasBaseFlow for MulticolFlow {}
diff --git a/components/layout/parallel.rs b/components/layout/parallel.rs
index 1587e957007..f510851ce92 100644
--- a/components/layout/parallel.rs
+++ b/components/layout/parallel.rs
@@ -14,7 +14,7 @@ use crate::flow::{Flow, GetBaseFlow};
 use crate::flow_ref::FlowRef;
 use crate::traversal::{AssignBSizes, AssignISizes, BubbleISizes};
 use crate::traversal::{PostorderFlowTraversal, PreorderFlowTraversal};
-use profile_traits::time::{self, TimerMetadata, profile};
+use profile_traits::time::{self, profile, TimerMetadata};
 use rayon;
 use servo_config::opts;
 use smallvec::SmallVec;
diff --git a/components/layout/query.rs b/components/layout/query.rs
index 95623c7a98b..7a6a85824ed 100644
--- a/components/layout/query.rs
+++ b/components/layout/query.rs
@@ -7,27 +7,29 @@
 use app_units::Au;
 use crate::construct::ConstructionResult;
 use crate::context::LayoutContext;
-use crate::display_list::IndexableText;
 use crate::display_list::items::{DisplayList, OpaqueNode, ScrollOffsetMap};
+use crate::display_list::IndexableText;
 use crate::flow::{Flow, GetBaseFlow};
 use crate::fragment::{Fragment, FragmentBorderBoxIterator, SpecificFragmentInfo};
 use crate::inline::InlineFragmentNodeFlags;
 use crate::opaque_node::OpaqueNodeMethods;
 use crate::sequential;
 use crate::wrapper::LayoutNodeLayoutData;
-use euclid::{Point2D, Vector2D, Rect, Size2D};
+use euclid::{Point2D, Rect, Size2D, Vector2D};
 use ipc_channel::ipc::IpcSender;
 use msg::constellation_msg::PipelineId;
-use script_layout_interface::{LayoutElementType, LayoutNodeType};
-use script_layout_interface::StyleData;
+use script_layout_interface::rpc::TextIndexResponse;
 use script_layout_interface::rpc::{ContentBoxResponse, ContentBoxesResponse, LayoutRPC};
 use script_layout_interface::rpc::{NodeGeometryResponse, NodeScrollIdResponse};
 use script_layout_interface::rpc::{OffsetParentResponse, ResolvedStyleResponse, StyleResponse};
-use script_layout_interface::rpc::TextIndexResponse;
-use script_layout_interface::wrapper_traits::{LayoutNode, ThreadSafeLayoutElement, ThreadSafeLayoutNode};
+use script_layout_interface::wrapper_traits::{
+    LayoutNode, ThreadSafeLayoutElement, ThreadSafeLayoutNode,
+};
+use script_layout_interface::StyleData;
+use script_layout_interface::{LayoutElementType, LayoutNodeType};
 use script_traits::LayoutMsg as ConstellationMsg;
 use script_traits::UntrustedNodeAddress;
-use std::cmp::{min, max};
+use std::cmp::{max, min};
 use std::ops::Deref;
 use std::sync::{Arc, Mutex};
 use style::computed_values::display::T as Display;
@@ -35,8 +37,8 @@ use style::computed_values::position::T as Position;
 use style::computed_values::visibility::T as Visibility;
 use style::context::{StyleContext, ThreadLocalStyleContext};
 use style::dom::TElement;
-use style::logical_geometry::{WritingMode, BlockFlowDirection, InlineBaseDirection};
-use style::properties::{style_structs, PropertyId, PropertyDeclarationId, LonghandId};
+use style::logical_geometry::{BlockFlowDirection, InlineBaseDirection, WritingMode};
+use style::properties::{style_structs, LonghandId, PropertyDeclarationId, PropertyId};
 use style::selector_parser::PseudoElement;
 use style_traits::ToCss;
 use webrender_api::ExternalScrollId;
diff --git a/components/layout/sequential.rs b/components/layout/sequential.rs
index b35bba206b2..3203dee5e49 100644
--- a/components/layout/sequential.rs
+++ b/components/layout/sequential.rs
@@ -8,8 +8,8 @@ use app_units::Au;
 use crate::context::LayoutContext;
 use crate::display_list::{DisplayListBuildState, StackingContextCollectionState};
 use crate::floats::SpeculatedFloatPlacement;
-use crate::flow::{Flow, ImmutableFlowUtils, FlowFlags, GetBaseFlow};
-use crate::fragment::{FragmentBorderBoxIterator, CoordinateSystem};
+use crate::flow::{Flow, FlowFlags, GetBaseFlow, ImmutableFlowUtils};
+use crate::fragment::{CoordinateSystem, FragmentBorderBoxIterator};
 use crate::generated_content::ResolveGeneratedContent;
 use crate::incremental::RelayoutMode;
 use crate::traversal::{AssignBSizes, AssignISizes, BubbleISizes, BuildDisplayList};
diff --git a/components/layout/table.rs b/components/layout/table.rs
index f167f74911e..4f28b22e6f6 100644
--- a/components/layout/table.rs
+++ b/components/layout/table.rs
@@ -9,8 +9,13 @@ use crate::block::{BlockFlow, CandidateBSizeIterator, ISizeAndMarginsComputer};
 use crate::block::{ISizeConstraintInput, ISizeConstraintSolution};
 use crate::context::LayoutContext;
 use crate::display_list::{BlockFlowDisplayListBuilding, BorderPaintingMode};
-use crate::display_list::{DisplayListBuildState, StackingContextCollectionFlags, StackingContextCollectionState};
-use crate::flow::{BaseFlow, EarlyAbsolutePositionInfo, Flow, FlowClass, ImmutableFlowUtils, GetBaseFlow, OpaqueFlow};
+use crate::display_list::{
+    DisplayListBuildState, StackingContextCollectionFlags, StackingContextCollectionState,
+};
+use crate::flow::{
+    BaseFlow, EarlyAbsolutePositionInfo, Flow, FlowClass, GetBaseFlow, ImmutableFlowUtils,
+    OpaqueFlow,
+};
 use crate::flow_list::{FlowListIterator, MutFlowListIterator};
 use crate::fragment::{Fragment, FragmentBorderBoxIterator, Overflow};
 use crate::layout_debug;
@@ -25,11 +30,11 @@ use std::{cmp, fmt};
 use style::computed_values::{border_collapse, border_spacing, table_layout};
 use style::context::SharedStyleContext;
 use style::logical_geometry::LogicalSize;
-use style::properties::ComputedValues;
 use style::properties::style_structs::Background;
+use style::properties::ComputedValues;
 use style::servo::restyle_damage::ServoRestyleDamage;
-use style::values::CSSFloat;
 use style::values::computed::LengthOrPercentageOrAuto;
+use style::values::CSSFloat;
 
 #[allow(unsafe_code)]
 unsafe impl crate::flow::HasBaseFlow for TableFlow {}
diff --git a/components/layout/table_row.rs b/components/layout/table_row.rs
index 15d660098bf..5b50b48448e 100644
--- a/components/layout/table_row.rs
+++ b/components/layout/table_row.rs
@@ -9,7 +9,9 @@ use crate::block::{BlockFlow, ISizeAndMarginsComputer};
 use crate::context::LayoutContext;
 use crate::display_list::{BlockFlowDisplayListBuilding, DisplayListBuildState};
 use crate::display_list::{StackingContextCollectionFlags, StackingContextCollectionState};
-use crate::flow::{EarlyAbsolutePositionInfo, Flow, FlowClass, ImmutableFlowUtils, GetBaseFlow, OpaqueFlow};
+use crate::flow::{
+    EarlyAbsolutePositionInfo, Flow, FlowClass, GetBaseFlow, ImmutableFlowUtils, OpaqueFlow,
+};
 use crate::flow_list::MutFlowListIterator;
 use crate::fragment::{Fragment, FragmentBorderBoxIterator, Overflow};
 use crate::layout_debug;
diff --git a/components/layout/table_wrapper.rs b/components/layout/table_wrapper.rs
index cb4a033298c..ad6bee3b4e3 100644
--- a/components/layout/table_wrapper.rs
+++ b/components/layout/table_wrapper.rs
@@ -12,13 +12,17 @@
 //! Hereafter this document is referred to as INTRINSIC.
 
 use app_units::Au;
-use crate::block::{AbsoluteNonReplaced, BlockFlow, FloatNonReplaced, ISizeAndMarginsComputer, ISizeConstraintInput};
+use crate::block::{
+    AbsoluteNonReplaced, BlockFlow, FloatNonReplaced, ISizeAndMarginsComputer, ISizeConstraintInput,
+};
 use crate::block::{ISizeConstraintSolution, MarginsMayCollapseFlag};
 use crate::context::LayoutContext;
-use crate::display_list::{BlockFlowDisplayListBuilding, DisplayListBuildState, StackingContextCollectionFlags};
 use crate::display_list::StackingContextCollectionState;
+use crate::display_list::{
+    BlockFlowDisplayListBuilding, DisplayListBuildState, StackingContextCollectionFlags,
+};
 use crate::floats::FloatKind;
-use crate::flow::{Flow, FlowClass, ImmutableFlowUtils, FlowFlags, OpaqueFlow};
+use crate::flow::{Flow, FlowClass, FlowFlags, ImmutableFlowUtils, OpaqueFlow};
 use crate::fragment::{Fragment, FragmentBorderBoxIterator, Overflow};
 use crate::model::MaybeAuto;
 use crate::table::{ColumnComputedInlineSize, ColumnIntrinsicInlineSize};
@@ -31,8 +35,8 @@ use style::computed_values::{position, table_layout};
 use style::context::SharedStyleContext;
 use style::logical_geometry::{LogicalRect, LogicalSize};
 use style::properties::ComputedValues;
-use style::values::CSSFloat;
 use style::values::computed::LengthOrPercentageOrAuto;
+use style::values::CSSFloat;
 
 #[derive(Clone, Copy, Debug, Serialize)]
 pub enum TableLayout {
diff --git a/components/layout/text.rs b/components/layout/text.rs
index 358a386d887..6ba30eb2cc0 100644
--- a/components/layout/text.rs
+++ b/components/layout/text.rs
@@ -10,7 +10,7 @@ use crate::fragment::{Fragment, ScannedTextFlags};
 use crate::fragment::{ScannedTextFragmentInfo, SpecificFragmentInfo, UnscannedTextFragmentInfo};
 use crate::inline::{InlineFragmentNodeFlags, InlineFragments};
 use crate::linked_list::split_off_head;
-use gfx::font::{FontRef, FontMetrics, RunMetrics, ShapingFlags, ShapingOptions};
+use gfx::font::{FontMetrics, FontRef, RunMetrics, ShapingFlags, ShapingOptions};
 use gfx::text::glyph::ByteIndex;
 use gfx::text::text_run::TextRun;
 use gfx::text::util::{self, CompressionMode};
@@ -26,11 +26,11 @@ use style::computed_values::text_transform::T as TextTransform;
 use style::computed_values::white_space::T as WhiteSpace;
 use style::computed_values::word_break::T as WordBreak;
 use style::logical_geometry::{LogicalSize, WritingMode};
-use style::properties::ComputedValues;
 use style::properties::style_structs::Font as FontStyleStruct;
+use style::properties::ComputedValues;
 use style::values::generics::text::LineHeight;
 use unicode_bidi as bidi;
-use unicode_script::{Script, get_script};
+use unicode_script::{get_script, Script};
 use xi_unicode::LineBreakLeafIter;
 
 /// Returns the concatenated text of a list of unscanned text fragments.
diff --git a/components/layout/traversal.rs b/components/layout/traversal.rs
index c18eeae5112..51888069cac 100644
--- a/components/layout/traversal.rs
+++ b/components/layout/traversal.rs
@@ -7,9 +7,9 @@
 use crate::construct::FlowConstructor;
 use crate::context::LayoutContext;
 use crate::display_list::DisplayListBuildState;
-use crate::flow::{FlowFlags, Flow, GetBaseFlow, ImmutableFlowUtils};
-use crate::wrapper::{GetRawData, LayoutNodeLayoutData};
+use crate::flow::{Flow, FlowFlags, GetBaseFlow, ImmutableFlowUtils};
 use crate::wrapper::ThreadSafeLayoutNodeHelpers;
+use crate::wrapper::{GetRawData, LayoutNodeLayoutData};
 use script_layout_interface::wrapper_traits::{LayoutNode, ThreadSafeLayoutNode};
 use servo_config::opts;
 use style::context::{SharedStyleContext, StyleContext};
@@ -17,8 +17,8 @@ use style::data::ElementData;
 use style::dom::{NodeInfo, TElement, TNode};
 use style::selector_parser::RestyleDamage;
 use style::servo::restyle_damage::ServoRestyleDamage;
-use style::traversal::{DomTraversal, recalc_style_at};
 use style::traversal::PerLevelTraversalData;
+use style::traversal::{recalc_style_at, DomTraversal};
 
 pub struct RecalcStyleAndConstructFlows<'a> {
     context: LayoutContext<'a>,
diff --git a/components/layout/wrapper.rs b/components/layout/wrapper.rs
index 42369c04761..82ffd6be718 100644
--- a/components/layout/wrapper.rs
+++ b/components/layout/wrapper.rs
@@ -32,8 +32,8 @@
 
 use atomic_refcell::{AtomicRef, AtomicRefMut};
 use crate::data::{LayoutData, LayoutDataFlags, StyleAndLayoutData};
-use script_layout_interface::wrapper_traits::{ThreadSafeLayoutElement, ThreadSafeLayoutNode};
 use script_layout_interface::wrapper_traits::GetLayoutData;
+use script_layout_interface::wrapper_traits::{ThreadSafeLayoutElement, ThreadSafeLayoutNode};
 use style::dom::{NodeInfo, TNode};
 use style::selector_parser::RestyleDamage;
 use style::values::computed::counters::ContentItem;
diff --git a/components/layout_thread/dom_wrapper.rs b/components/layout_thread/dom_wrapper.rs
index 4eac43a6a32..21e61d96fff 100644
--- a/components/layout_thread/dom_wrapper.rs
+++ b/components/layout_thread/dom_wrapper.rs
@@ -30,7 +30,7 @@
 
 #![allow(unsafe_code)]
 
-use atomic_refcell::{AtomicRef, AtomicRefMut, AtomicRefCell};
+use atomic_refcell::{AtomicRef, AtomicRefCell, AtomicRefMut};
 use gfx_traits::ByteIndex;
 use html5ever::{LocalName, Namespace};
 use layout::data::StyleAndLayoutData;
@@ -38,19 +38,27 @@ use layout::wrapper::GetRawData;
 use msg::constellation_msg::{BrowsingContextId, PipelineId};
 use net_traits::image::base::{Image, ImageMetadata};
 use range::Range;
+use script::layout_exports::NodeFlags;
+use script::layout_exports::PendingRestyle;
 use script::layout_exports::{CharacterDataTypeId, ElementTypeId, HTMLElementTypeId, NodeTypeId};
 use script::layout_exports::{Document, Element, Node, Text};
 use script::layout_exports::{LayoutCharacterDataHelpers, LayoutDocumentHelpers};
-use script::layout_exports::{LayoutElementHelpers, LayoutNodeHelpers, LayoutDom, RawLayoutElementHelpers};
-use script::layout_exports::NodeFlags;
-use script::layout_exports::PendingRestyle;
-use script_layout_interface::{HTMLCanvasData, HTMLMediaData, LayoutNodeType, OpaqueStyleAndLayoutData};
+use script::layout_exports::{
+    LayoutDom, LayoutElementHelpers, LayoutNodeHelpers, RawLayoutElementHelpers,
+};
+use script_layout_interface::wrapper_traits::{
+    DangerousThreadSafeLayoutNode, GetLayoutData, LayoutNode,
+};
+use script_layout_interface::wrapper_traits::{
+    PseudoElementType, ThreadSafeLayoutElement, ThreadSafeLayoutNode,
+};
+use script_layout_interface::{
+    HTMLCanvasData, HTMLMediaData, LayoutNodeType, OpaqueStyleAndLayoutData,
+};
 use script_layout_interface::{SVGSVGData, StyleData, TrustedNodeAddress};
-use script_layout_interface::wrapper_traits::{DangerousThreadSafeLayoutNode, GetLayoutData, LayoutNode};
-use script_layout_interface::wrapper_traits::{PseudoElementType, ThreadSafeLayoutElement, ThreadSafeLayoutNode};
-use selectors::attr::{AttrSelectorOperation, NamespaceConstraint, CaseSensitivity};
-use selectors::matching::{ElementSelectorFlags, MatchingContext, QuirksMode};
+use selectors::attr::{AttrSelectorOperation, CaseSensitivity, NamespaceConstraint};
 use selectors::matching::VisitedHandlingMode;
+use selectors::matching::{ElementSelectorFlags, MatchingContext, QuirksMode};
 use selectors::sink::Push;
 use servo_arc::{Arc, ArcBorrow};
 use servo_atoms::Atom;
@@ -60,9 +68,8 @@ use std::fmt::Debug;
 use std::hash::{Hash, Hasher};
 use std::marker::PhantomData;
 use std::ptr::NonNull;
-use std::sync::Arc as StdArc;
 use std::sync::atomic::Ordering;
-use style::CaseSensitivityExt;
+use std::sync::Arc as StdArc;
 use style::applicable_declarations::ApplicableDeclarationBlock;
 use style::attr::AttrValue;
 use style::context::SharedStyleContext;
@@ -72,11 +79,12 @@ use style::dom::{TDocument, TElement, TNode, TShadowRoot};
 use style::element_state::*;
 use style::font_metrics::ServoMetricsProvider;
 use style::properties::{ComputedValues, PropertyDeclarationBlock};
-use style::selector_parser::{AttrValue as SelectorAttrValue, NonTSPseudoClass, Lang};
-use style::selector_parser::{PseudoElement, SelectorImpl, extended_filtering};
-use style::shared_lock::{SharedRwLock as StyleSharedRwLock, Locked as StyleLocked};
+use style::selector_parser::{extended_filtering, PseudoElement, SelectorImpl};
+use style::selector_parser::{AttrValue as SelectorAttrValue, Lang, NonTSPseudoClass};
+use style::shared_lock::{Locked as StyleLocked, SharedRwLock as StyleSharedRwLock};
 use style::str::is_whitespace;
 use style::stylist::CascadeData;
+use style::CaseSensitivityExt;
 
 pub unsafe fn drop_style_and_layout_data(data: OpaqueStyleAndLayoutData) {
     let ptr = data.ptr.as_ptr() as *mut StyleData;
@@ -664,7 +672,7 @@ impl<'le> ServoLayoutElement<'le> {
     }
 
     pub unsafe fn note_dirty_descendant(&self) {
-        use ::selectors::Element;
+        use selectors::Element;
 
         let mut current = Some(*self);
         while let Some(el) = current {
@@ -1132,7 +1140,7 @@ where
 {
     type Item = ConcreteNode;
     fn next(&mut self) -> Option<ConcreteNode> {
-        use ::selectors::Element;
+        use selectors::Element;
         match self.parent_node.get_pseudo_element_type() {
             PseudoElementType::Before | PseudoElementType::After => None,
 
diff --git a/components/layout_thread/lib.rs b/components/layout_thread/lib.rs
index ca5bd40a313..bf10a795732 100644
--- a/components/layout_thread/lib.rs
+++ b/components/layout_thread/lib.rs
@@ -55,8 +55,8 @@ extern crate webrender_api;
 mod dom_wrapper;
 
 use app_units::Au;
-use crate::dom_wrapper::{ServoLayoutElement, ServoLayoutDocument, ServoLayoutNode};
 use crate::dom_wrapper::drop_style_and_layout_data;
+use crate::dom_wrapper::{ServoLayoutDocument, ServoLayoutElement, ServoLayoutNode};
 use embedder_traits::resources::{self, Resource};
 use euclid::{Point2D, Rect, Size2D, TypedScale, TypedSize2D};
 use fnv::FnvHashMap;
@@ -64,28 +64,34 @@ use fxhash::FxHashMap;
 use gfx::font;
 use gfx::font_cache_thread::FontCacheThread;
 use gfx::font_context;
-use gfx_traits::{Epoch, node_id_from_scroll_id};
+use gfx_traits::{node_id_from_scroll_id, Epoch};
 use histogram::Histogram;
 use ipc_channel::ipc::{self, IpcReceiver, IpcSender};
 use layout::animation;
 use layout::construct::ConstructionResult;
+use layout::context::malloc_size_of_persistent_local_context;
 use layout::context::LayoutContext;
 use layout::context::RegisteredPainter;
 use layout::context::RegisteredPainters;
-use layout::context::malloc_size_of_persistent_local_context;
-use layout::display_list::{IndexableText, ToLayout, WebRenderDisplayListConverter};
 use layout::display_list::items::{OpaqueNode, WebRenderImageInfo};
+use layout::display_list::{IndexableText, ToLayout, WebRenderDisplayListConverter};
 use layout::flow::{Flow, GetBaseFlow, ImmutableFlowUtils, MutableOwnedFlowUtils};
 use layout::flow_ref::FlowRef;
 use layout::incremental::{LayoutDamageComputation, RelayoutMode, SpecialRestyleDamage};
 use layout::layout_debug;
 use layout::parallel;
-use layout::query::{LayoutRPCImpl, LayoutThreadData, process_content_box_request, process_content_boxes_request};
+use layout::query::{
+    process_content_box_request, process_content_boxes_request, LayoutRPCImpl, LayoutThreadData,
+};
 use layout::query::{process_element_inner_text_query, process_node_geometry_request};
 use layout::query::{process_node_scroll_area_request, process_node_scroll_id_request};
-use layout::query::{process_offset_parent_query, process_resolved_style_request, process_style_query};
+use layout::query::{
+    process_offset_parent_query, process_resolved_style_request, process_style_query,
+};
 use layout::sequential;
-use layout::traversal::{ComputeStackingRelativePositions, PreorderFlowTraversal, RecalcStyleAndConstructFlows};
+use layout::traversal::{
+    ComputeStackingRelativePositions, PreorderFlowTraversal, RecalcStyleAndConstructFlows,
+};
 use layout::wrapper::LayoutNodeLayoutData;
 use layout_traits::LayoutThreadFactory;
 use libc::c_void;
@@ -96,21 +102,21 @@ use msg::constellation_msg::TopLevelBrowsingContextId;
 use net_traits::image_cache::{ImageCache, UsePlaceholder};
 use parking_lot::RwLock;
 use profile_traits::mem::{self, Report, ReportKind, ReportsChan};
-use profile_traits::time::{self, TimerMetadata, profile};
+use profile_traits::time::{self, profile, TimerMetadata};
 use profile_traits::time::{TimerMetadataFrameType, TimerMetadataReflowType};
 use script_layout_interface::message::{Msg, NewLayoutThreadInfo, NodesFromPointQueryType, Reflow};
-use script_layout_interface::message::{ReflowComplete, QueryMsg, ReflowGoal, ScriptReflow};
-use script_layout_interface::rpc::{LayoutRPC, StyleResponse, OffsetParentResponse};
+use script_layout_interface::message::{QueryMsg, ReflowComplete, ReflowGoal, ScriptReflow};
 use script_layout_interface::rpc::TextIndexResponse;
+use script_layout_interface::rpc::{LayoutRPC, OffsetParentResponse, StyleResponse};
 use script_layout_interface::wrapper_traits::LayoutNode;
+use script_traits::Painter;
 use script_traits::{ConstellationControlMsg, LayoutControlMsg, LayoutMsg as ConstellationMsg};
 use script_traits::{DrawAPaintImageResult, PaintWorkletError};
 use script_traits::{ScrollState, UntrustedNodeAddress};
-use script_traits::Painter;
 use selectors::Element;
 use servo_arc::Arc as ServoArc;
 use servo_atoms::Atom;
-use servo_channel::{Receiver, Sender, channel, route_ipc_receiver_to_new_servo_receiver};
+use servo_channel::{channel, route_ipc_receiver_to_new_servo_receiver, Receiver, Sender};
 use servo_config::opts;
 use servo_config::prefs::PREFS;
 use servo_geometry::MaxRect;
@@ -121,8 +127,8 @@ use std::collections::HashMap;
 use std::mem as std_mem;
 use std::ops::{Deref, DerefMut};
 use std::process;
-use std::sync::{Arc, Mutex, MutexGuard};
 use std::sync::atomic::{AtomicUsize, Ordering};
+use std::sync::{Arc, Mutex, MutexGuard};
 use std::thread;
 use style::animation::Animation;
 use style::context::{QuirksMode, RegisteredSpeculativePainter, RegisteredSpeculativePainters};
@@ -137,7 +143,9 @@ use style::properties::PropertyId;
 use style::selector_parser::SnapshotMap;
 use style::servo::restyle_damage::ServoRestyleDamage;
 use style::shared_lock::{SharedRwLock, SharedRwLockReadGuard, StylesheetGuards};
-use style::stylesheets::{Origin, Stylesheet, DocumentStyleSheet, StylesheetInDocument, UserAgentStylesheets};
+use style::stylesheets::{
+    DocumentStyleSheet, Origin, Stylesheet, StylesheetInDocument, UserAgentStylesheets,
+};
 use style::stylist::Stylist;
 use style::thread_state::{self, ThreadState};
 use style::timer::Timer;
diff --git a/components/layout_traits/lib.rs b/components/layout_traits/lib.rs
index 646706e7717..9fb431c8e2e 100644
--- a/components/layout_traits/lib.rs
+++ b/components/layout_traits/lib.rs
@@ -27,8 +27,8 @@ use msg::constellation_msg::PipelineId;
 use msg::constellation_msg::TopLevelBrowsingContextId;
 use net_traits::image_cache::ImageCache;
 use profile_traits::{mem, time};
-use script_traits::{ConstellationControlMsg, LayoutControlMsg};
 use script_traits::LayoutMsg as ConstellationMsg;
+use script_traits::{ConstellationControlMsg, LayoutControlMsg};
 use servo_channel::{Receiver, Sender};
 use servo_url::ServoUrl;
 use std::sync::Arc;
diff --git a/components/malloc_size_of/lib.rs b/components/malloc_size_of/lib.rs
index 540ff8bffd5..69dc48ce30d 100644
--- a/components/malloc_size_of/lib.rs
+++ b/components/malloc_size_of/lib.rs
@@ -82,8 +82,8 @@ extern crate xml5ever;
 use serde_bytes::ByteBuf;
 use std::hash::{BuildHasher, Hash};
 use std::mem::size_of;
-use std::ops::{Deref, DerefMut};
 use std::ops::Range;
+use std::ops::{Deref, DerefMut};
 use std::os::raw::c_void;
 use void::Void;
 
diff --git a/components/metrics/lib.rs b/components/metrics/lib.rs
index f0411cb7627..f83a80b9302 100644
--- a/components/metrics/lib.rs
+++ b/components/metrics/lib.rs
@@ -16,11 +16,11 @@ extern crate servo_config;
 extern crate servo_url;
 extern crate time;
 
-use gfx_traits::{Epoch, DisplayList};
+use gfx_traits::{DisplayList, Epoch};
 use ipc_channel::ipc::IpcSender;
 use msg::constellation_msg::PipelineId;
-use profile_traits::time::{ProfilerChan, ProfilerCategory, send_profile_data};
 use profile_traits::time::TimerMetadata;
+use profile_traits::time::{send_profile_data, ProfilerCategory, ProfilerChan};
 use script_traits::{ConstellationControlMsg, LayoutMsg, ProgressiveWebMetricType};
 use servo_config::opts;
 use servo_url::ServoUrl;
diff --git a/components/net/blob_loader.rs b/components/net/blob_loader.rs
index 94e35ee4782..2afed16ad7f 100644
--- a/components/net/blob_loader.rs
+++ b/components/net/blob_loader.rs
@@ -5,13 +5,13 @@
 use crate::filemanager_thread::FileManager;
 use headers_core::HeaderMapExt;
 use headers_ext::{ContentLength, ContentType};
-use http::HeaderMap;
 use http::header::{self, HeaderValue};
+use http::HeaderMap;
 use ipc_channel::ipc;
 use mime::{self, Mime};
-use net_traits::{http_percent_encode, NetworkError};
 use net_traits::blob_url_store::parse_blob_url;
 use net_traits::filemanager_thread::ReadFileProgress;
+use net_traits::{http_percent_encode, NetworkError};
 use servo_url::ServoUrl;
 
 // TODO: Check on GET
diff --git a/components/net/connector.rs b/components/net/connector.rs
index e347862d2c9..38693e70e24 100644
--- a/components/net/connector.rs
+++ b/components/net/connector.rs
@@ -5,17 +5,17 @@
 use crate::hosts::replace_host;
 use crate::http_loader::Decoder;
 use flate2::read::GzDecoder;
-use hyper::{Body, Client};
 use hyper::body::Payload;
-use hyper::client::HttpConnector as HyperHttpConnector;
 use hyper::client::connect::{Connect, Destination};
+use hyper::client::HttpConnector as HyperHttpConnector;
 use hyper::rt::Future;
+use hyper::{Body, Client};
 use hyper_openssl::HttpsConnector;
 use openssl::ssl::{SslConnector, SslConnectorBuilder, SslMethod, SslOptions};
 use openssl::x509;
 use std::io::{Cursor, Read};
-use tokio::prelude::{Async, Stream};
 use tokio::prelude::future::Executor;
+use tokio::prelude::{Async, Stream};
 
 pub const BUF_SIZE: usize = 32768;
 
diff --git a/components/net/cookie.rs b/components/net/cookie.rs
index d7d68196d4a..5b9089cc1d3 100644
--- a/components/net/cookie.rs
+++ b/components/net/cookie.rs
@@ -7,12 +7,12 @@
 
 use crate::cookie_rs;
 use hyper_serde::{self, Serde};
-use net_traits::CookieSource;
 use net_traits::pub_domains::is_pub_domain;
+use net_traits::CookieSource;
 use servo_url::ServoUrl;
 use std::borrow::ToOwned;
 use std::net::{Ipv4Addr, Ipv6Addr};
-use time::{Tm, now, at, Duration};
+use time::{at, now, Duration, Tm};
 
 /// A stored cookie that wraps the definition in cookie-rs. This is used to implement
 /// various behaviours defined in the spec that rely on an associated request URL,
diff --git a/components/net/cookie_storage.rs b/components/net/cookie_storage.rs
index 274af9068a5..7eefb164439 100644
--- a/components/net/cookie_storage.rs
+++ b/components/net/cookie_storage.rs
@@ -7,8 +7,8 @@
 
 use crate::cookie::Cookie;
 use crate::cookie_rs;
-use net_traits::CookieSource;
 use net_traits::pub_domains::reg_suffix;
+use net_traits::CookieSource;
 use servo_url::ServoUrl;
 use std::cmp::Ordering;
 use std::collections::HashMap;
diff --git a/components/net/data_loader.rs b/components/net/data_loader.rs
index 3cd282bb1ed..9f0e1627ea3 100644
--- a/components/net/data_loader.rs
+++ b/components/net/data_loader.rs
@@ -5,8 +5,8 @@
 use base64;
 use mime::Mime;
 use servo_url::ServoUrl;
-use url::Position;
 use url::percent_encoding::percent_decode;
+use url::Position;
 
 pub enum DecodeError {
     InvalidDataUri,
diff --git a/components/net/fetch/methods.rs b/components/net/fetch/methods.rs
index a0ca76ff802..0ad92f527ef 100644
--- a/components/net/fetch/methods.rs
+++ b/components/net/fetch/methods.rs
@@ -6,7 +6,7 @@ use crate::blob_loader::load_blob_sync;
 use crate::data_loader::decode;
 use crate::fetch::cors_cache::CorsCache;
 use crate::filemanager_thread::FileManager;
-use crate::http_loader::{HttpState, determine_request_referrer, http_fetch};
+use crate::http_loader::{determine_request_referrer, http_fetch, HttpState};
 use crate::http_loader::{set_default_accept, set_default_accept_language};
 use crate::subresource_integrity::is_response_integrity_valid;
 use devtools_traits::DevtoolsControlMsg;
@@ -18,20 +18,20 @@ use hyper::StatusCode;
 use ipc_channel::ipc::IpcReceiver;
 use mime::{self, Mime};
 use mime_guess::guess_mime_type;
-use net_traits::{FetchTaskTarget, NetworkError, ReferrerPolicy};
 use net_traits::request::{CredentialsMode, Destination, Referrer, Request, RequestMode};
-use net_traits::request::{ResponseTainting, Origin, Window};
+use net_traits::request::{Origin, ResponseTainting, Window};
 use net_traits::response::{Response, ResponseBody, ResponseType};
-use servo_channel::{channel, Sender, Receiver};
+use net_traits::{FetchTaskTarget, NetworkError, ReferrerPolicy};
+use servo_channel::{channel, Receiver, Sender};
 use servo_url::ServoUrl;
 use std::borrow::Cow;
 use std::fs::File;
-use std::io::{BufReader, BufRead, Seek, SeekFrom};
+use std::io::{BufRead, BufReader, Seek, SeekFrom};
 use std::mem;
 use std::ops::Bound;
 use std::str;
-use std::sync::{Arc, Mutex};
 use std::sync::atomic::Ordering;
+use std::sync::{Arc, Mutex};
 use std::thread;
 
 lazy_static! {
diff --git a/components/net/filemanager_thread.rs b/components/net/filemanager_thread.rs
index f1e3b3e61df..966f8a21bcb 100644
--- a/components/net/filemanager_thread.rs
+++ b/components/net/filemanager_thread.rs
@@ -7,15 +7,17 @@ use ipc_channel::ipc::{self, IpcSender};
 use mime_guess::guess_mime_type_opt;
 use net_traits::blob_url_store::{BlobBuf, BlobURLStoreError};
 use net_traits::filemanager_thread::{FileManagerResult, FileManagerThreadMsg, FileOrigin};
-use net_traits::filemanager_thread::{FileManagerThreadError, ReadFileProgress, RelativePos, SelectedFile};
+use net_traits::filemanager_thread::{
+    FileManagerThreadError, ReadFileProgress, RelativePos, SelectedFile,
+};
 use servo_config::prefs::PREFS;
 use std::collections::HashMap;
 use std::fs::File;
 use std::io::{Read, Seek, SeekFrom};
 use std::ops::Index;
 use std::path::{Path, PathBuf};
-use std::sync::{Arc, RwLock};
 use std::sync::atomic::{self, AtomicBool, AtomicUsize, Ordering};
+use std::sync::{Arc, RwLock};
 use std::thread;
 use url::Url;
 use uuid::Uuid;
diff --git a/components/net/hsts.rs b/components/net/hsts.rs
index bcf6ee02747..693869af0db 100644
--- a/components/net/hsts.rs
+++ b/components/net/hsts.rs
@@ -3,8 +3,8 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use embedder_traits::resources::{self, Resource};
-use net_traits::IncludeSubdomains;
 use net_traits::pub_domains::reg_suffix;
+use net_traits::IncludeSubdomains;
 use serde_json;
 use servo_url::ServoUrl;
 use std::collections::HashMap;
diff --git a/components/net/http_cache.rs b/components/net/http_cache.rs
index b234389d69b..ab7f99f1e0e 100644
--- a/components/net/http_cache.rs
+++ b/components/net/http_cache.rs
@@ -10,22 +10,24 @@
 use crate::fetch::methods::{Data, DoneChannel};
 use headers_core::HeaderMapExt;
 use headers_ext::{CacheControl, ContentRange, Expires, LastModified, Pragma, Range, Vary};
-use http::{header, HeaderMap};
 use http::header::HeaderValue;
+use http::{header, HeaderMap};
 use hyper::{Method, StatusCode};
-use malloc_size_of::{MallocSizeOf, MallocSizeOfOps, MallocUnconditionalSizeOf, MallocUnconditionalShallowSizeOf};
 use malloc_size_of::Measurable;
-use net_traits::{Metadata, FetchMetadata};
+use malloc_size_of::{
+    MallocSizeOf, MallocSizeOfOps, MallocUnconditionalShallowSizeOf, MallocUnconditionalSizeOf,
+};
 use net_traits::request::Request;
 use net_traits::response::{HttpsState, Response, ResponseBody};
+use net_traits::{FetchMetadata, Metadata};
 use servo_arc::Arc;
-use servo_channel::{Sender, channel};
+use servo_channel::{channel, Sender};
 use servo_config::prefs::PREFS;
 use servo_url::ServoUrl;
 use std::collections::HashMap;
 use std::ops::Bound;
-use std::sync::Mutex;
 use std::sync::atomic::{AtomicBool, Ordering};
+use std::sync::Mutex;
 use std::time::SystemTime;
 use time;
 use time::{Duration, Timespec, Tm};
diff --git a/components/net/http_loader.rs b/components/net/http_loader.rs
index 2ca55d4ffa0..8898fdf1924 100644
--- a/components/net/http_loader.rs
+++ b/components/net/http_loader.rs
@@ -4,38 +4,47 @@
 
 use brotli::Decompressor;
 use bytes::Bytes;
-use crate::connector::{BUF_SIZE, Connector, create_http_client, WrappedBody};
+use crate::connector::{create_http_client, Connector, WrappedBody, BUF_SIZE};
 use crate::cookie;
 use crate::cookie_storage::CookieStorage;
 use crate::fetch::cors_cache::CorsCache;
+use crate::fetch::methods::{
+    is_cors_safelisted_method, is_cors_safelisted_request_header, main_fetch,
+};
 use crate::fetch::methods::{Data, DoneChannel, FetchContext, Target};
-use crate::fetch::methods::{is_cors_safelisted_request_header, is_cors_safelisted_method, main_fetch};
 use crate::hsts::HstsList;
 use crate::http_cache::HttpCache;
 use crate::resource_thread::AuthCache;
-use devtools_traits::{ChromeToDevtoolsControlMsg, DevtoolsControlMsg, HttpRequest as DevtoolsHttpRequest};
+use devtools_traits::{
+    ChromeToDevtoolsControlMsg, DevtoolsControlMsg, HttpRequest as DevtoolsHttpRequest,
+};
 use devtools_traits::{HttpResponse as DevtoolsHttpResponse, NetworkEvent};
 use flate2::read::{DeflateDecoder, GzDecoder};
 use headers_core::HeaderMapExt;
 use headers_ext::{AccessControlAllowCredentials, AccessControlAllowHeaders};
-use headers_ext::{AccessControlAllowMethods, AccessControlRequestHeaders, AccessControlRequestMethod, Authorization};
+use headers_ext::{
+    AccessControlAllowMethods, AccessControlRequestHeaders, AccessControlRequestMethod,
+    Authorization,
+};
 use headers_ext::{AccessControlAllowOrigin, AccessControlMaxAge, Basic};
 use headers_ext::{CacheControl, ContentEncoding, ContentLength};
-use headers_ext::{Host, IfModifiedSince, LastModified, Origin as HyperOrigin, Pragma, Referer, UserAgent};
-use http::{HeaderMap, Request as HyperRequest};
+use headers_ext::{
+    Host, IfModifiedSince, LastModified, Origin as HyperOrigin, Pragma, Referer, UserAgent,
+};
 use http::header::{self, HeaderName, HeaderValue};
 use http::uri::Authority;
-use hyper::{Body, Client, Method, StatusCode, Response as HyperResponse};
+use http::{HeaderMap, Request as HyperRequest};
+use hyper::{Body, Client, Method, Response as HyperResponse, StatusCode};
 use hyper_serde::Serde;
 use log;
 use mime;
 use msg::constellation_msg::{HistoryStateId, PipelineId};
-use net_traits::{CookieSource, FetchMetadata, NetworkError, ReferrerPolicy};
 use net_traits::quality::{quality_to_value, Quality, QualityItem};
 use net_traits::request::{CacheMode, CredentialsMode, Destination, Origin};
 use net_traits::request::{RedirectMode, Referrer, Request, RequestMode};
 use net_traits::request::{ResponseTainting, ServiceWorkersMode};
 use net_traits::response::{HttpsState, Response, ResponseBody, ResponseType};
+use net_traits::{CookieSource, FetchMetadata, NetworkError, ReferrerPolicy};
 use openssl::ssl::SslConnectorBuilder;
 use servo_channel::{channel, Sender};
 use servo_url::{ImmutableOrigin, ServoUrl};
@@ -50,7 +59,7 @@ use std::sync::Mutex;
 use std::sync::RwLock;
 use std::time::{Duration, SystemTime};
 use time::{self, Tm};
-use tokio::prelude::{Future, future, Stream};
+use tokio::prelude::{future, Future, Stream};
 use tokio::runtime::Runtime;
 use uuid;
 
diff --git a/components/net/image_cache.rs b/components/net/image_cache.rs
index 4272bdcb6a3..8dc194a10d1 100644
--- a/components/net/image_cache.rs
+++ b/components/net/image_cache.rs
@@ -4,15 +4,15 @@
 
 use embedder_traits::resources::{self, Resource};
 use immeta::load_from_buf;
-use net_traits::{FetchMetadata, FetchResponseMsg, NetworkError};
-use net_traits::image::base::{Image, ImageMetadata, PixelFormat, load_from_memory};
+use net_traits::image::base::{load_from_memory, Image, ImageMetadata, PixelFormat};
 use net_traits::image_cache::{CanRequestImages, ImageCache, ImageResponder};
 use net_traits::image_cache::{ImageOrMetadataAvailable, ImageResponse, ImageState};
 use net_traits::image_cache::{PendingImageId, UsePlaceholder};
+use net_traits::{FetchMetadata, FetchResponseMsg, NetworkError};
 use pixels;
 use servo_url::ServoUrl;
-use std::collections::HashMap;
 use std::collections::hash_map::Entry::{Occupied, Vacant};
+use std::collections::HashMap;
 use std::io;
 use std::mem;
 use std::sync::{Arc, Mutex};
diff --git a/components/net/lib.rs b/components/net/lib.rs
index 9fbb9415ab6..e4373edee33 100644
--- a/components/net/lib.rs
+++ b/components/net/lib.rs
@@ -76,6 +76,6 @@ pub mod fetch {
 
 /// A module for re-exports of items used in unit tests.
 pub mod test {
+    pub use crate::hosts::{parse_hostsfile, replace_host_table};
     pub use crate::http_loader::HttpState;
-    pub use crate::hosts::{replace_host_table, parse_hostsfile};
 }
diff --git a/components/net/resource_thread.rs b/components/net/resource_thread.rs
index 6c4cc78479a..9793fcb862d 100644
--- a/components/net/resource_thread.rs
+++ b/components/net/resource_thread.rs
@@ -8,28 +8,28 @@ use crate::cookie;
 use crate::cookie_rs;
 use crate::cookie_storage::CookieStorage;
 use crate::fetch::cors_cache::CorsCache;
-use crate::fetch::methods::{CancellationListener, FetchContext, fetch};
+use crate::fetch::methods::{fetch, CancellationListener, FetchContext};
 use crate::filemanager_thread::FileManager;
 use crate::hsts::HstsList;
 use crate::http_cache::HttpCache;
-use crate::http_loader::{HANDLE, HttpState, http_redirect_fetch};
+use crate::http_loader::{http_redirect_fetch, HttpState, HANDLE};
 use crate::storage_thread::StorageThreadFactory;
 use crate::websocket_loader;
 use devtools_traits::DevtoolsControlMsg;
-use embedder_traits::EmbedderProxy;
 use embedder_traits::resources::{self, Resource};
+use embedder_traits::EmbedderProxy;
 use hyper_serde::Serde;
 use ipc_channel::ipc::{self, IpcReceiver, IpcReceiverSet, IpcSender};
 use malloc_size_of::{MallocSizeOf, MallocSizeOfOps};
-use net_traits::{CookieSource, CoreResourceThread};
-use net_traits::{CoreResourceMsg, CustomResponseMediator, FetchChannels};
-use net_traits::{FetchResponseMsg, ResourceThreads, WebSocketDomAction};
-use net_traits::WebSocketNetworkEvent;
 use net_traits::request::{Request, RequestInit};
 use net_traits::response::{Response, ResponseInit};
 use net_traits::storage_thread::StorageThreadMsg;
-use profile_traits::mem::{Report, ReportsChan, ReportKind};
+use net_traits::WebSocketNetworkEvent;
+use net_traits::{CookieSource, CoreResourceThread};
+use net_traits::{CoreResourceMsg, CustomResponseMediator, FetchChannels};
+use net_traits::{FetchResponseMsg, ResourceThreads, WebSocketDomAction};
 use profile_traits::mem::ProfilerChan as MemProfilerChan;
+use profile_traits::mem::{Report, ReportKind, ReportsChan};
 use profile_traits::time::ProfilerChan;
 use serde::{Deserialize, Serialize};
 use serde_json;
diff --git a/components/net/subresource_integrity.rs b/components/net/subresource_integrity.rs
index 6abeb39149c..de90fea9338 100644
--- a/components/net/subresource_integrity.rs
+++ b/components/net/subresource_integrity.rs
@@ -4,7 +4,7 @@
 
 use base64;
 use net_traits::response::{Response, ResponseBody, ResponseType};
-use openssl::hash::{MessageDigest, hash};
+use openssl::hash::{hash, MessageDigest};
 use std::iter::Filter;
 use std::str::Split;
 use std::sync::MutexGuard;
diff --git a/components/net/tests/data_loader.rs b/components/net/tests/data_loader.rs
index 5ab5c68943f..9996aed73e6 100644
--- a/components/net/tests/data_loader.rs
+++ b/components/net/tests/data_loader.rs
@@ -7,9 +7,9 @@ use headers_core::HeaderMapExt;
 use headers_ext::ContentType;
 use hyper_serde::Serde;
 use mime::{self, Mime};
-use net_traits::{FetchMetadata, FilteredMetadata, NetworkError};
 use net_traits::request::{Origin, Request};
 use net_traits::response::ResponseBody;
+use net_traits::{FetchMetadata, FilteredMetadata, NetworkError};
 use servo_url::ServoUrl;
 use std::ops::Deref;
 
diff --git a/components/net/tests/fetch.rs b/components/net/tests/fetch.rs
index a11d068e9ce..2414bb153e9 100644
--- a/components/net/tests/fetch.rs
+++ b/components/net/tests/fetch.rs
@@ -2,21 +2,28 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::{DEFAULT_USER_AGENT, new_fetch_context, create_embedder_proxy, fetch, make_server, make_ssl_server};
 use crate::fetch_with_context;
 use crate::fetch_with_cors_cache;
 use crate::http_loader::{expect_devtools_http_request, expect_devtools_http_response};
+use crate::{
+    create_embedder_proxy, fetch, make_server, make_ssl_server, new_fetch_context,
+    DEFAULT_USER_AGENT,
+};
 use devtools_traits::HttpRequest as DevtoolsHttpRequest;
 use devtools_traits::HttpResponse as DevtoolsHttpResponse;
 use headers_core::HeaderMapExt;
-use headers_ext::{AccessControlAllowCredentials, AccessControlAllowHeaders, AccessControlAllowOrigin};
+use headers_ext::{
+    AccessControlAllowCredentials, AccessControlAllowHeaders, AccessControlAllowOrigin,
+};
 use headers_ext::{AccessControlAllowMethods, AccessControlMaxAge};
-use headers_ext::{CacheControl, ContentLength, ContentType, Expires, Host, LastModified, Pragma, UserAgent};
-use http::{Method, StatusCode};
+use headers_ext::{
+    CacheControl, ContentLength, ContentType, Expires, Host, LastModified, Pragma, UserAgent,
+};
 use http::header::{self, HeaderMap, HeaderName, HeaderValue};
 use http::uri::Authority;
-use hyper::{Request as HyperRequest, Response as HyperResponse};
+use http::{Method, StatusCode};
 use hyper::body::Body;
+use hyper::{Request as HyperRequest, Response as HyperResponse};
 use mime::{self, Mime};
 use msg::constellation_msg::TEST_PIPELINE_ID;
 use net::connector::create_ssl_connector_builder;
@@ -25,20 +32,20 @@ use net::fetch::methods::{CancellationListener, FetchContext};
 use net::filemanager_thread::FileManager;
 use net::hsts::HstsEntry;
 use net::test::HttpState;
+use net_traits::request::{Destination, Origin, RedirectMode, Referrer, Request, RequestMode};
+use net_traits::response::{CacheState, Response, ResponseBody, ResponseType};
 use net_traits::IncludeSubdomains;
 use net_traits::NetworkError;
 use net_traits::ReferrerPolicy;
-use net_traits::request::{Destination, Origin, RedirectMode, Referrer, Request, RequestMode};
-use net_traits::response::{CacheState, Response, ResponseBody, ResponseType};
 use servo_channel::{channel, Sender};
 use servo_url::{ImmutableOrigin, ServoUrl};
 use std::fs::File;
 use std::io::Read;
 use std::iter::FromIterator;
 use std::path::Path;
-use std::sync::{Arc, Mutex};
 use std::sync::atomic::{AtomicUsize, Ordering};
-use std::time::{SystemTime, Duration};
+use std::sync::{Arc, Mutex};
+use std::time::{Duration, SystemTime};
 
 // TODO write a struct that impls Handler for storing test values
 
diff --git a/components/net/tests/filemanager_thread.rs b/components/net/tests/filemanager_thread.rs
index 35634cad815..50141326722 100644
--- a/components/net/tests/filemanager_thread.rs
+++ b/components/net/tests/filemanager_thread.rs
@@ -7,7 +7,9 @@ use embedder_traits::FilterPattern;
 use ipc_channel::ipc;
 use net::filemanager_thread::FileManager;
 use net_traits::blob_url_store::BlobURLStoreError;
-use net_traits::filemanager_thread::{FileManagerThreadMsg, FileManagerThreadError, ReadFileProgress};
+use net_traits::filemanager_thread::{
+    FileManagerThreadError, FileManagerThreadMsg, ReadFileProgress,
+};
 use servo_config::prefs::{PrefValue, PREFS};
 use std::fs::File;
 use std::io::Read;
diff --git a/components/net/tests/http_loader.rs b/components/net/tests/http_loader.rs
index ee2c12b9981..bc5112f1f58 100644
--- a/components/net/tests/http_loader.rs
+++ b/components/net/tests/http_loader.rs
@@ -7,35 +7,37 @@ use crate::fetch;
 use crate::fetch_with_context;
 use crate::make_server;
 use crate::new_fetch_context;
-use devtools_traits::{ChromeToDevtoolsControlMsg, DevtoolsControlMsg, NetworkEvent};
 use devtools_traits::HttpRequest as DevtoolsHttpRequest;
 use devtools_traits::HttpResponse as DevtoolsHttpResponse;
-use flate2::Compression;
+use devtools_traits::{ChromeToDevtoolsControlMsg, DevtoolsControlMsg, NetworkEvent};
 use flate2::write::{DeflateEncoder, GzEncoder};
+use flate2::Compression;
 use futures::{self, Future, Stream};
 use headers_core::HeaderMapExt;
-use headers_ext::{Authorization, Basic, AccessControlAllowOrigin, ContentLength, Date, Host, Origin};
+use headers_ext::{
+    AccessControlAllowOrigin, Authorization, Basic, ContentLength, Date, Host, Origin,
+};
 use headers_ext::{StrictTransportSecurity, UserAgent};
-use http::{Method, StatusCode};
 use http::header::{self, HeaderMap, HeaderValue};
 use http::uri::Authority;
-use hyper::{Request as HyperRequest, Response as HyperResponse};
+use http::{Method, StatusCode};
 use hyper::body::Body;
+use hyper::{Request as HyperRequest, Response as HyperResponse};
 use msg::constellation_msg::TEST_PIPELINE_ID;
 use net::cookie::Cookie;
 use net::cookie_storage::CookieStorage;
 use net::resource_thread::AuthCacheEntry;
 use net::test::replace_host_table;
-use net_traits::{CookieSource, NetworkError};
-use net_traits::request::{Request, RequestInit, RequestMode, CredentialsMode, Destination};
+use net_traits::request::{CredentialsMode, Destination, Request, RequestInit, RequestMode};
 use net_traits::response::ResponseBody;
+use net_traits::{CookieSource, NetworkError};
 use servo_channel::{channel, Receiver};
-use servo_url::{ServoUrl, ImmutableOrigin};
+use servo_url::{ImmutableOrigin, ServoUrl};
 use std::collections::HashMap;
 use std::io::Write;
 use std::str;
-use std::sync::{Arc, Mutex, RwLock};
 use std::sync::atomic::{AtomicBool, Ordering};
+use std::sync::{Arc, Mutex, RwLock};
 use std::time::Duration;
 
 fn mock_origin() -> ImmutableOrigin {
diff --git a/components/net/tests/main.rs b/components/net/tests/main.rs
index c20c846bf7d..aa7a6aa9cf6 100644
--- a/components/net/tests/main.rs
+++ b/components/net/tests/main.rs
@@ -44,21 +44,21 @@ mod resource_thread;
 mod subresource_integrity;
 
 use devtools_traits::DevtoolsControlMsg;
-use embedder_traits::{EmbedderProxy, EventLoopWaker};
 use embedder_traits::resources::{self, Resource};
+use embedder_traits::{EmbedderProxy, EventLoopWaker};
 use futures::{Future, Stream};
-use hyper::{Body, Request as HyperRequest, Response as HyperResponse};
-use hyper::server::Server as HyperServer;
 use hyper::server::conn::Http;
+use hyper::server::Server as HyperServer;
 use hyper::service::service_fn_ok;
+use hyper::{Body, Request as HyperRequest, Response as HyperResponse};
 use net::connector::create_ssl_connector_builder;
 use net::fetch::cors_cache::CorsCache;
 use net::fetch::methods::{self, CancellationListener, FetchContext};
 use net::filemanager_thread::FileManager;
 use net::test::HttpState;
-use net_traits::FetchTaskTarget;
 use net_traits::request::Request;
 use net_traits::response::Response;
+use net_traits::FetchTaskTarget;
 use openssl::ssl::{SslAcceptor, SslFiletype, SslMethod};
 use servo_channel::{channel, Sender};
 use servo_url::ServoUrl;
diff --git a/components/net/tests/subresource_integrity.rs b/components/net/tests/subresource_integrity.rs
index 7607fc378b7..3cd5ac2b017 100644
--- a/components/net/tests/subresource_integrity.rs
+++ b/components/net/tests/subresource_integrity.rs
@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use net::subresource_integrity::{SriEntry, get_prioritized_hash_function, get_strongest_metadata};
+use net::subresource_integrity::{get_prioritized_hash_function, get_strongest_metadata, SriEntry};
 use net::subresource_integrity::{is_response_integrity_valid, parsed_metadata};
 use net_traits::response::{Response, ResponseBody};
 use servo_url::ServoUrl;
diff --git a/components/net/websocket_loader.rs b/components/net/websocket_loader.rs
index c37555afcb5..85149c60ec0 100644
--- a/components/net/websocket_loader.rs
+++ b/components/net/websocket_loader.rs
@@ -12,20 +12,23 @@ use headers_ext::Host;
 use http::header::{self, HeaderMap, HeaderName, HeaderValue};
 use http::uri::Authority;
 use ipc_channel::ipc::{IpcReceiver, IpcSender};
+use net_traits::request::{RequestInit, RequestMode};
 use net_traits::{CookieSource, MessageData};
 use net_traits::{WebSocketDomAction, WebSocketNetworkEvent};
-use net_traits::request::{RequestInit, RequestMode};
 use openssl::ssl::SslStream;
 use servo_config::opts;
 use servo_url::ServoUrl;
 use std::fs;
-use std::sync::Arc;
 use std::sync::atomic::{AtomicBool, Ordering};
+use std::sync::Arc;
 use std::thread;
 use url::Url;
-use ws::{CloseCode, Factory, Handler, Handshake, Message, Request, Response as WsResponse, Sender, WebSocket};
-use ws::{Error as WebSocketError, ErrorKind as WebSocketErrorKind, Result as WebSocketResult};
 use ws::util::TcpStream;
+use ws::{
+    CloseCode, Factory, Handler, Handshake, Message, Request, Response as WsResponse, Sender,
+    WebSocket,
+};
+use ws::{Error as WebSocketError, ErrorKind as WebSocketErrorKind, Result as WebSocketResult};
 
 /// A client for connecting to a websocket server
 #[derive(Clone)]
diff --git a/components/net_traits/image_cache.rs b/components/net_traits/image_cache.rs
index 6cc70ba245a..6f035187a81 100644
--- a/components/net_traits/image_cache.rs
+++ b/components/net_traits/image_cache.rs
@@ -2,8 +2,8 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::FetchResponseMsg;
 use crate::image::base::{Image, ImageMetadata};
+use crate::FetchResponseMsg;
 use ipc_channel::ipc::IpcSender;
 use servo_url::ServoUrl;
 use std::sync::Arc;
diff --git a/components/net_traits/lib.rs b/components/net_traits/lib.rs
index e766bee302c..9acfe5dfcca 100644
--- a/components/net_traits/lib.rs
+++ b/components/net_traits/lib.rs
@@ -45,9 +45,9 @@ use http::{Error as HttpError, HeaderMap};
 use hyper::Error as HyperError;
 use hyper::StatusCode;
 use hyper_serde::Serde;
-use ipc_channel::Error as IpcError;
 use ipc_channel::ipc::{self, IpcReceiver, IpcSender};
 use ipc_channel::router::ROUTER;
+use ipc_channel::Error as IpcError;
 use mime::Mime;
 use msg::constellation_msg::HistoryStateId;
 use servo_url::ServoUrl;
diff --git a/components/net_traits/response.rs b/components/net_traits/response.rs
index f8d454854ce..33eebc4eb66 100644
--- a/components/net_traits/response.rs
+++ b/components/net_traits/response.rs
@@ -11,8 +11,8 @@ use http::{HeaderMap, StatusCode};
 use hyper_serde::Serde;
 use servo_arc::Arc;
 use servo_url::ServoUrl;
-use std::sync::Mutex;
 use std::sync::atomic::AtomicBool;
+use std::sync::Mutex;
 
 /// [Response type](https://fetch.spec.whatwg.org/#concept-response-type)
 #[derive(Clone, Debug, Deserialize, MallocSizeOf, PartialEq, Serialize)]
diff --git a/components/profile/heartbeats.rs b/components/profile/heartbeats.rs
index ef95c853fce..4bdd5fd7527 100644
--- a/components/profile/heartbeats.rs
+++ b/components/profile/heartbeats.rs
@@ -2,9 +2,9 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use self::synchronized_heartbeat::{heartbeat_window_callback, lock_and_work};
 use heartbeats_simple::HeartbeatPow as Heartbeat;
 use profile_traits::time::ProfilerCategory;
-use self::synchronized_heartbeat::{heartbeat_window_callback, lock_and_work};
 use servo_config::opts;
 use std::collections::HashMap;
 use std::env::var_os;
@@ -139,12 +139,12 @@ fn log_heartbeat_records(hb: &mut Heartbeat) {
 }
 
 mod synchronized_heartbeat {
+    use super::log_heartbeat_records;
     use heartbeats_simple::HeartbeatPow as Heartbeat;
     use heartbeats_simple::HeartbeatPowContext as HeartbeatContext;
     use profile_traits::time::ProfilerCategory;
     use std::collections::HashMap;
-    use std::sync::atomic::{ATOMIC_BOOL_INIT, AtomicBool, Ordering};
-    use super::log_heartbeat_records;
+    use std::sync::atomic::{AtomicBool, Ordering, ATOMIC_BOOL_INIT};
 
     static mut HBS: Option<*mut HashMap<ProfilerCategory, Heartbeat>> = None;
 
diff --git a/components/profile/mem.rs b/components/profile/mem.rs
index 14c99654086..8e6a86c59cd 100644
--- a/components/profile/mem.rs
+++ b/components/profile/mem.rs
@@ -7,8 +7,8 @@
 use crate::time::duration_from_seconds;
 use ipc_channel::ipc::{self, IpcReceiver};
 use ipc_channel::router::ROUTER;
-use profile_traits::mem::{ProfilerChan, ProfilerMsg, ReportKind, Reporter, ReporterRequest};
 use profile_traits::mem::ReportsChan;
+use profile_traits::mem::{ProfilerChan, ProfilerMsg, ReportKind, Reporter, ReporterRequest};
 use std::borrow::ToOwned;
 use std::cmp::Ordering;
 use std::collections::HashMap;
@@ -386,10 +386,11 @@ impl ReportsForest {
 //---------------------------------------------------------------------------
 
 mod system_reporter {
-    #[cfg(all(feature = "unstable", not(target_os = "windows")))]
-    use libc::{c_void, size_t};
+    use super::{JEMALLOC_HEAP_ALLOCATED_STR, SYSTEM_HEAP_ALLOCATED_STR};
     #[cfg(target_os = "linux")]
     use libc::c_int;
+    #[cfg(all(feature = "unstable", not(target_os = "windows")))]
+    use libc::{c_void, size_t};
     use profile_traits::mem::{Report, ReportKind, ReporterRequest};
     #[cfg(all(feature = "unstable", not(target_os = "windows")))]
     use std::ffi::CString;
@@ -397,9 +398,8 @@ mod system_reporter {
     use std::mem::size_of;
     #[cfg(all(feature = "unstable", not(target_os = "windows")))]
     use std::ptr::null_mut;
-    use super::{JEMALLOC_HEAP_ALLOCATED_STR, SYSTEM_HEAP_ALLOCATED_STR};
     #[cfg(target_os = "macos")]
-    use task_info::task_basic_info::{virtual_size, resident_size};
+    use task_info::task_basic_info::{resident_size, virtual_size};
 
     /// Collects global measurements from the OS and heap allocators.
     pub fn collect_reports(request: ReporterRequest) {
@@ -601,10 +601,10 @@ mod system_reporter {
     #[cfg(target_os = "linux")]
     fn resident_segments() -> Vec<(String, usize)> {
         use regex::Regex;
-        use std::collections::HashMap;
         use std::collections::hash_map::Entry;
+        use std::collections::HashMap;
         use std::fs::File;
-        use std::io::{BufReader, BufRead};
+        use std::io::{BufRead, BufReader};
 
         // The first line of an entry in /proc/<pid>/smaps looks just like an entry
         // in /proc/<pid>/maps:
diff --git a/components/profile/time.rs b/components/profile/time.rs
index 75ce0f85fba..7cfdbcee14d 100644
--- a/components/profile/time.rs
+++ b/components/profile/time.rs
@@ -12,10 +12,11 @@ use influent::create_client;
 use influent::measurement::{Measurement, Value};
 use ipc_channel::ipc::{self, IpcReceiver};
 use profile_traits::energy::{energy_interval_ms, read_energy_uj};
-use profile_traits::time::{ProfilerCategory, ProfilerChan, ProfilerMsg, ProfilerData, TimerMetadata};
+use profile_traits::time::{
+    ProfilerCategory, ProfilerChan, ProfilerData, ProfilerMsg, TimerMetadata,
+};
 use profile_traits::time::{TimerMetadataFrameType, TimerMetadataReflowType};
 use servo_config::opts::OutputOptions;
-use std::{f64, thread, u32, u64};
 use std::borrow::ToOwned;
 use std::cmp::Ordering;
 use std::collections::BTreeMap;
@@ -24,6 +25,7 @@ use std::fs::File;
 use std::io::{self, Write};
 use std::path::Path;
 use std::time::Duration;
+use std::{f64, thread, u32, u64};
 use tokio;
 use tokio::prelude::Future;
 
diff --git a/components/profile_traits/time.rs b/components/profile_traits/time.rs
index ec3e5520b3d..010bb009682 100644
--- a/components/profile_traits/time.rs
+++ b/components/profile_traits/time.rs
@@ -4,9 +4,9 @@
 
 extern crate time as std_time;
 
+use self::std_time::precise_time_ns;
 use crate::energy::read_energy_uj;
 use ipc_channel::ipc::IpcSender;
-use self::std_time::precise_time_ns;
 use servo_config::opts;
 use signpost;
 
diff --git a/components/rand/lib.rs b/components/rand/lib.rs
index 5a10bf9e3c1..56c20522b76 100644
--- a/components/rand/lib.rs
+++ b/components/rand/lib.rs
@@ -19,13 +19,13 @@ extern crate log;
 extern crate rand;
 extern crate uuid;
 
-pub use rand::{Rand, Rng, SeedableRng};
 #[cfg(target_pointer_width = "64")]
 use rand::isaac::Isaac64Rng as IsaacWordRng;
 #[cfg(target_pointer_width = "32")]
 use rand::isaac::IsaacRng as IsaacWordRng;
 use rand::os::OsRng;
-use rand::reseeding::{ReseedingRng, Reseeder};
+use rand::reseeding::{Reseeder, ReseedingRng};
+pub use rand::{Rand, Rng, SeedableRng};
 use std::cell::RefCell;
 use std::mem;
 use std::rc::Rc;
diff --git a/components/remutex/lib.rs b/components/remutex/lib.rs
index 6f8f11ac498..d47237d0ef6 100644
--- a/components/remutex/lib.rs
+++ b/components/remutex/lib.rs
@@ -18,8 +18,8 @@ extern crate log;
 use std::cell::{Cell, UnsafeCell};
 use std::num::NonZeroUsize;
 use std::ops::Deref;
-use std::sync::{LockResult, Mutex, MutexGuard, PoisonError, TryLockError, TryLockResult};
 use std::sync::atomic::{AtomicUsize, Ordering};
+use std::sync::{LockResult, Mutex, MutexGuard, PoisonError, TryLockError, TryLockResult};
 
 /// A type for thread ids.
 
diff --git a/components/script/clipboard_provider.rs b/components/script/clipboard_provider.rs
index 8b9ce13b582..9ae2bdaa6ea 100644
--- a/components/script/clipboard_provider.rs
+++ b/components/script/clipboard_provider.rs
@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use ipc_channel::ipc::channel;
-use script_traits::{ScriptToConstellationChan, ScriptMsg};
+use script_traits::{ScriptMsg, ScriptToConstellationChan};
 use std::borrow::ToOwned;
 
 pub trait ClipboardProvider {
diff --git a/components/script/devtools.rs b/components/script/devtools.rs
index feb90a1982f..ddc5528ecc4 100644
--- a/components/script/devtools.rs
+++ b/components/script/devtools.rs
@@ -7,7 +7,7 @@ use crate::dom::bindings::codegen::Bindings::DOMRectBinding::DOMRectMethods;
 use crate::dom::bindings::codegen::Bindings::DocumentBinding::DocumentMethods;
 use crate::dom::bindings::codegen::Bindings::ElementBinding::ElementMethods;
 use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
-use crate::dom::bindings::conversions::{ConversionResult, FromJSValConvertible, jsstring_to_str};
+use crate::dom::bindings::conversions::{jsstring_to_str, ConversionResult, FromJSValConvertible};
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::reflector::DomObject;
 use crate::dom::bindings::root::DomRoot;
@@ -15,13 +15,13 @@ use crate::dom::bindings::str::DOMString;
 use crate::dom::document::AnimationFrameCallback;
 use crate::dom::element::Element;
 use crate::dom::globalscope::GlobalScope;
-use crate::dom::node::{Node, window_from_node};
+use crate::dom::node::{window_from_node, Node};
 use crate::dom::window::Window;
 use crate::script_thread::Documents;
+use devtools_traits::TimelineMarkerType;
 use devtools_traits::{AutoMargins, CachedConsoleMessage, CachedConsoleMessageTypes};
 use devtools_traits::{ComputedNodeLayout, ConsoleAPI, PageError};
 use devtools_traits::{EvaluateJSReply, Modification, NodeInfo, TimelineMarker};
-use devtools_traits::TimelineMarkerType;
 use ipc_channel::ipc::IpcSender;
 use js::jsapi::JSAutoCompartment;
 use js::jsval::UndefinedValue;
diff --git a/components/script/document_loader.rs b/components/script/document_loader.rs
index efde3f33a3f..433641961d4 100644
--- a/components/script/document_loader.rs
+++ b/components/script/document_loader.rs
@@ -10,9 +10,9 @@ use crate::dom::bindings::root::Dom;
 use crate::dom::document::Document;
 use crate::fetch::FetchCanceller;
 use ipc_channel::ipc::IpcSender;
-use net_traits::{CoreResourceMsg, FetchChannels, FetchResponseMsg};
-use net_traits::{ResourceThreads, IpcSend};
 use net_traits::request::RequestInit;
+use net_traits::{CoreResourceMsg, FetchChannels, FetchResponseMsg};
+use net_traits::{IpcSend, ResourceThreads};
 use servo_url::ServoUrl;
 use std::thread;
 
diff --git a/components/script/dom/abstractworkerglobalscope.rs b/components/script/dom/abstractworkerglobalscope.rs
index 1ca0fdcacfd..ab919bd87c4 100644
--- a/components/script/dom/abstractworkerglobalscope.rs
+++ b/components/script/dom/abstractworkerglobalscope.rs
@@ -9,7 +9,7 @@ use crate::dom::dedicatedworkerglobalscope::{AutoWorkerReset, DedicatedWorkerScr
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::worker::TrustedWorkerAddress;
 use crate::dom::workerglobalscope::WorkerGlobalScope;
-use crate::script_runtime::{ScriptChan, CommonScriptMsg, ScriptPort};
+use crate::script_runtime::{CommonScriptMsg, ScriptChan, ScriptPort};
 use crate::task_queue::{QueuedTaskConversion, TaskQueue};
 use devtools_traits::DevtoolScriptControlMsg;
 use servo_channel::{Receiver, Sender};
diff --git a/components/script/dom/analysernode.rs b/components/script/dom/analysernode.rs
index b4c172f9865..cf04bd44fca 100644
--- a/components/script/dom/analysernode.rs
+++ b/components/script/dom/analysernode.rs
@@ -5,8 +5,12 @@
 use crate::dom::audionode::AudioNode;
 use crate::dom::baseaudiocontext::BaseAudioContext;
 use crate::dom::bindings::cell::DomRefCell;
-use crate::dom::bindings::codegen::Bindings::AnalyserNodeBinding::{self, AnalyserNodeMethods, AnalyserOptions};
-use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{ChannelCountMode, ChannelInterpretation};
+use crate::dom::bindings::codegen::Bindings::AnalyserNodeBinding::{
+    self, AnalyserNodeMethods, AnalyserOptions,
+};
+use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{
+    ChannelCountMode, ChannelInterpretation,
+};
 use crate::dom::bindings::error::{Error, Fallible};
 use crate::dom::bindings::num::Finite;
 use crate::dom::bindings::refcounted::Trusted;
diff --git a/components/script/dom/attr.rs b/components/script/dom/attr.rs
index b90fe33e347..955b05ebdd9 100644
--- a/components/script/dom/attr.rs
+++ b/components/script/dom/attr.rs
@@ -5,7 +5,7 @@
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::AttrBinding::{self, AttrMethods};
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{DomRoot, LayoutDom, MutNullableDom, RootedReference};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::customelementregistry::CallbackReaction;
@@ -17,7 +17,7 @@ use crate::dom::window::Window;
 use crate::script_thread::ScriptThread;
 use devtools_traits::AttrInfo;
 use dom_struct::dom_struct;
-use html5ever::{Prefix, LocalName, Namespace};
+use html5ever::{LocalName, Namespace, Prefix};
 use servo_atoms::Atom;
 use std::borrow::ToOwned;
 use std::cell::Ref;
diff --git a/components/script/dom/audiobuffer.rs b/components/script/dom/audiobuffer.rs
index 92c53da3e9d..8aa05a35e11 100644
--- a/components/script/dom/audiobuffer.rs
+++ b/components/script/dom/audiobuffer.rs
@@ -4,17 +4,19 @@
 
 use crate::dom::audionode::MAX_CHANNEL_COUNT;
 use crate::dom::bindings::cell::DomRefCell;
-use crate::dom::bindings::codegen::Bindings::AudioBufferBinding::{self, AudioBufferMethods, AudioBufferOptions};
+use crate::dom::bindings::codegen::Bindings::AudioBufferBinding::{
+    self, AudioBufferMethods, AudioBufferOptions,
+};
 use crate::dom::bindings::error::{Error, Fallible};
 use crate::dom::bindings::num::Finite;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::window::Window;
 use dom_struct::dom_struct;
-use js::jsapi::{Heap, JSAutoCompartment, JSContext, JSObject};
 use js::jsapi::JS_GetArrayBufferViewBuffer;
-use js::rust::CustomAutoRooterGuard;
+use js::jsapi::{Heap, JSAutoCompartment, JSContext, JSObject};
 use js::rust::wrappers::JS_DetachArrayBuffer;
+use js::rust::CustomAutoRooterGuard;
 use js::typedarray::{CreateWith, Float32Array};
 use servo_media::audio::buffer_source_node::AudioBuffer as ServoMediaAudioBuffer;
 use std::cell::Ref;
diff --git a/components/script/dom/audiobuffersourcenode.rs b/components/script/dom/audiobuffersourcenode.rs
index 7dbe2550b62..09f6e7dadc6 100644
--- a/components/script/dom/audiobuffersourcenode.rs
+++ b/components/script/dom/audiobuffersourcenode.rs
@@ -20,7 +20,7 @@ use crate::dom::window::Window;
 use dom_struct::dom_struct;
 use servo_media::audio::buffer_source_node::AudioBufferSourceNodeMessage;
 use servo_media::audio::buffer_source_node::AudioBufferSourceNodeOptions;
-use servo_media::audio::node::{AudioNodeMessage, AudioNodeInit};
+use servo_media::audio::node::{AudioNodeInit, AudioNodeMessage};
 use servo_media::audio::param::ParamType;
 use std::cell::Cell;
 use std::f32;
diff --git a/components/script/dom/audiocontext.rs b/components/script/dom/audiocontext.rs
index af7e63aa83d..03cdb516139 100644
--- a/components/script/dom/audiocontext.rs
+++ b/components/script/dom/audiocontext.rs
@@ -4,15 +4,19 @@
 
 use crate::dom::baseaudiocontext::{BaseAudioContext, BaseAudioContextOptions};
 use crate::dom::bindings::codegen::Bindings::AudioContextBinding;
-use crate::dom::bindings::codegen::Bindings::AudioContextBinding::{AudioContextLatencyCategory, AudioContextMethods};
-use crate::dom::bindings::codegen::Bindings::AudioContextBinding::{AudioContextOptions, AudioTimestamp};
+use crate::dom::bindings::codegen::Bindings::AudioContextBinding::{
+    AudioContextLatencyCategory, AudioContextMethods,
+};
+use crate::dom::bindings::codegen::Bindings::AudioContextBinding::{
+    AudioContextOptions, AudioTimestamp,
+};
 use crate::dom::bindings::codegen::Bindings::BaseAudioContextBinding::AudioContextState;
 use crate::dom::bindings::codegen::Bindings::BaseAudioContextBinding::BaseAudioContextBinding::BaseAudioContextMethods;
 use crate::dom::bindings::error::{Error, Fallible};
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::num::Finite;
 use crate::dom::bindings::refcounted::{Trusted, TrustedPromise};
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::promise::Promise;
 use crate::dom::window::Window;
diff --git a/components/script/dom/audiodestinationnode.rs b/components/script/dom/audiodestinationnode.rs
index e2e8905774b..42336b862aa 100644
--- a/components/script/dom/audiodestinationnode.rs
+++ b/components/script/dom/audiodestinationnode.rs
@@ -4,9 +4,13 @@
 
 use crate::dom::audionode::{AudioNode, MAX_CHANNEL_COUNT};
 use crate::dom::baseaudiocontext::BaseAudioContext;
-use crate::dom::bindings::codegen::Bindings::AudioDestinationNodeBinding::{self, AudioDestinationNodeMethods};
-use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{ChannelCountMode, ChannelInterpretation};
+use crate::dom::bindings::codegen::Bindings::AudioDestinationNodeBinding::{
+    self, AudioDestinationNodeMethods,
+};
 use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::AudioNodeOptions;
+use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{
+    ChannelCountMode, ChannelInterpretation,
+};
 use crate::dom::bindings::reflector::reflect_dom_object;
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::globalscope::GlobalScope;
diff --git a/components/script/dom/audiolistener.rs b/components/script/dom/audiolistener.rs
index ef2be88799d..f9ad0ff35d0 100644
--- a/components/script/dom/audiolistener.rs
+++ b/components/script/dom/audiolistener.rs
@@ -6,11 +6,11 @@ use crate::dom::audioparam::AudioParam;
 use crate::dom::baseaudiocontext::BaseAudioContext;
 use crate::dom::bindings::codegen::Bindings::AudioListenerBinding::{self, AudioListenerMethods};
 use crate::dom::bindings::codegen::Bindings::AudioParamBinding::AutomationRate;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::window::Window;
 use dom_struct::dom_struct;
-use servo_media::audio::param::{ParamType, ParamDir};
+use servo_media::audio::param::{ParamDir, ParamType};
 use std::f32;
 
 #[dom_struct]
diff --git a/components/script/dom/audionode.rs b/components/script/dom/audionode.rs
index b96dde64a4c..17aabade2e7 100644
--- a/components/script/dom/audionode.rs
+++ b/components/script/dom/audionode.rs
@@ -4,8 +4,12 @@
 
 use crate::dom::audioparam::AudioParam;
 use crate::dom::baseaudiocontext::BaseAudioContext;
-use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{AudioNodeMethods, AudioNodeOptions};
-use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{ChannelCountMode, ChannelInterpretation};
+use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{
+    AudioNodeMethods, AudioNodeOptions,
+};
+use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{
+    ChannelCountMode, ChannelInterpretation,
+};
 use crate::dom::bindings::codegen::InheritTypes::{AudioNodeTypeId, EventTargetTypeId};
 use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
 use crate::dom::bindings::inheritance::Castable;
@@ -13,9 +17,9 @@ use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::eventtarget::EventTarget;
 use dom_struct::dom_struct;
 use servo_media::audio::graph::NodeId;
-use servo_media::audio::node::{AudioNodeMessage, AudioNodeInit, ChannelInfo};
 use servo_media::audio::node::ChannelCountMode as ServoMediaChannelCountMode;
 use servo_media::audio::node::ChannelInterpretation as ServoMediaChannelInterpretation;
+use servo_media::audio::node::{AudioNodeInit, AudioNodeMessage, ChannelInfo};
 use std::cell::Cell;
 
 // 32 is the minimum required by the spec for createBuffer() and the deprecated
diff --git a/components/script/dom/audioparam.rs b/components/script/dom/audioparam.rs
index d35bac52c44..659b4dde76d 100644
--- a/components/script/dom/audioparam.rs
+++ b/components/script/dom/audioparam.rs
@@ -4,9 +4,11 @@
 
 use crate::dom::baseaudiocontext::BaseAudioContext;
 use crate::dom::bindings::codegen::Bindings::AudioParamBinding;
-use crate::dom::bindings::codegen::Bindings::AudioParamBinding::{AudioParamMethods, AutomationRate};
+use crate::dom::bindings::codegen::Bindings::AudioParamBinding::{
+    AudioParamMethods, AutomationRate,
+};
 use crate::dom::bindings::num::Finite;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::window::Window;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/audioscheduledsourcenode.rs b/components/script/dom/audioscheduledsourcenode.rs
index fa094555c1e..31527fda3de 100644
--- a/components/script/dom/audioscheduledsourcenode.rs
+++ b/components/script/dom/audioscheduledsourcenode.rs
@@ -12,8 +12,8 @@ use crate::dom::bindings::refcounted::Trusted;
 use crate::dom::bindings::reflector::DomObject;
 use crate::task_source::{TaskSource, TaskSourceName};
 use dom_struct::dom_struct;
-use servo_media::audio::node::{AudioNodeMessage, AudioNodeInit, AudioScheduledSourceNodeMessage};
 use servo_media::audio::node::OnEndedCallback;
+use servo_media::audio::node::{AudioNodeInit, AudioNodeMessage, AudioScheduledSourceNodeMessage};
 use std::cell::Cell;
 
 #[dom_struct]
diff --git a/components/script/dom/baseaudiocontext.rs b/components/script/dom/baseaudiocontext.rs
index 5958eb14b14..3b9a0a6b105 100644
--- a/components/script/dom/baseaudiocontext.rs
+++ b/components/script/dom/baseaudiocontext.rs
@@ -12,8 +12,10 @@ use crate::dom::bindings::callback::ExceptionHandling;
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::AnalyserNodeBinding::AnalyserOptions;
 use crate::dom::bindings::codegen::Bindings::AudioBufferSourceNodeBinding::AudioBufferSourceOptions;
-use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{ChannelCountMode, ChannelInterpretation};
 use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::AudioNodeOptions;
+use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{
+    ChannelCountMode, ChannelInterpretation,
+};
 use crate::dom::bindings::codegen::Bindings::BaseAudioContextBinding::AudioContextState;
 use crate::dom::bindings::codegen::Bindings::BaseAudioContextBinding::BaseAudioContextMethods;
 use crate::dom::bindings::codegen::Bindings::BaseAudioContextBinding::DecodeErrorCallback;
@@ -42,11 +44,11 @@ use crate::task_source::{TaskSource, TaskSourceName};
 use dom_struct::dom_struct;
 use js::rust::CustomAutoRooterGuard;
 use js::typedarray::ArrayBuffer;
-use servo_media::{Backend, ServoMedia};
 use servo_media::audio::context::{AudioContext, AudioContextOptions, ProcessingState};
 use servo_media::audio::context::{OfflineAudioContextOptions, RealTimeAudioContextOptions};
 use servo_media::audio::decoder::AudioDecoderCallbacks;
 use servo_media::audio::graph::NodeId;
+use servo_media::{Backend, ServoMedia};
 use std::cell::Cell;
 use std::collections::{HashMap, VecDeque};
 use std::mem;
diff --git a/components/script/dom/bindings/callback.rs b/components/script/dom/bindings/callback.rs
index 4db1fdf22cd..365817dcff1 100644
--- a/components/script/dom/bindings/callback.rs
+++ b/components/script/dom/bindings/callback.rs
@@ -4,19 +4,19 @@
 
 //! Base classes to work with IDL callbacks.
 
-use crate::dom::bindings::error::{Error, Fallible, report_pending_exception};
+use crate::dom::bindings::error::{report_pending_exception, Error, Fallible};
 use crate::dom::bindings::reflector::DomObject;
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::settings_stack::{AutoEntryScript, AutoIncumbentScript};
 use crate::dom::bindings::utils::AsCCharPtrPtr;
 use crate::dom::globalscope::GlobalScope;
-use js::jsapi::{IsCallable, JSContext, JSObject, AddRawValueRoot};
-use js::jsapi::{JSCompartment, JS_EnterCompartment, JS_LeaveCompartment, RemoveRawValueRoot};
 use js::jsapi::Heap;
 use js::jsapi::JSAutoCompartment;
-use js::jsval::{JSVal, UndefinedValue, ObjectValue};
+use js::jsapi::{AddRawValueRoot, IsCallable, JSContext, JSObject};
+use js::jsapi::{JSCompartment, JS_EnterCompartment, JS_LeaveCompartment, RemoveRawValueRoot};
+use js::jsval::{JSVal, ObjectValue, UndefinedValue};
+use js::rust::wrappers::{JS_GetProperty, JS_WrapObject};
 use js::rust::{MutableHandleObject, Runtime};
-use js::rust::wrappers::{JS_WrapObject, JS_GetProperty};
 use std::default::Default;
 use std::ffi::CString;
 use std::mem::drop;
diff --git a/components/script/dom/bindings/constant.rs b/components/script/dom/bindings/constant.rs
index 0329d106132..4d88d485ee3 100644
--- a/components/script/dom/bindings/constant.rs
+++ b/components/script/dom/bindings/constant.rs
@@ -4,11 +4,11 @@
 
 //! WebIDL constants.
 
-use js::jsapi::{JSContext, JSPROP_ENUMERATE, JSPROP_PERMANENT};
 use js::jsapi::JSPROP_READONLY;
+use js::jsapi::{JSContext, JSPROP_ENUMERATE, JSPROP_PERMANENT};
 use js::jsval::{BooleanValue, DoubleValue, Int32Value, JSVal, NullValue, UInt32Value};
-use js::rust::HandleObject;
 use js::rust::wrappers::JS_DefineProperty;
+use js::rust::HandleObject;
 use libc;
 
 /// Representation of an IDL constant.
diff --git a/components/script/dom/bindings/conversions.rs b/components/script/dom/bindings/conversions.rs
index aecaf0c1a04..a96371aaf06 100644
--- a/components/script/dom/bindings/conversions.rs
+++ b/components/script/dom/bindings/conversions.rs
@@ -41,22 +41,24 @@ use crate::dom::bindings::str::{ByteString, DOMString, USVString};
 use crate::dom::bindings::trace::{JSTraceable, RootedTraceableBox};
 use crate::dom::bindings::utils::DOMClass;
 use js;
-pub use js::conversions::{ConversionResult, FromJSValConvertible, ToJSValConvertible};
-pub use js::conversions::ConversionBehavior;
 use js::conversions::latin1_to_string;
+pub use js::conversions::ConversionBehavior;
+pub use js::conversions::{ConversionResult, FromJSValConvertible, ToJSValConvertible};
 use js::error::throw_type_error;
+use js::glue::GetProxyReservedSlot;
+use js::glue::JS_GetReservedSlot;
 use js::glue::{IsWrapper, UnwrapObject};
 use js::glue::{RUST_JSID_IS_INT, RUST_JSID_TO_INT};
 use js::glue::{RUST_JSID_IS_STRING, RUST_JSID_TO_STRING};
-use js::glue::GetProxyReservedSlot;
-use js::glue::JS_GetReservedSlot;
 use js::jsapi::{Heap, JSContext, JSObject, JSString};
-use js::jsapi::{JS_GetLatin1StringCharsAndLength, JS_GetTwoByteStringCharsAndLength, JS_IsExceptionPending};
+use js::jsapi::{
+    JS_GetLatin1StringCharsAndLength, JS_GetTwoByteStringCharsAndLength, JS_IsExceptionPending,
+};
 use js::jsapi::{JS_NewStringCopyN, JS_StringHasLatin1Chars};
 use js::jsval::{ObjectValue, StringValue, UndefinedValue};
-use js::rust::{HandleId, HandleObject, HandleValue, MutableHandleValue};
-use js::rust::{get_object_class, is_dom_class, is_dom_object, maybe_wrap_value, ToString};
 use js::rust::wrappers::{JS_GetProperty, JS_IsArrayObject};
+use js::rust::{get_object_class, is_dom_class, is_dom_object, maybe_wrap_value, ToString};
+use js::rust::{HandleId, HandleObject, HandleValue, MutableHandleValue};
 use libc;
 use num_traits::Float;
 use servo_config::opts;
diff --git a/components/script/dom/bindings/error.rs b/components/script/dom/bindings/error.rs
index 061e74fb3cc..bba99606ae7 100644
--- a/components/script/dom/bindings/error.rs
+++ b/components/script/dom/bindings/error.rs
@@ -10,8 +10,10 @@ use backtrace::Backtrace;
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::DOMExceptionBinding::DOMExceptionMethods;
 use crate::dom::bindings::codegen::PrototypeList::proto_id_to_name;
-use crate::dom::bindings::conversions::{ConversionResult, FromJSValConvertible, ToJSValConvertible};
 use crate::dom::bindings::conversions::root_from_object;
+use crate::dom::bindings::conversions::{
+    ConversionResult, FromJSValConvertible, ToJSValConvertible,
+};
 use crate::dom::bindings::str::USVString;
 use crate::dom::domexception::{DOMErrorName, DOMException};
 use crate::dom::globalscope::GlobalScope;
@@ -20,11 +22,11 @@ use js::jsapi::JSContext;
 use js::jsapi::JS_ClearPendingException;
 use js::jsapi::JS_IsExceptionPending;
 use js::jsval::UndefinedValue;
-use js::rust::HandleObject;
-use js::rust::MutableHandleValue;
 use js::rust::wrappers::JS_ErrorFromException;
 use js::rust::wrappers::JS_GetPendingException;
 use js::rust::wrappers::JS_SetPendingException;
+use js::rust::HandleObject;
+use js::rust::MutableHandleValue;
 use libc::c_uint;
 use std::slice::from_raw_parts;
 
diff --git a/components/script/dom/bindings/htmlconstructor.rs b/components/script/dom/bindings/htmlconstructor.rs
index 9923ad8716d..f0f46aabeec 100644
--- a/components/script/dom/bindings/htmlconstructor.rs
+++ b/components/script/dom/bindings/htmlconstructor.rs
@@ -77,8 +77,8 @@ use crate::dom::element::{CustomElementState, Element, ElementCreator};
 use crate::dom::htmlelement::HTMLElement;
 use crate::dom::window::Window;
 use crate::script_thread::ScriptThread;
-use html5ever::LocalName;
 use html5ever::interface::QualName;
+use html5ever::LocalName;
 use js::glue::UnwrapObject;
 use js::jsapi::{CallArgs, CurrentGlobalOrNull};
 use js::jsapi::{JSAutoCompartment, JSContext, JSObject};
diff --git a/components/script/dom/bindings/inheritance.rs b/components/script/dom/bindings/inheritance.rs
index 5e535a0a0ba..888e0525fea 100644
--- a/components/script/dom/bindings/inheritance.rs
+++ b/components/script/dom/bindings/inheritance.rs
@@ -6,8 +6,8 @@
 
 pub use crate::dom::bindings::codegen::InheritTypes::*;
 
-use crate::dom::bindings::conversions::{DerivedFrom, IDLInterface};
 use crate::dom::bindings::conversions::get_dom_class;
+use crate::dom::bindings::conversions::{DerivedFrom, IDLInterface};
 use crate::dom::bindings::reflector::DomObject;
 use std::mem;
 
diff --git a/components/script/dom/bindings/interface.rs b/components/script/dom/bindings/interface.rs
index e390eb54742..5389fabd07d 100644
--- a/components/script/dom/bindings/interface.rs
+++ b/components/script/dom/bindings/interface.rs
@@ -9,28 +9,32 @@ use crate::dom::bindings::codegen::PrototypeList;
 use crate::dom::bindings::constant::{define_constants, ConstantSpec};
 use crate::dom::bindings::conversions::{get_dom_class, DOM_OBJECT_SLOT};
 use crate::dom::bindings::guard::Guard;
-use crate::dom::bindings::utils::{get_proto_or_iface_array, ProtoOrIfaceArray, DOM_PROTOTYPE_SLOT};
+use crate::dom::bindings::utils::{
+    get_proto_or_iface_array, ProtoOrIfaceArray, DOM_PROTOTYPE_SLOT,
+};
 use js::error::throw_type_error;
 use js::glue::{UncheckedUnwrapObject, RUST_SYMBOL_TO_JSID};
+use js::jsapi::HandleObject as RawHandleObject;
+use js::jsapi::MutableHandleValue as RawMutableHandleValue;
 use js::jsapi::{Class, ClassOps, CompartmentOptions};
 use js::jsapi::{GetGlobalForObjectCrossCompartment, GetWellKnownSymbol};
-use js::jsapi::{JSAutoCompartment, JSClass, JSContext, JSFunctionSpec, JSObject, JSFUN_CONSTRUCTOR};
-use js::jsapi::{JSPROP_PERMANENT, JSPROP_READONLY, JSPROP_RESOLVING};
+use js::jsapi::{
+    JSAutoCompartment, JSClass, JSContext, JSFunctionSpec, JSObject, JSFUN_CONSTRUCTOR,
+};
 use js::jsapi::{JSPropertySpec, JSString, JSTracer, JS_AtomizeAndPinString};
 use js::jsapi::{JS_GetFunctionObject, JS_NewFunction, JS_NewGlobalObject};
 use js::jsapi::{JS_NewObject, JS_NewPlainObject};
 use js::jsapi::{JS_NewStringCopyN, JS_SetReservedSlot};
 use js::jsapi::{ObjectOps, OnNewGlobalHookOption, SymbolCode};
 use js::jsapi::{TrueHandleValue, Value};
-use js::jsapi::HandleObject as RawHandleObject;
-use js::jsapi::MutableHandleValue as RawMutableHandleValue;
+use js::jsapi::{JSPROP_PERMANENT, JSPROP_READONLY, JSPROP_RESOLVING};
 use js::jsval::{JSVal, PrivateValue};
-use js::rust::{HandleObject, HandleValue, MutableHandleObject};
-use js::rust::{define_methods, define_properties, get_object_class};
 use js::rust::wrappers::{JS_DefineProperty, JS_DefineProperty2};
 use js::rust::wrappers::{JS_DefineProperty3, JS_DefineProperty4, JS_DefinePropertyById4};
 use js::rust::wrappers::{JS_FireOnNewGlobalObject, JS_GetPrototype};
 use js::rust::wrappers::{JS_LinkConstructorAndPrototype, JS_NewObjectWithUniqueType};
+use js::rust::{define_methods, define_properties, get_object_class};
+use js::rust::{HandleObject, HandleValue, MutableHandleObject};
 use libc;
 use std::convert::TryFrom;
 use std::ptr;
diff --git a/components/script/dom/bindings/iterable.rs b/components/script/dom/bindings/iterable.rs
index c8b6caf5f42..b75dba9591b 100644
--- a/components/script/dom/bindings/iterable.rs
+++ b/components/script/dom/bindings/iterable.rs
@@ -9,7 +9,7 @@
 use crate::dom::bindings::codegen::Bindings::IterableIteratorBinding::IterableKeyAndValueResult;
 use crate::dom::bindings::codegen::Bindings::IterableIteratorBinding::IterableKeyOrValueResult;
 use crate::dom::bindings::error::Fallible;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::trace::{JSTraceable, RootedTraceableBox};
 use crate::dom::globalscope::GlobalScope;
diff --git a/components/script/dom/bindings/mozmap.rs b/components/script/dom/bindings/mozmap.rs
index 5c0451cca71..4d74a6405b0 100644
--- a/components/script/dom/bindings/mozmap.rs
+++ b/components/script/dom/bindings/mozmap.rs
@@ -9,19 +9,19 @@ use crate::dom::bindings::error::report_pending_exception;
 use crate::dom::bindings::str::DOMString;
 use js::conversions::{ConversionResult, FromJSValConvertible, ToJSValConvertible};
 use js::jsapi::JSContext;
+use js::jsapi::JS_NewPlainObject;
 use js::jsapi::JSITER_HIDDEN;
 use js::jsapi::JSITER_OWNONLY;
 use js::jsapi::JSITER_SYMBOLS;
 use js::jsapi::JSPROP_ENUMERATE;
-use js::jsapi::JS_NewPlainObject;
 use js::jsval::ObjectValue;
 use js::jsval::UndefinedValue;
-use js::rust::HandleValue;
-use js::rust::IdVector;
-use js::rust::MutableHandleValue;
 use js::rust::wrappers::GetPropertyKeys;
 use js::rust::wrappers::JS_DefineUCProperty2;
 use js::rust::wrappers::JS_GetPropertyById;
+use js::rust::HandleValue;
+use js::rust::IdVector;
+use js::rust::MutableHandleValue;
 use std::collections::HashMap;
 use std::ops::Deref;
 
diff --git a/components/script/dom/bindings/proxyhandler.rs b/components/script/dom/bindings/proxyhandler.rs
index 924696ecb26..a4584f2daa1 100644
--- a/components/script/dom/bindings/proxyhandler.rs
+++ b/components/script/dom/bindings/proxyhandler.rs
@@ -8,11 +8,9 @@
 
 use crate::dom::bindings::conversions::is_dom_proxy;
 use crate::dom::bindings::utils::delete_property_by_id;
+use js::glue::InvokeGetOwnPropertyDescriptor;
 use js::glue::{GetProxyHandler, GetProxyHandlerFamily};
 use js::glue::{GetProxyPrivate, SetProxyPrivate};
-use js::glue::InvokeGetOwnPropertyDescriptor;
-use js::jsapi::{DOMProxyShadowsResult, JSContext, JSObject, PropertyDescriptor};
-use js::jsapi::{JSErrNum, SetDOMProxyInformation};
 use js::jsapi::GetObjectProto;
 use js::jsapi::GetStaticPrototype;
 use js::jsapi::Handle as RawHandle;
@@ -23,11 +21,13 @@ use js::jsapi::JS_GetPropertyDescriptorById;
 use js::jsapi::MutableHandle as RawMutableHandle;
 use js::jsapi::MutableHandleObject as RawMutableHandleObject;
 use js::jsapi::ObjectOpResult;
+use js::jsapi::{DOMProxyShadowsResult, JSContext, JSObject, PropertyDescriptor};
+use js::jsapi::{JSErrNum, SetDOMProxyInformation};
 use js::jsval::ObjectValue;
 use js::jsval::UndefinedValue;
-use js::rust::{Handle, HandleObject, MutableHandle, MutableHandleObject};
 use js::rust::wrappers::JS_AlreadyHasOwnPropertyById;
 use js::rust::wrappers::JS_NewObjectWithGivenProto;
+use js::rust::{Handle, HandleObject, MutableHandle, MutableHandleObject};
 use std::ptr;
 
 /// Determine if this id shadows any existing properties for this proxy.
diff --git a/components/script/dom/bindings/refcounted.rs b/components/script/dom/bindings/refcounted.rs
index 740cb82b520..ca6bf086960 100644
--- a/components/script/dom/bindings/refcounted.rs
+++ b/components/script/dom/bindings/refcounted.rs
@@ -42,9 +42,9 @@ use std::sync::{Arc, Weak};
 #[allow(missing_docs)] // FIXME
 mod dummy {
     // Attributes don’t apply through the macro.
+    use super::LiveDOMReferences;
     use std::cell::RefCell;
     use std::rc::Rc;
-    use super::LiveDOMReferences;
     thread_local!(pub static LIVE_REFERENCES: Rc<RefCell<Option<LiveDOMReferences>>> =
             Rc::new(RefCell::new(None)));
 }
diff --git a/components/script/dom/bindings/reflector.rs b/components/script/dom/bindings/reflector.rs
index a86f502e235..0d27a5206db 100644
--- a/components/script/dom/bindings/reflector.rs
+++ b/components/script/dom/bindings/reflector.rs
@@ -7,7 +7,7 @@
 use crate::dom::bindings::conversions::DerivedFrom;
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::globalscope::GlobalScope;
-use js::jsapi::{JSContext, JSObject, Heap};
+use js::jsapi::{Heap, JSContext, JSObject};
 use js::rust::HandleObject;
 use std::default::Default;
 
diff --git a/components/script/dom/bindings/root.rs b/components/script/dom/bindings/root.rs
index 8c4a528b67a..25b77e052e6 100644
--- a/components/script/dom/bindings/root.rs
+++ b/components/script/dom/bindings/root.rs
@@ -27,10 +27,10 @@
 use crate::dom::bindings::conversions::DerivedFrom;
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::reflector::{DomObject, Reflector};
-use crate::dom::bindings::trace::JSTraceable;
 use crate::dom::bindings::trace::trace_reflector;
+use crate::dom::bindings::trace::JSTraceable;
 use crate::dom::node::Node;
-use js::jsapi::{JSObject, JSTracer, Heap};
+use js::jsapi::{Heap, JSObject, JSTracer};
 use js::rust::GCMethods;
 use malloc_size_of::{MallocSizeOf, MallocSizeOfOps};
 use mitochondria::OnceCell;
diff --git a/components/script/dom/bindings/str.rs b/components/script/dom/bindings/str.rs
index e52cf7755a3..9f038026562 100644
--- a/components/script/dom/bindings/str.rs
+++ b/components/script/dom/bindings/str.rs
@@ -4,8 +4,8 @@
 
 //! The `ByteString` struct.
 
+use chrono::prelude::{Utc, Weekday};
 use chrono::{Datelike, TimeZone};
-use chrono::prelude::{Weekday, Utc};
 use cssparser::CowRcStr;
 use html5ever::{LocalName, Namespace};
 use servo_atoms::Atom;
diff --git a/components/script/dom/bindings/structuredclone.rs b/components/script/dom/bindings/structuredclone.rs
index 094749ff875..d4cc8c1cdae 100644
--- a/components/script/dom/bindings/structuredclone.rs
+++ b/components/script/dom/bindings/structuredclone.rs
@@ -16,19 +16,19 @@ use js::glue::DeleteJSAutoStructuredCloneBuffer;
 use js::glue::GetLengthOfJSStructuredCloneData;
 use js::glue::NewJSAutoStructuredCloneBuffer;
 use js::glue::WriteBytesToJSStructuredCloneData;
-use js::jsapi::{JSAutoCompartment, JSContext};
-use js::jsapi::{JSStructuredCloneCallbacks, JSStructuredCloneReader, JSStructuredCloneWriter};
-use js::jsapi::{JS_ClearPendingException, JSObject};
-use js::jsapi::{JS_ReadBytes, JS_WriteBytes};
-use js::jsapi::{JS_ReadUint32Pair, JS_WriteUint32Pair};
 use js::jsapi::CloneDataPolicy;
 use js::jsapi::HandleObject as RawHandleObject;
-use js::jsapi::JS_STRUCTURED_CLONE_VERSION;
 use js::jsapi::MutableHandleObject as RawMutableHandleObject;
 use js::jsapi::StructuredCloneScope;
 use js::jsapi::TransferableOwnership;
+use js::jsapi::JS_STRUCTURED_CLONE_VERSION;
+use js::jsapi::{JSAutoCompartment, JSContext};
+use js::jsapi::{JSObject, JS_ClearPendingException};
+use js::jsapi::{JSStructuredCloneCallbacks, JSStructuredCloneReader, JSStructuredCloneWriter};
+use js::jsapi::{JS_ReadBytes, JS_WriteBytes};
+use js::jsapi::{JS_ReadUint32Pair, JS_WriteUint32Pair};
+use js::rust::wrappers::{JS_ReadStructuredClone, JS_WriteStructuredClone};
 use js::rust::{Handle, HandleValue, MutableHandleValue};
-use js::rust::wrappers::{JS_WriteStructuredClone, JS_ReadStructuredClone};
 use libc::size_t;
 use std::os::raw;
 use std::ptr;
diff --git a/components/script/dom/bindings/trace.rs b/components/script/dom/bindings/trace.rs
index d067fb1a9f7..d45bbdef121 100644
--- a/components/script/dom/bindings/trace.rs
+++ b/components/script/dom/bindings/trace.rs
@@ -30,7 +30,9 @@
 //! `JSTraceable` to a datatype.
 
 use app_units::Au;
-use canvas_traits::canvas::{CanvasGradientStop, CanvasId, LinearGradientStyle, RadialGradientStyle};
+use canvas_traits::canvas::{
+    CanvasGradientStop, CanvasId, LinearGradientStyle, RadialGradientStyle,
+};
 use canvas_traits::canvas::{CompositionOrBlending, LineCapStyle, LineJoinStyle, RepetitionStyle};
 use canvas_traits::webgl::{ActiveAttribInfo, ActiveUniformInfo, WebGLBufferId, WebGLChan};
 use canvas_traits::webgl::{WebGLContextShareMode, WebGLError, WebGLFramebufferId, WebGLMsgSender};
@@ -50,11 +52,11 @@ use crate::dom::htmlmediaelement::MediaFrameRenderer;
 use cssparser::RGBA;
 use devtools_traits::{CSSError, TimelineMarkerType, WorkerId};
 use encoding_rs::{Decoder, Encoding};
-use euclid::{Transform2D, Transform3D, Point2D, Vector2D, Rect, TypedSize2D, TypedScale};
 use euclid::Length as EuclidLength;
-use html5ever::{Prefix, LocalName, Namespace, QualName};
+use euclid::{Point2D, Rect, Transform2D, Transform3D, TypedScale, TypedSize2D, Vector2D};
 use html5ever::buffer_queue::BufferQueue;
 use html5ever::tendril::IncompleteUtf8;
+use html5ever::{LocalName, Namespace, Prefix, QualName};
 use http::header::HeaderMap;
 use hyper::Method;
 use hyper::StatusCode;
@@ -67,31 +69,31 @@ use js::typedarray::TypedArray;
 use js::typedarray::TypedArrayElement;
 use metrics::{InteractiveMetrics, InteractiveWindow};
 use mime::Mime;
-use msg::constellation_msg::{BrowsingContextId, HistoryStateId, PipelineId, TopLevelBrowsingContextId};
-use net_traits::{Metadata, NetworkError, ReferrerPolicy, ResourceThreads};
+use msg::constellation_msg::{
+    BrowsingContextId, HistoryStateId, PipelineId, TopLevelBrowsingContextId,
+};
 use net_traits::filemanager_thread::RelativePos;
 use net_traits::image::base::{Image, ImageMetadata};
 use net_traits::image_cache::{ImageCache, PendingImageId};
 use net_traits::request::{Request, RequestInit};
-use net_traits::response::{Response, ResponseBody};
 use net_traits::response::HttpsState;
+use net_traits::response::{Response, ResponseBody};
 use net_traits::storage_thread::StorageType;
+use net_traits::{Metadata, NetworkError, ReferrerPolicy, ResourceThreads};
 use offscreen_gl_context::GLLimits;
 use profile_traits::mem::ProfilerChan as MemProfilerChan;
 use profile_traits::time::ProfilerChan as TimeProfilerChan;
-use script_layout_interface::OpaqueStyleAndLayoutData;
 use script_layout_interface::reporter::CSSErrorReporter;
 use script_layout_interface::rpc::LayoutRPC;
+use script_layout_interface::OpaqueStyleAndLayoutData;
+use script_traits::DrawAPaintImageResult;
 use script_traits::{DocumentActivity, ScriptToConstellationChan, TimerEventId, TimerSource};
 use script_traits::{UntrustedNodeAddress, WindowSizeData, WindowSizeType};
-use script_traits::DrawAPaintImageResult;
 use selectors::matching::ElementSelectorFlags;
 use serde::{Deserialize, Serialize};
 use servo_arc::Arc as ServoArc;
 use servo_atoms::Atom;
 use servo_channel::{Receiver, Sender};
-use servo_media::Backend;
-use servo_media::Error as ServoMediaError;
 use servo_media::audio::analyser_node::AnalysisEngine;
 use servo_media::audio::buffer_source_node::AudioBuffer;
 use servo_media::audio::context::AudioContext;
@@ -99,6 +101,8 @@ use servo_media::audio::graph::NodeId;
 use servo_media::audio::panner_node::{DistanceModel, PanningModel};
 use servo_media::audio::param::ParamType;
 use servo_media::player::Player;
+use servo_media::Backend;
+use servo_media::Error as ServoMediaError;
 use servo_url::{ImmutableOrigin, MutableOrigin, ServoUrl};
 use smallvec::SmallVec;
 use std::cell::{Cell, RefCell, UnsafeCell};
@@ -107,20 +111,20 @@ use std::hash::{BuildHasher, Hash};
 use std::ops::{Deref, DerefMut};
 use std::path::PathBuf;
 use std::rc::Rc;
-use std::sync::{Arc, Mutex};
 use std::sync::atomic::{AtomicBool, AtomicUsize};
-use std::time::{SystemTime, Instant};
+use std::sync::{Arc, Mutex};
+use std::time::{Instant, SystemTime};
 use style::attr::{AttrIdentifier, AttrValue, LengthOrPercentageOrAuto};
 use style::context::QuirksMode;
 use style::element_state::*;
 use style::media_queries::MediaList;
 use style::properties::PropertyDeclarationBlock;
 use style::selector_parser::{PseudoElement, Snapshot};
-use style::shared_lock::{SharedRwLock as StyleSharedRwLock, Locked as StyleLocked};
+use style::shared_lock::{Locked as StyleLocked, SharedRwLock as StyleSharedRwLock};
 use style::stylesheet_set::DocumentStylesheetSet;
-use style::stylesheets::{CssRules, FontFaceRule, KeyframesRule, MediaRule, Stylesheet};
-use style::stylesheets::{NamespaceRule, StyleRule, ImportRule, SupportsRule, ViewportRule};
 use style::stylesheets::keyframes_rule::Keyframe;
+use style::stylesheets::{CssRules, FontFaceRule, KeyframesRule, MediaRule, Stylesheet};
+use style::stylesheets::{ImportRule, NamespaceRule, StyleRule, SupportsRule, ViewportRule};
 use style::values::specified::Length;
 use time::Duration;
 use uuid::Uuid;
diff --git a/components/script/dom/bindings/utils.rs b/components/script/dom/bindings/utils.rs
index 7a48349e594..177239537ba 100644
--- a/components/script/dom/bindings/utils.rs
+++ b/components/script/dom/bindings/utils.rs
@@ -14,23 +14,20 @@ use crate::dom::bindings::str::DOMString;
 use crate::dom::bindings::trace::trace_object;
 use crate::dom::windowproxy;
 use js;
-use js::JS_CALLEE;
 use js::glue::{CallJitGetterOp, CallJitMethodOp, CallJitSetterOp, IsWrapper};
 use js::glue::{GetCrossCompartmentWrapper, JS_GetReservedSlot, WrapperNew};
+use js::glue::{UnwrapObject, RUST_JSID_TO_INT, RUST_JSID_TO_STRING};
 use js::glue::{RUST_FUNCTION_VALUE_TO_JITINFO, RUST_JSID_IS_INT, RUST_JSID_IS_STRING};
-use js::glue::{RUST_JSID_TO_INT, RUST_JSID_TO_STRING, UnwrapObject};
+use js::jsapi::HandleId as RawHandleId;
+use js::jsapi::HandleObject as RawHandleObject;
+use js::jsapi::MutableHandleObject as RawMutableHandleObject;
 use js::jsapi::{CallArgs, DOMCallbacks, GetGlobalForObjectCrossCompartment};
 use js::jsapi::{Heap, JSAutoCompartment, JSContext};
 use js::jsapi::{JSJitInfo, JSObject, JSTracer, JSWrapObjectCallbacks};
 use js::jsapi::{JS_EnumerateStandardClasses, JS_GetLatin1StringCharsAndLength};
 use js::jsapi::{JS_IsExceptionPending, JS_IsGlobalObject};
 use js::jsapi::{JS_ResolveStandardClass, JS_StringHasLatin1Chars, ObjectOpResult};
-use js::jsapi::HandleId as RawHandleId;
-use js::jsapi::HandleObject as RawHandleObject;
-use js::jsapi::MutableHandleObject as RawMutableHandleObject;
 use js::jsval::{JSVal, UndefinedValue};
-use js::rust::{GCMethods, ToString, ToWindowProxyIfWindow, get_object_class, is_dom_class};
-use js::rust::{Handle, HandleId, HandleObject, HandleValue, MutableHandleValue};
 use js::rust::wrappers::JS_DeletePropertyById;
 use js::rust::wrappers::JS_ForwardGetPropertyTo;
 use js::rust::wrappers::JS_GetProperty;
@@ -38,6 +35,9 @@ use js::rust::wrappers::JS_GetPrototype;
 use js::rust::wrappers::JS_HasProperty;
 use js::rust::wrappers::JS_HasPropertyById;
 use js::rust::wrappers::JS_SetProperty;
+use js::rust::{get_object_class, is_dom_class, GCMethods, ToString, ToWindowProxyIfWindow};
+use js::rust::{Handle, HandleId, HandleObject, HandleValue, MutableHandleValue};
+use js::JS_CALLEE;
 use libc;
 use malloc_size_of::{MallocSizeOf, MallocSizeOfOps};
 use std::ffi::CString;
diff --git a/components/script/dom/bindings/xmlname.rs b/components/script/dom/bindings/xmlname.rs
index d547355e423..028b23bb987 100644
--- a/components/script/dom/bindings/xmlname.rs
+++ b/components/script/dom/bindings/xmlname.rs
@@ -6,7 +6,7 @@
 
 use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
 use crate::dom::bindings::str::DOMString;
-use html5ever::{Prefix, LocalName, Namespace};
+use html5ever::{LocalName, Namespace, Prefix};
 
 /// Validate a qualified name. See https://dom.spec.whatwg.org/#validate for details.
 pub fn validate_qualified_name(qualified_name: &str) -> ErrorResult {
diff --git a/components/script/dom/biquadfilternode.rs b/components/script/dom/biquadfilternode.rs
index 079c2c97395..15f5f09e07a 100644
--- a/components/script/dom/biquadfilternode.rs
+++ b/components/script/dom/biquadfilternode.rs
@@ -5,18 +5,22 @@
 use crate::dom::audionode::AudioNode;
 use crate::dom::audioparam::AudioParam;
 use crate::dom::baseaudiocontext::BaseAudioContext;
-use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{ChannelCountMode, ChannelInterpretation};
+use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{
+    ChannelCountMode, ChannelInterpretation,
+};
 use crate::dom::bindings::codegen::Bindings::AudioParamBinding::AutomationRate;
-use crate::dom::bindings::codegen::Bindings::BiquadFilterNodeBinding::{self, BiquadFilterNodeMethods};
 use crate::dom::bindings::codegen::Bindings::BiquadFilterNodeBinding::BiquadFilterOptions;
 use crate::dom::bindings::codegen::Bindings::BiquadFilterNodeBinding::BiquadFilterType;
+use crate::dom::bindings::codegen::Bindings::BiquadFilterNodeBinding::{
+    self, BiquadFilterNodeMethods,
+};
 use crate::dom::bindings::error::Fallible;
 use crate::dom::bindings::reflector::reflect_dom_object;
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::window::Window;
 use dom_struct::dom_struct;
-use servo_media::audio::biquad_filter_node::{BiquadFilterNodeOptions, FilterType};
 use servo_media::audio::biquad_filter_node::BiquadFilterNodeMessage;
+use servo_media::audio::biquad_filter_node::{BiquadFilterNodeOptions, FilterType};
 use servo_media::audio::node::{AudioNodeInit, AudioNodeMessage};
 use servo_media::audio::param::ParamType;
 use std::cell::Cell;
diff --git a/components/script/dom/blob.rs b/components/script/dom/blob.rs
index 41a2971b55d..4842f6b29fa 100644
--- a/components/script/dom/blob.rs
+++ b/components/script/dom/blob.rs
@@ -7,14 +7,14 @@ use crate::dom::bindings::codegen::Bindings::BlobBinding;
 use crate::dom::bindings::codegen::Bindings::BlobBinding::BlobMethods;
 use crate::dom::bindings::codegen::UnionTypes::ArrayBufferOrArrayBufferViewOrBlobOrString;
 use crate::dom::bindings::error::{Error, Fallible};
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::globalscope::GlobalScope;
 use dom_struct::dom_struct;
-use net_traits::{CoreResourceMsg, IpcSend};
-use net_traits::blob_url_store::{BlobBuf, get_blob_origin};
+use net_traits::blob_url_store::{get_blob_origin, BlobBuf};
 use net_traits::filemanager_thread::{FileManagerThreadMsg, ReadFileProgress, RelativePos};
+use net_traits::{CoreResourceMsg, IpcSend};
 use profile_traits::ipc;
 use std::mem;
 use std::ops::Index;
diff --git a/components/script/dom/bluetoothadvertisingevent.rs b/components/script/dom/bluetoothadvertisingevent.rs
index f32837ee89c..0ed93ce4ae8 100644
--- a/components/script/dom/bluetoothadvertisingevent.rs
+++ b/components/script/dom/bluetoothadvertisingevent.rs
@@ -2,8 +2,10 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::dom::bindings::codegen::Bindings::BluetoothAdvertisingEventBinding::{self, BluetoothAdvertisingEventInit};
 use crate::dom::bindings::codegen::Bindings::BluetoothAdvertisingEventBinding::BluetoothAdvertisingEventMethods;
+use crate::dom::bindings::codegen::Bindings::BluetoothAdvertisingEventBinding::{
+    self, BluetoothAdvertisingEventInit,
+};
 use crate::dom::bindings::codegen::Bindings::EventBinding::EventBinding::EventMethods;
 use crate::dom::bindings::error::Fallible;
 use crate::dom::bindings::inheritance::Castable;
diff --git a/components/script/dom/bluetoothcharacteristicproperties.rs b/components/script/dom/bluetoothcharacteristicproperties.rs
index 73b279c0904..05aee319613 100644
--- a/components/script/dom/bluetoothcharacteristicproperties.rs
+++ b/components/script/dom/bluetoothcharacteristicproperties.rs
@@ -3,9 +3,8 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use crate::dom::bindings::codegen::Bindings::BluetoothCharacteristicPropertiesBinding;
-use crate::dom::bindings::codegen::Bindings::BluetoothCharacteristicPropertiesBinding::
-BluetoothCharacteristicPropertiesMethods;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::codegen::Bindings::BluetoothCharacteristicPropertiesBinding::BluetoothCharacteristicPropertiesMethods;
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::globalscope::GlobalScope;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/bluetoothdevice.rs b/components/script/dom/bluetoothdevice.rs
index 0cd5320ef08..0810dff6413 100644
--- a/components/script/dom/bluetoothdevice.rs
+++ b/components/script/dom/bluetoothdevice.rs
@@ -11,10 +11,10 @@ use crate::dom::bindings::codegen::Bindings::BluetoothRemoteGATTServerBinding::B
 use crate::dom::bindings::error::Error;
 use crate::dom::bindings::error::ErrorResult;
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::{Dom, DomRoot, MutNullableDom};
 use crate::dom::bindings::str::DOMString;
-use crate::dom::bluetooth::{AsyncBluetoothListener, Bluetooth, response_async};
+use crate::dom::bluetooth::{response_async, AsyncBluetoothListener, Bluetooth};
 use crate::dom::bluetoothcharacteristicproperties::BluetoothCharacteristicProperties;
 use crate::dom::bluetoothremotegattcharacteristic::BluetoothRemoteGATTCharacteristic;
 use crate::dom::bluetoothremotegattdescriptor::BluetoothRemoteGATTDescriptor;
diff --git a/components/script/dom/bluetoothpermissionresult.rs b/components/script/dom/bluetoothpermissionresult.rs
index 048f6e636b9..3aa9d9a19b8 100644
--- a/components/script/dom/bluetoothpermissionresult.rs
+++ b/components/script/dom/bluetoothpermissionresult.rs
@@ -4,16 +4,20 @@
 
 use bluetooth_traits::{BluetoothRequest, BluetoothResponse};
 use crate::dom::bindings::cell::DomRefCell;
-use crate::dom::bindings::codegen::Bindings::BluetoothPermissionResultBinding::{self, BluetoothPermissionResultMethods};
+use crate::dom::bindings::codegen::Bindings::BluetoothPermissionResultBinding::{
+    self, BluetoothPermissionResultMethods,
+};
 use crate::dom::bindings::codegen::Bindings::NavigatorBinding::NavigatorBinding::NavigatorMethods;
-use crate::dom::bindings::codegen::Bindings::PermissionStatusBinding::{PermissionName, PermissionState};
 use crate::dom::bindings::codegen::Bindings::PermissionStatusBinding::PermissionStatusBinding::PermissionStatusMethods;
+use crate::dom::bindings::codegen::Bindings::PermissionStatusBinding::{
+    PermissionName, PermissionState,
+};
 use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowBinding::WindowMethods;
 use crate::dom::bindings::error::Error;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::DOMString;
-use crate::dom::bluetooth::{AsyncBluetoothListener, Bluetooth, AllowedBluetoothDevice};
+use crate::dom::bluetooth::{AllowedBluetoothDevice, AsyncBluetoothListener, Bluetooth};
 use crate::dom::bluetoothdevice::BluetoothDevice;
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::permissionstatus::PermissionStatus;
diff --git a/components/script/dom/bluetoothremotegattcharacteristic.rs b/components/script/dom/bluetoothremotegattcharacteristic.rs
index 847ad88fe7f..41732f120f9 100644
--- a/components/script/dom/bluetoothremotegattcharacteristic.rs
+++ b/components/script/dom/bluetoothremotegattcharacteristic.rs
@@ -2,23 +2,23 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use bluetooth_traits::blocklist::{uuid_is_blocklisted, Blocklist};
 use bluetooth_traits::{BluetoothRequest, BluetoothResponse, GATTType};
-use bluetooth_traits::blocklist::{Blocklist, uuid_is_blocklisted};
 use crate::dom::bindings::cell::DomRefCell;
-use crate::dom::bindings::codegen::Bindings::BluetoothCharacteristicPropertiesBinding::
-BluetoothCharacteristicPropertiesMethods;
+use crate::dom::bindings::codegen::Bindings::BluetoothCharacteristicPropertiesBinding::BluetoothCharacteristicPropertiesMethods;
 use crate::dom::bindings::codegen::Bindings::BluetoothRemoteGATTCharacteristicBinding;
-use crate::dom::bindings::codegen::Bindings::BluetoothRemoteGATTCharacteristicBinding::
-BluetoothRemoteGATTCharacteristicMethods;
+use crate::dom::bindings::codegen::Bindings::BluetoothRemoteGATTCharacteristicBinding::BluetoothRemoteGATTCharacteristicMethods;
 use crate::dom::bindings::codegen::Bindings::BluetoothRemoteGATTServerBinding::BluetoothRemoteGATTServerMethods;
 use crate::dom::bindings::codegen::Bindings::BluetoothRemoteGATTServiceBinding::BluetoothRemoteGATTServiceMethods;
 use crate::dom::bindings::codegen::UnionTypes::ArrayBufferViewOrArrayBuffer;
-use crate::dom::bindings::error::Error::{self, InvalidModification, Network, NotSupported, Security};
+use crate::dom::bindings::error::Error::{
+    self, InvalidModification, Network, NotSupported, Security,
+};
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::{ByteString, DOMString};
-use crate::dom::bluetooth::{AsyncBluetoothListener, get_gatt_children, response_async};
+use crate::dom::bluetooth::{get_gatt_children, response_async, AsyncBluetoothListener};
 use crate::dom::bluetoothcharacteristicproperties::BluetoothCharacteristicProperties;
 use crate::dom::bluetoothremotegattservice::BluetoothRemoteGATTService;
 use crate::dom::bluetoothuuid::{BluetoothDescriptorUUID, BluetoothUUID};
diff --git a/components/script/dom/bluetoothremotegattdescriptor.rs b/components/script/dom/bluetoothremotegattdescriptor.rs
index 7ed43e9f336..76a113c96e3 100644
--- a/components/script/dom/bluetoothremotegattdescriptor.rs
+++ b/components/script/dom/bluetoothremotegattdescriptor.rs
@@ -2,22 +2,23 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use bluetooth_traits::blocklist::{uuid_is_blocklisted, Blocklist};
 use bluetooth_traits::{BluetoothRequest, BluetoothResponse};
-use bluetooth_traits::blocklist::{Blocklist, uuid_is_blocklisted};
 use crate::dom::bindings::cell::DomRefCell;
-use crate::dom::bindings::codegen::Bindings::BluetoothRemoteGATTCharacteristicBinding::
-BluetoothRemoteGATTCharacteristicMethods;
+use crate::dom::bindings::codegen::Bindings::BluetoothRemoteGATTCharacteristicBinding::BluetoothRemoteGATTCharacteristicMethods;
 use crate::dom::bindings::codegen::Bindings::BluetoothRemoteGATTDescriptorBinding;
 use crate::dom::bindings::codegen::Bindings::BluetoothRemoteGATTDescriptorBinding::BluetoothRemoteGATTDescriptorMethods;
 use crate::dom::bindings::codegen::Bindings::BluetoothRemoteGATTServerBinding::BluetoothRemoteGATTServerMethods;
 use crate::dom::bindings::codegen::Bindings::BluetoothRemoteGATTServiceBinding::BluetoothRemoteGATTServiceMethods;
 use crate::dom::bindings::codegen::UnionTypes::ArrayBufferViewOrArrayBuffer;
 use crate::dom::bindings::error::Error::{self, InvalidModification, Network, Security};
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::{ByteString, DOMString};
-use crate::dom::bluetooth::{AsyncBluetoothListener, response_async};
-use crate::dom::bluetoothremotegattcharacteristic::{BluetoothRemoteGATTCharacteristic, MAXIMUM_ATTRIBUTE_LENGTH};
+use crate::dom::bluetooth::{response_async, AsyncBluetoothListener};
+use crate::dom::bluetoothremotegattcharacteristic::{
+    BluetoothRemoteGATTCharacteristic, MAXIMUM_ATTRIBUTE_LENGTH,
+};
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::promise::Promise;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/bluetoothremotegattserver.rs b/components/script/dom/bluetoothremotegattserver.rs
index 29ed938937b..dff68c60eca 100644
--- a/components/script/dom/bluetoothremotegattserver.rs
+++ b/components/script/dom/bluetoothremotegattserver.rs
@@ -8,9 +8,9 @@ use crate::dom::bindings::codegen::Bindings::BluetoothRemoteGATTServerBinding;
 use crate::dom::bindings::codegen::Bindings::BluetoothRemoteGATTServerBinding::BluetoothRemoteGATTServerMethods;
 use crate::dom::bindings::error::Error;
 use crate::dom::bindings::error::ErrorResult;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
-use crate::dom::bluetooth::{AsyncBluetoothListener, get_gatt_children, response_async};
+use crate::dom::bluetooth::{get_gatt_children, response_async, AsyncBluetoothListener};
 use crate::dom::bluetoothdevice::BluetoothDevice;
 use crate::dom::bluetoothuuid::{BluetoothServiceUUID, BluetoothUUID};
 use crate::dom::globalscope::GlobalScope;
diff --git a/components/script/dom/bluetoothremotegattservice.rs b/components/script/dom/bluetoothremotegattservice.rs
index c4f032dd356..1aeaf621691 100644
--- a/components/script/dom/bluetoothremotegattservice.rs
+++ b/components/script/dom/bluetoothremotegattservice.rs
@@ -10,7 +10,7 @@ use crate::dom::bindings::error::Error;
 use crate::dom::bindings::reflector::reflect_dom_object;
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::DOMString;
-use crate::dom::bluetooth::{AsyncBluetoothListener, get_gatt_children};
+use crate::dom::bluetooth::{get_gatt_children, AsyncBluetoothListener};
 use crate::dom::bluetoothdevice::BluetoothDevice;
 use crate::dom::bluetoothuuid::{BluetoothCharacteristicUUID, BluetoothServiceUUID, BluetoothUUID};
 use crate::dom::eventtarget::EventTarget;
diff --git a/components/script/dom/canvasgradient.rs b/components/script/dom/canvasgradient.rs
index c3a8dfa7c4b..1ff600937eb 100644
--- a/components/script/dom/canvasgradient.rs
+++ b/components/script/dom/canvasgradient.rs
@@ -2,18 +2,20 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use canvas_traits::canvas::{CanvasGradientStop, FillOrStrokeStyle, LinearGradientStyle, RadialGradientStyle};
+use canvas_traits::canvas::{
+    CanvasGradientStop, FillOrStrokeStyle, LinearGradientStyle, RadialGradientStyle,
+};
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::CanvasGradientBinding;
 use crate::dom::bindings::codegen::Bindings::CanvasGradientBinding::CanvasGradientMethods;
 use crate::dom::bindings::error::{Error, ErrorResult};
 use crate::dom::bindings::num::Finite;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::globalscope::GlobalScope;
-use cssparser::{Parser, ParserInput, RGBA};
 use cssparser::Color as CSSColor;
+use cssparser::{Parser, ParserInput, RGBA};
 use dom_struct::dom_struct;
 
 // https://html.spec.whatwg.org/multipage/#canvasgradient
diff --git a/components/script/dom/canvaspattern.rs b/components/script/dom/canvaspattern.rs
index fe8de52dc75..d5d18e4fa8b 100644
--- a/components/script/dom/canvaspattern.rs
+++ b/components/script/dom/canvaspattern.rs
@@ -4,7 +4,7 @@
 
 use canvas_traits::canvas::{FillOrStrokeStyle, RepetitionStyle, SurfaceStyle};
 use crate::dom::bindings::codegen::Bindings::CanvasPatternBinding;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::canvasgradient::ToFillOrStrokeStyle;
 use crate::dom::globalscope::GlobalScope;
diff --git a/components/script/dom/canvasrenderingcontext2d.rs b/components/script/dom/canvasrenderingcontext2d.rs
index 5ebc2eb98e1..1bf2a09b50f 100644
--- a/components/script/dom/canvasrenderingcontext2d.rs
+++ b/components/script/dom/canvasrenderingcontext2d.rs
@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use canvas_traits::canvas::{Canvas2dMsg, CanvasMsg, CanvasId};
+use canvas_traits::canvas::{Canvas2dMsg, CanvasId, CanvasMsg};
 use canvas_traits::canvas::{CompositionOrBlending, FillOrStrokeStyle, FillRule};
 use canvas_traits::canvas::{LineCapStyle, LineJoinStyle, LinearGradientStyle};
 use canvas_traits::canvas::{RadialGradientStyle, RepetitionStyle};
@@ -18,7 +18,7 @@ use crate::dom::bindings::codegen::UnionTypes::StringOrCanvasGradientOrCanvasPat
 use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::num::Finite;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot, LayoutDom};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::canvasgradient::{CanvasGradient, CanvasGradientStyle, ToFillOrStrokeStyle};
@@ -27,12 +27,12 @@ use crate::dom::element::Element;
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::htmlcanvaselement::{CanvasContext, HTMLCanvasElement};
 use crate::dom::imagedata::ImageData;
-use crate::dom::node::{Node, NodeDamage, window_from_node};
+use crate::dom::node::{window_from_node, Node, NodeDamage};
 use crate::unpremultiplytable::UNPREMULTIPLY_TABLE;
-use cssparser::{Parser, ParserInput, RGBA};
 use cssparser::Color as CSSColor;
+use cssparser::{Parser, ParserInput, RGBA};
 use dom_struct::dom_struct;
-use euclid::{Transform2D, Point2D, Rect, Size2D, vec2};
+use euclid::{vec2, Point2D, Rect, Size2D, Transform2D};
 use ipc_channel::ipc::{self, IpcSender};
 use net_traits::image::base::PixelFormat;
 use net_traits::image_cache::CanRequestImages;
@@ -45,10 +45,10 @@ use pixels;
 use profile_traits::ipc as profiled_ipc;
 use script_traits::ScriptMsg;
 use servo_url::ServoUrl;
-use std::{fmt, mem};
 use std::cell::Cell;
 use std::str::FromStr;
 use std::sync::Arc;
+use std::{fmt, mem};
 
 #[must_root]
 #[derive(Clone, JSTraceable, MallocSizeOf)]
diff --git a/components/script/dom/channelmergernode.rs b/components/script/dom/channelmergernode.rs
index 3602b5a7139..88fa3fceaee 100644
--- a/components/script/dom/channelmergernode.rs
+++ b/components/script/dom/channelmergernode.rs
@@ -4,8 +4,12 @@
 
 use crate::dom::audionode::{AudioNode, MAX_CHANNEL_COUNT};
 use crate::dom::baseaudiocontext::BaseAudioContext;
-use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{ChannelCountMode, ChannelInterpretation};
-use crate::dom::bindings::codegen::Bindings::ChannelMergerNodeBinding::{self, ChannelMergerOptions};
+use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{
+    ChannelCountMode, ChannelInterpretation,
+};
+use crate::dom::bindings::codegen::Bindings::ChannelMergerNodeBinding::{
+    self, ChannelMergerOptions,
+};
 use crate::dom::bindings::error::{Error, Fallible};
 use crate::dom::bindings::reflector::reflect_dom_object;
 use crate::dom::bindings::root::DomRoot;
diff --git a/components/script/dom/client.rs b/components/script/dom/client.rs
index ec20e59258c..042976e60ac 100644
--- a/components/script/dom/client.rs
+++ b/components/script/dom/client.rs
@@ -2,9 +2,9 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::dom::bindings::codegen::Bindings::ClientBinding::{ClientMethods, Wrap};
 use crate::dom::bindings::codegen::Bindings::ClientBinding::FrameType;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::codegen::Bindings::ClientBinding::{ClientMethods, Wrap};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{DomRoot, MutNullableDom};
 use crate::dom::bindings::str::{DOMString, USVString};
 use crate::dom::serviceworker::ServiceWorker;
diff --git a/components/script/dom/compositionevent.rs b/components/script/dom/compositionevent.rs
index 7763ec41600..1ba8a1bf40a 100644
--- a/components/script/dom/compositionevent.rs
+++ b/components/script/dom/compositionevent.rs
@@ -2,7 +2,9 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::dom::bindings::codegen::Bindings::CompositionEventBinding::{self, CompositionEventMethods};
+use crate::dom::bindings::codegen::Bindings::CompositionEventBinding::{
+    self, CompositionEventMethods,
+};
 use crate::dom::bindings::codegen::Bindings::UIEventBinding::UIEventBinding::UIEventMethods;
 use crate::dom::bindings::error::Fallible;
 use crate::dom::bindings::reflector::reflect_dom_object;
diff --git a/components/script/dom/crypto.rs b/components/script/dom/crypto.rs
index a9a8efe2b4a..a1c3f590e3c 100644
--- a/components/script/dom/crypto.rs
+++ b/components/script/dom/crypto.rs
@@ -6,15 +6,15 @@ use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::CryptoBinding;
 use crate::dom::bindings::codegen::Bindings::CryptoBinding::CryptoMethods;
 use crate::dom::bindings::error::{Error, Fallible};
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::globalscope::GlobalScope;
 use dom_struct::dom_struct;
-use js::jsapi::{JSContext, JSObject};
 use js::jsapi::Type;
+use js::jsapi::{JSContext, JSObject};
 use js::rust::CustomAutoRooterGuard;
 use js::typedarray::ArrayBufferView;
-use servo_rand::{ServoRng, Rng};
+use servo_rand::{Rng, ServoRng};
 use std::ptr::NonNull;
 
 unsafe_no_jsmanaged_fields!(ServoRng);
diff --git a/components/script/dom/css.rs b/components/script/dom/css.rs
index a4539c17f76..10f0bf9ae6d 100644
--- a/components/script/dom/css.rs
+++ b/components/script/dom/css.rs
@@ -9,12 +9,12 @@ use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::window::Window;
 use crate::dom::worklet::Worklet;
-use cssparser::{Parser, ParserInput, serialize_identifier};
+use cssparser::{serialize_identifier, Parser, ParserInput};
 use dom_struct::dom_struct;
 use style::context::QuirksMode;
 use style::parser::ParserContext;
+use style::stylesheets::supports_rule::{parse_condition_or_declaration, Declaration};
 use style::stylesheets::CssRuleType;
-use style::stylesheets::supports_rule::{Declaration, parse_condition_or_declaration};
 use style_traits::ParsingMode;
 
 #[dom_struct]
diff --git a/components/script/dom/cssconditionrule.rs b/components/script/dom/cssconditionrule.rs
index 6b839b6ef4a..812a23cf2fc 100644
--- a/components/script/dom/cssconditionrule.rs
+++ b/components/script/dom/cssconditionrule.rs
@@ -11,7 +11,7 @@ use crate::dom::cssstylesheet::CSSStyleSheet;
 use crate::dom::csssupportsrule::CSSSupportsRule;
 use dom_struct::dom_struct;
 use servo_arc::Arc;
-use style::shared_lock::{SharedRwLock, Locked};
+use style::shared_lock::{Locked, SharedRwLock};
 use style::stylesheets::CssRules as StyleCssRules;
 
 #[dom_struct]
diff --git a/components/script/dom/cssgroupingrule.rs b/components/script/dom/cssgroupingrule.rs
index c7295f46b85..f0010aa0e64 100644
--- a/components/script/dom/cssgroupingrule.rs
+++ b/components/script/dom/cssgroupingrule.rs
@@ -13,7 +13,7 @@ use crate::dom::cssrulelist::{CSSRuleList, RulesSource};
 use crate::dom::cssstylesheet::CSSStyleSheet;
 use dom_struct::dom_struct;
 use servo_arc::Arc;
-use style::shared_lock::{SharedRwLock, Locked};
+use style::shared_lock::{Locked, SharedRwLock};
 use style::stylesheets::CssRules as StyleCssRules;
 
 #[dom_struct]
diff --git a/components/script/dom/csskeyframerule.rs b/components/script/dom/csskeyframerule.rs
index 948e5938fe3..4f253ea2572 100644
--- a/components/script/dom/csskeyframerule.rs
+++ b/components/script/dom/csskeyframerule.rs
@@ -2,9 +2,11 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::dom::bindings::codegen::Bindings::CSSKeyframeRuleBinding::{self, CSSKeyframeRuleMethods};
+use crate::dom::bindings::codegen::Bindings::CSSKeyframeRuleBinding::{
+    self, CSSKeyframeRuleMethods,
+};
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::{Dom, DomRoot, MutNullableDom};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::cssrule::{CSSRule, SpecificCSSRule};
diff --git a/components/script/dom/csskeyframesrule.rs b/components/script/dom/csskeyframesrule.rs
index 27280cc651e..54b1780e069 100644
--- a/components/script/dom/csskeyframesrule.rs
+++ b/components/script/dom/csskeyframesrule.rs
@@ -6,7 +6,7 @@ use crate::dom::bindings::codegen::Bindings::CSSKeyframesRuleBinding;
 use crate::dom::bindings::codegen::Bindings::CSSKeyframesRuleBinding::CSSKeyframesRuleMethods;
 use crate::dom::bindings::error::ErrorResult;
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::{DomRoot, MutNullableDom};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::csskeyframerule::CSSKeyframeRule;
@@ -18,7 +18,7 @@ use cssparser::{Parser, ParserInput};
 use dom_struct::dom_struct;
 use servo_arc::Arc;
 use style::shared_lock::{Locked, ToCssWithGuard};
-use style::stylesheets::keyframes_rule::{KeyframesRule, Keyframe, KeyframeSelector};
+use style::stylesheets::keyframes_rule::{Keyframe, KeyframeSelector, KeyframesRule};
 use style::values::KeyframesName;
 
 #[dom_struct]
diff --git a/components/script/dom/cssmediarule.rs b/components/script/dom/cssmediarule.rs
index fc7608a476f..3704168dd7b 100644
--- a/components/script/dom/cssmediarule.rs
+++ b/components/script/dom/cssmediarule.rs
@@ -5,7 +5,7 @@
 use crate::dom::bindings::codegen::Bindings::CSSMediaRuleBinding;
 use crate::dom::bindings::codegen::Bindings::CSSMediaRuleBinding::CSSMediaRuleMethods;
 use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowBinding::WindowMethods;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::{DomRoot, MutNullableDom};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::cssconditionrule::CSSConditionRule;
diff --git a/components/script/dom/cssrulelist.rs b/components/script/dom/cssrulelist.rs
index c5889eb066c..870a85866e8 100644
--- a/components/script/dom/cssrulelist.rs
+++ b/components/script/dom/cssrulelist.rs
@@ -6,7 +6,7 @@ use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::CSSRuleListBinding;
 use crate::dom::bindings::codegen::Bindings::CSSRuleListBinding::CSSRuleListMethods;
 use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot, MutNullableDom};
 use crate::dom::csskeyframerule::CSSKeyframeRule;
 use crate::dom::cssrule::CSSRule;
diff --git a/components/script/dom/cssstyledeclaration.rs b/components/script/dom/cssstyledeclaration.rs
index 1fc7f5b6961..bc3fbe0f655 100644
--- a/components/script/dom/cssstyledeclaration.rs
+++ b/components/script/dom/cssstyledeclaration.rs
@@ -2,23 +2,29 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::dom::bindings::codegen::Bindings::CSSStyleDeclarationBinding::{self, CSSStyleDeclarationMethods};
+use crate::dom::bindings::codegen::Bindings::CSSStyleDeclarationBinding::{
+    self, CSSStyleDeclarationMethods,
+};
 use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
 use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::cssrule::CSSRule;
 use crate::dom::element::Element;
-use crate::dom::node::{Node, window_from_node, document_from_node};
+use crate::dom::node::{document_from_node, window_from_node, Node};
 use crate::dom::window::Window;
 use dom_struct::dom_struct;
 use servo_arc::Arc;
 use servo_url::ServoUrl;
 use style::attr::AttrValue;
-use style::properties::{Importance, PropertyDeclarationBlock, PropertyId, LonghandId, ShorthandId};
-use style::properties::{parse_one_declaration_into, parse_style_attribute, SourcePropertyDeclaration};
+use style::properties::{
+    parse_one_declaration_into, parse_style_attribute, SourcePropertyDeclaration,
+};
+use style::properties::{
+    Importance, LonghandId, PropertyDeclarationBlock, PropertyId, ShorthandId,
+};
 use style::selector_parser::PseudoElement;
 use style::shared_lock::Locked;
 use style_traits::ParsingMode;
diff --git a/components/script/dom/cssstylerule.rs b/components/script/dom/cssstylerule.rs
index 662ea8bb542..0e9758f25fb 100644
--- a/components/script/dom/cssstylerule.rs
+++ b/components/script/dom/cssstylerule.rs
@@ -5,22 +5,22 @@
 use crate::dom::bindings::codegen::Bindings::CSSStyleRuleBinding::{self, CSSStyleRuleMethods};
 use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowBinding::WindowMethods;
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::{Dom, DomRoot, MutNullableDom};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::cssrule::{CSSRule, SpecificCSSRule};
 use crate::dom::cssstyledeclaration::{CSSModificationAccess, CSSStyleDeclaration, CSSStyleOwner};
 use crate::dom::cssstylesheet::CSSStyleSheet;
 use crate::dom::window::Window;
-use cssparser::{Parser as CssParser, ParserInput as CssParserInput};
 use cssparser::ToCss;
+use cssparser::{Parser as CssParser, ParserInput as CssParserInput};
 use dom_struct::dom_struct;
 use selectors::parser::SelectorList;
 use servo_arc::Arc;
 use std::mem;
 use style::selector_parser::SelectorParser;
 use style::shared_lock::{Locked, ToCssWithGuard};
-use style::stylesheets::{StyleRule, Origin};
+use style::stylesheets::{Origin, StyleRule};
 
 #[dom_struct]
 pub struct CSSStyleRule {
diff --git a/components/script/dom/cssstylevalue.rs b/components/script/dom/cssstylevalue.rs
index 668c8bbec98..bb19d351543 100644
--- a/components/script/dom/cssstylevalue.rs
+++ b/components/script/dom/cssstylevalue.rs
@@ -4,8 +4,8 @@
 
 use crate::dom::bindings::codegen::Bindings::CSSStyleValueBinding::CSSStyleValueMethods;
 use crate::dom::bindings::codegen::Bindings::CSSStyleValueBinding::Wrap;
-use crate::dom::bindings::reflector::Reflector;
 use crate::dom::bindings::reflector::reflect_dom_object;
+use crate::dom::bindings::reflector::Reflector;
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::globalscope::GlobalScope;
diff --git a/components/script/dom/csssupportsrule.rs b/components/script/dom/csssupportsrule.rs
index 4c122595bb5..b1a1e6b5be4 100644
--- a/components/script/dom/csssupportsrule.rs
+++ b/components/script/dom/csssupportsrule.rs
@@ -4,7 +4,7 @@
 
 use crate::dom::bindings::codegen::Bindings::CSSSupportsRuleBinding;
 use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowBinding::WindowMethods;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::cssconditionrule::CSSConditionRule;
@@ -16,8 +16,8 @@ use dom_struct::dom_struct;
 use servo_arc::Arc;
 use style::parser::ParserContext;
 use style::shared_lock::{Locked, ToCssWithGuard};
-use style::stylesheets::{CssRuleType, SupportsRule};
 use style::stylesheets::supports_rule::SupportsCondition;
+use style::stylesheets::{CssRuleType, SupportsRule};
 use style_traits::{ParsingMode, ToCss};
 
 #[dom_struct]
diff --git a/components/script/dom/customelementregistry.rs b/components/script/dom/customelementregistry.rs
index 1fdf1cfc4a1..8de16faf1d6 100644
--- a/components/script/dom/customelementregistry.rs
+++ b/components/script/dom/customelementregistry.rs
@@ -11,10 +11,14 @@ use crate::dom::bindings::codegen::Bindings::CustomElementRegistryBinding::Eleme
 use crate::dom::bindings::codegen::Bindings::ElementBinding::ElementMethods;
 use crate::dom::bindings::codegen::Bindings::FunctionBinding::Function;
 use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowBinding::WindowMethods;
-use crate::dom::bindings::conversions::{ConversionResult, FromJSValConvertible, StringificationBehavior};
-use crate::dom::bindings::error::{Error, ErrorResult, Fallible, report_pending_exception, throw_dom_exception};
+use crate::dom::bindings::conversions::{
+    ConversionResult, FromJSValConvertible, StringificationBehavior,
+};
+use crate::dom::bindings::error::{
+    report_pending_exception, throw_dom_exception, Error, ErrorResult, Fallible,
+};
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::document::Document;
@@ -22,7 +26,7 @@ use crate::dom::domexception::{DOMErrorName, DOMException};
 use crate::dom::element::{CustomElementState, Element};
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::htmlelement::HTMLElement;
-use crate::dom::node::{document_from_node, Node, window_from_node};
+use crate::dom::node::{document_from_node, window_from_node, Node};
 use crate::dom::promise::Promise;
 use crate::dom::window::Window;
 use crate::microtask::Microtask;
@@ -31,11 +35,11 @@ use dom_struct::dom_struct;
 use html5ever::{LocalName, Namespace, Prefix};
 use js::conversions::ToJSValConvertible;
 use js::glue::UnwrapObject;
-use js::jsapi::{Heap, IsCallable, IsConstructor, HandleValueArray};
+use js::jsapi::{HandleValueArray, Heap, IsCallable, IsConstructor};
 use js::jsapi::{JSAutoCompartment, JSContext, JSObject};
 use js::jsval::{JSVal, NullValue, ObjectValue, UndefinedValue};
+use js::rust::wrappers::{Construct1, JS_GetProperty, JS_SameValue};
 use js::rust::{HandleObject, HandleValue, MutableHandleValue};
-use js::rust::wrappers::{JS_GetProperty, Construct1, JS_SameValue};
 use std::cell::Cell;
 use std::collections::{HashMap, VecDeque};
 use std::mem;
diff --git a/components/script/dom/dedicatedworkerglobalscope.rs b/components/script/dom/dedicatedworkerglobalscope.rs
index f6fad393fc3..afe0908c543 100644
--- a/components/script/dom/dedicatedworkerglobalscope.rs
+++ b/components/script/dom/dedicatedworkerglobalscope.rs
@@ -4,8 +4,8 @@
 
 use crate::devtools;
 use crate::dom::abstractworker::{SimpleWorkerErrorHandler, WorkerScriptMsg};
+use crate::dom::abstractworkerglobalscope::{run_worker_event_loop, WorkerEventLoopMethods};
 use crate::dom::abstractworkerglobalscope::{SendableWorkerScriptChan, WorkerThreadWorkerChan};
-use crate::dom::abstractworkerglobalscope::{WorkerEventLoopMethods, run_worker_event_loop};
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::DedicatedWorkerGlobalScopeBinding;
 use crate::dom::bindings::codegen::Bindings::DedicatedWorkerGlobalScopeBinding::DedicatedWorkerGlobalScopeMethods;
@@ -22,28 +22,28 @@ use crate::dom::globalscope::GlobalScope;
 use crate::dom::messageevent::MessageEvent;
 use crate::dom::worker::{TrustedWorkerAddress, Worker};
 use crate::dom::workerglobalscope::WorkerGlobalScope;
-use crate::script_runtime::{CommonScriptMsg, ScriptChan, ScriptPort, new_rt_and_cx, Runtime};
 use crate::script_runtime::ScriptThreadEventCategory::WorkerEvent;
+use crate::script_runtime::{new_rt_and_cx, CommonScriptMsg, Runtime, ScriptChan, ScriptPort};
 use crate::task_queue::{QueuedTask, QueuedTaskConversion, TaskQueue};
 use crate::task_source::TaskSourceName;
 use devtools_traits::DevtoolScriptControlMsg;
 use dom_struct::dom_struct;
 use ipc_channel::ipc::{self, IpcReceiver, IpcSender};
 use ipc_channel::router::ROUTER;
-use js::jsapi::{JSAutoCompartment, JSContext};
 use js::jsapi::JS_AddInterruptCallback;
+use js::jsapi::{JSAutoCompartment, JSContext};
 use js::jsval::UndefinedValue;
 use js::rust::HandleValue;
 use msg::constellation_msg::TopLevelBrowsingContextId;
-use net_traits::{IpcSend, load_whole_resource};
 use net_traits::request::{CredentialsMode, Destination, RequestInit};
+use net_traits::{load_whole_resource, IpcSend};
 use script_traits::{TimerEvent, TimerSource, WorkerGlobalScopeInit, WorkerScriptLoadOrigin};
-use servo_channel::{channel, route_ipc_receiver_to_new_servo_sender, Sender, Receiver};
+use servo_channel::{channel, route_ipc_receiver_to_new_servo_sender, Receiver, Sender};
 use servo_rand::random;
 use servo_url::ServoUrl;
 use std::mem::replace;
-use std::sync::Arc;
 use std::sync::atomic::AtomicBool;
+use std::sync::Arc;
 use std::thread;
 use style::thread_state::{self, ThreadState};
 
diff --git a/components/script/dom/dissimilaroriginlocation.rs b/components/script/dom/dissimilaroriginlocation.rs
index feea9d93b21..e2111008eb3 100644
--- a/components/script/dom/dissimilaroriginlocation.rs
+++ b/components/script/dom/dissimilaroriginlocation.rs
@@ -5,8 +5,8 @@
 use crate::dom::bindings::codegen::Bindings::DissimilarOriginLocationBinding;
 use crate::dom::bindings::codegen::Bindings::DissimilarOriginLocationBinding::DissimilarOriginLocationMethods;
 use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
-use crate::dom::bindings::reflector::Reflector;
 use crate::dom::bindings::reflector::reflect_dom_object;
+use crate::dom::bindings::reflector::Reflector;
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::bindings::str::USVString;
diff --git a/components/script/dom/document.rs b/components/script/dom/document.rs
index dbbd1d1c89e..a8df59ca21c 100644
--- a/components/script/dom/document.rs
+++ b/components/script/dom/document.rs
@@ -4,32 +4,38 @@
 
 use crate::cookie_rs;
 use crate::document_loader::{DocumentLoader, LoadType};
-use crate::dom::activation::{ActivationSource, synthetic_click_activation};
+use crate::dom::activation::{synthetic_click_activation, ActivationSource};
 use crate::dom::attr::Attr;
 use crate::dom::beforeunloadevent::BeforeUnloadEvent;
 use crate::dom::bindings::callback::ExceptionHandling;
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::BeforeUnloadEventBinding::BeforeUnloadEventBinding::BeforeUnloadEventMethods;
 use crate::dom::bindings::codegen::Bindings::DocumentBinding;
-use crate::dom::bindings::codegen::Bindings::DocumentBinding::{DocumentMethods, DocumentReadyState};
 use crate::dom::bindings::codegen::Bindings::DocumentBinding::ElementCreationOptions;
+use crate::dom::bindings::codegen::Bindings::DocumentBinding::{
+    DocumentMethods, DocumentReadyState,
+};
 use crate::dom::bindings::codegen::Bindings::EventBinding::EventBinding::EventMethods;
 use crate::dom::bindings::codegen::Bindings::HTMLIFrameElementBinding::HTMLIFrameElementBinding::HTMLIFrameElementMethods;
 use crate::dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
 use crate::dom::bindings::codegen::Bindings::NodeFilterBinding::NodeFilter;
 use crate::dom::bindings::codegen::Bindings::PerformanceBinding::PerformanceMethods;
 use crate::dom::bindings::codegen::Bindings::TouchBinding::TouchMethods;
-use crate::dom::bindings::codegen::Bindings::WindowBinding::{FrameRequestCallback, ScrollBehavior, WindowMethods};
+use crate::dom::bindings::codegen::Bindings::WindowBinding::{
+    FrameRequestCallback, ScrollBehavior, WindowMethods,
+};
 use crate::dom::bindings::codegen::UnionTypes::NodeOrString;
 use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
 use crate::dom::bindings::inheritance::{Castable, ElementTypeId, HTMLElementTypeId, NodeTypeId};
 use crate::dom::bindings::num::Finite;
 use crate::dom::bindings::refcounted::{Trusted, TrustedPromise};
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::{Dom, DomRoot, LayoutDom, MutNullableDom, RootedReference};
 use crate::dom::bindings::str::{DOMString, USVString};
-use crate::dom::bindings::xmlname::{namespace_from_domstring, validate_and_extract, xml_name_type};
 use crate::dom::bindings::xmlname::XMLName::InvalidXMLName;
+use crate::dom::bindings::xmlname::{
+    namespace_from_domstring, validate_and_extract, xml_name_type,
+};
 use crate::dom::closeevent::CloseEvent;
 use crate::dom::comment::Comment;
 use crate::dom::cssstylesheet::CSSStyleSheet;
@@ -38,8 +44,10 @@ use crate::dom::customevent::CustomEvent;
 use crate::dom::documentfragment::DocumentFragment;
 use crate::dom::documenttype::DocumentType;
 use crate::dom::domimplementation::DOMImplementation;
-use crate::dom::element::{Element, ElementCreator, ElementPerformFullscreenEnter, ElementPerformFullscreenExit};
 use crate::dom::element::CustomElementCreationMode;
+use crate::dom::element::{
+    Element, ElementCreator, ElementPerformFullscreenEnter, ElementPerformFullscreenExit,
+};
 use crate::dom::errorevent::ErrorEvent;
 use crate::dom::event::{Event, EventBubbles, EventCancelable, EventDefault, EventStatus};
 use crate::dom::eventtarget::EventTarget;
@@ -65,9 +73,9 @@ use crate::dom::keyboardevent::KeyboardEvent;
 use crate::dom::location::Location;
 use crate::dom::messageevent::MessageEvent;
 use crate::dom::mouseevent::MouseEvent;
-use crate::dom::node::{self, CloneChildrenFlag, document_from_node, window_from_node};
-use crate::dom::node::{Node, NodeDamage, NodeFlags, LayoutNodeHelpers};
 use crate::dom::node::VecPreOrderInsertionHelper;
+use crate::dom::node::{self, document_from_node, window_from_node, CloneChildrenFlag};
+use crate::dom::node::{LayoutNodeHelpers, Node, NodeDamage, NodeFlags};
 use crate::dom::nodeiterator::NodeIterator;
 use crate::dom::nodelist::NodeList;
 use crate::dom::pagetransitionevent::PageTransitionEvent;
@@ -102,18 +110,21 @@ use euclid::Point2D;
 use html5ever::{LocalName, Namespace, QualName};
 use hyper_serde::Serde;
 use ipc_channel::ipc::{self, IpcSender};
-use js::jsapi::{JSContext, JSObject, JSRuntime};
 use js::jsapi::JS_GetRuntime;
+use js::jsapi::{JSContext, JSObject, JSRuntime};
 use keyboard_types::{Key, KeyState, Modifiers};
-use metrics::{InteractiveFlag, InteractiveMetrics, InteractiveWindow, ProfilerMetadataFactory, ProgressiveWebMetric};
+use metrics::{
+    InteractiveFlag, InteractiveMetrics, InteractiveWindow, ProfilerMetadataFactory,
+    ProgressiveWebMetric,
+};
 use mime::{self, Mime};
 use msg::constellation_msg::BrowsingContextId;
-use net_traits::{FetchResponseMsg, IpcSend, ReferrerPolicy};
-use net_traits::CookieSource::NonHTTP;
-use net_traits::CoreResourceMsg::{GetCookiesForUrl, SetCookiesForUrl};
 use net_traits::pub_domains::is_pub_domain;
 use net_traits::request::RequestInit;
 use net_traits::response::HttpsState;
+use net_traits::CookieSource::NonHTTP;
+use net_traits::CoreResourceMsg::{GetCookiesForUrl, SetCookiesForUrl};
+use net_traits::{FetchResponseMsg, IpcSend, ReferrerPolicy};
 use num_traits::ToPrimitive;
 use profile_traits::ipc as profile_ipc;
 use profile_traits::time::{TimerMetadata, TimerMetadataFrameType, TimerMetadataReflowType};
@@ -127,8 +138,8 @@ use servo_config::prefs::PREFS;
 use servo_url::{ImmutableOrigin, MutableOrigin, ServoUrl};
 use std::borrow::ToOwned;
 use std::cell::{Cell, Ref, RefMut};
-use std::collections::{HashMap, HashSet, VecDeque};
 use std::collections::hash_map::Entry::{Occupied, Vacant};
+use std::collections::{HashMap, HashSet, VecDeque};
 use std::default::Default;
 use std::fmt;
 use std::mem;
@@ -143,10 +154,10 @@ use style::selector_parser::{RestyleDamage, Snapshot};
 use style::shared_lock::{SharedRwLock as StyleSharedRwLock, SharedRwLockReadGuard};
 use style::str::{split_html_space_chars, str_join};
 use style::stylesheet_set::DocumentStylesheetSet;
-use style::stylesheets::{CssRule, Stylesheet, Origin, OriginSet};
+use style::stylesheets::{CssRule, Origin, OriginSet, Stylesheet};
 use time;
-use url::Host;
 use url::percent_encoding::percent_decode;
+use url::Host;
 
 /// The number of times we are allowed to see spurious `requestAnimationFrame()` calls before
 /// falling back to fake ones.
diff --git a/components/script/dom/documentfragment.rs b/components/script/dom/documentfragment.rs
index 43b7a8d4c5a..b347380e972 100644
--- a/components/script/dom/documentfragment.rs
+++ b/components/script/dom/documentfragment.rs
@@ -13,7 +13,7 @@ use crate::dom::bindings::str::DOMString;
 use crate::dom::document::Document;
 use crate::dom::element::Element;
 use crate::dom::htmlcollection::HTMLCollection;
-use crate::dom::node::{Node, window_from_node};
+use crate::dom::node::{window_from_node, Node};
 use crate::dom::nodelist::NodeList;
 use crate::dom::window::Window;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/domexception.rs b/components/script/dom/domexception.rs
index 623a5b3adf2..e61f76caf96 100644
--- a/components/script/dom/domexception.rs
+++ b/components/script/dom/domexception.rs
@@ -5,7 +5,7 @@
 use crate::dom::bindings::codegen::Bindings::DOMExceptionBinding;
 use crate::dom::bindings::codegen::Bindings::DOMExceptionBinding::DOMExceptionConstants;
 use crate::dom::bindings::codegen::Bindings::DOMExceptionBinding::DOMExceptionMethods;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::globalscope::GlobalScope;
diff --git a/components/script/dom/domimplementation.rs b/components/script/dom/domimplementation.rs
index 6ebc5b6fe08..29a3e595793 100644
--- a/components/script/dom/domimplementation.rs
+++ b/components/script/dom/domimplementation.rs
@@ -5,16 +5,18 @@
 use crate::document_loader::DocumentLoader;
 use crate::dom::bindings::codegen::Bindings::DOMImplementationBinding;
 use crate::dom::bindings::codegen::Bindings::DOMImplementationBinding::DOMImplementationMethods;
-use crate::dom::bindings::codegen::Bindings::DocumentBinding::{DocumentMethods, ElementCreationOptions};
+use crate::dom::bindings::codegen::Bindings::DocumentBinding::{
+    DocumentMethods, ElementCreationOptions,
+};
 use crate::dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
 use crate::dom::bindings::error::Fallible;
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::bindings::xmlname::{namespace_from_domstring, validate_qualified_name};
-use crate::dom::document::{Document, HasBrowsingContext, IsHTMLDocument};
 use crate::dom::document::DocumentSource;
+use crate::dom::document::{Document, HasBrowsingContext, IsHTMLDocument};
 use crate::dom::documenttype::DocumentType;
 use crate::dom::htmlbodyelement::HTMLBodyElement;
 use crate::dom::htmlheadelement::HTMLHeadElement;
diff --git a/components/script/dom/dommatrix.rs b/components/script/dom/dommatrix.rs
index 12fcdc5781d..4e4cf650f9e 100644
--- a/components/script/dom/dommatrix.rs
+++ b/components/script/dom/dommatrix.rs
@@ -2,13 +2,17 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::dom::bindings::codegen::Bindings::DOMMatrixBinding::{Wrap, DOMMatrixMethods, DOMMatrixInit};
+use crate::dom::bindings::codegen::Bindings::DOMMatrixBinding::{
+    DOMMatrixInit, DOMMatrixMethods, Wrap,
+};
 use crate::dom::bindings::codegen::Bindings::DOMMatrixReadOnlyBinding::DOMMatrixReadOnlyMethods;
 use crate::dom::bindings::error::Fallible;
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::reflector::reflect_dom_object;
 use crate::dom::bindings::root::DomRoot;
-use crate::dom::dommatrixreadonly::{dommatrixinit_to_matrix, DOMMatrixReadOnly, entries_to_matrix};
+use crate::dom::dommatrixreadonly::{
+    dommatrixinit_to_matrix, entries_to_matrix, DOMMatrixReadOnly,
+};
 use crate::dom::globalscope::GlobalScope;
 use dom_struct::dom_struct;
 use euclid::Transform3D;
diff --git a/components/script/dom/dommatrixreadonly.rs b/components/script/dom/dommatrixreadonly.rs
index 65278b1f7d1..8edd6222480 100644
--- a/components/script/dom/dommatrixreadonly.rs
+++ b/components/script/dom/dommatrixreadonly.rs
@@ -4,7 +4,9 @@
 
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::DOMMatrixBinding::{DOMMatrixInit, DOMMatrixMethods};
-use crate::dom::bindings::codegen::Bindings::DOMMatrixReadOnlyBinding::{DOMMatrixReadOnlyMethods, Wrap};
+use crate::dom::bindings::codegen::Bindings::DOMMatrixReadOnlyBinding::{
+    DOMMatrixReadOnlyMethods, Wrap,
+};
 use crate::dom::bindings::codegen::Bindings::DOMPointBinding::DOMPointInit;
 use crate::dom::bindings::error;
 use crate::dom::bindings::error::Fallible;
@@ -14,11 +16,11 @@ use crate::dom::dommatrix::DOMMatrix;
 use crate::dom::dompoint::DOMPoint;
 use crate::dom::globalscope::GlobalScope;
 use dom_struct::dom_struct;
-use euclid::{Transform3D, Angle};
-use js::jsapi::{JSObject, JSContext};
+use euclid::{Angle, Transform3D};
+use js::jsapi::{JSContext, JSObject};
 use js::rust::CustomAutoRooterGuard;
-use js::typedarray::{Float32Array, Float64Array};
 use js::typedarray::CreateWith;
+use js::typedarray::{Float32Array, Float64Array};
 use std::cell::{Cell, Ref};
 use std::f64;
 use std::ptr;
diff --git a/components/script/dom/domparser.rs b/components/script/dom/domparser.rs
index 334137499e7..8ded7107698 100644
--- a/components/script/dom/domparser.rs
+++ b/components/script/dom/domparser.rs
@@ -12,11 +12,11 @@ use crate::dom::bindings::codegen::Bindings::DOMParserBinding::SupportedType::Te
 use crate::dom::bindings::codegen::Bindings::DocumentBinding::DocumentReadyState;
 use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
 use crate::dom::bindings::error::Fallible;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::DOMString;
-use crate::dom::document::{Document, HasBrowsingContext, IsHTMLDocument};
 use crate::dom::document::DocumentSource;
+use crate::dom::document::{Document, HasBrowsingContext, IsHTMLDocument};
 use crate::dom::servoparser::ServoParser;
 use crate::dom::window::Window;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/dompoint.rs b/components/script/dom/dompoint.rs
index 456153b6504..c0d89f8420d 100644
--- a/components/script/dom/dompoint.rs
+++ b/components/script/dom/dompoint.rs
@@ -2,7 +2,9 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::dom::bindings::codegen::Bindings::DOMPointBinding::{DOMPointInit, DOMPointMethods, Wrap};
+use crate::dom::bindings::codegen::Bindings::DOMPointBinding::{
+    DOMPointInit, DOMPointMethods, Wrap,
+};
 use crate::dom::bindings::codegen::Bindings::DOMPointReadOnlyBinding::DOMPointReadOnlyMethods;
 use crate::dom::bindings::error::Fallible;
 use crate::dom::bindings::reflector::reflect_dom_object;
diff --git a/components/script/dom/dompointreadonly.rs b/components/script/dom/dompointreadonly.rs
index ea6414aa186..ecda5c4e0b4 100644
--- a/components/script/dom/dompointreadonly.rs
+++ b/components/script/dom/dompointreadonly.rs
@@ -2,9 +2,11 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::dom::bindings::codegen::Bindings::DOMPointReadOnlyBinding::{DOMPointReadOnlyMethods, Wrap};
+use crate::dom::bindings::codegen::Bindings::DOMPointReadOnlyBinding::{
+    DOMPointReadOnlyMethods, Wrap,
+};
 use crate::dom::bindings::error::Fallible;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::globalscope::GlobalScope;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/domquad.rs b/components/script/dom/domquad.rs
index 3d0cb09b733..f65088dde8d 100644
--- a/components/script/dom/domquad.rs
+++ b/components/script/dom/domquad.rs
@@ -6,7 +6,7 @@ use crate::dom::bindings::codegen::Bindings::DOMPointBinding::{DOMPointInit, DOM
 use crate::dom::bindings::codegen::Bindings::DOMQuadBinding::{DOMQuadInit, DOMQuadMethods, Wrap};
 use crate::dom::bindings::codegen::Bindings::DOMRectReadOnlyBinding::DOMRectInit;
 use crate::dom::bindings::error::Fallible;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::dompoint::DOMPoint;
 use crate::dom::domrect::DOMRect;
diff --git a/components/script/dom/domrectreadonly.rs b/components/script/dom/domrectreadonly.rs
index e1bb8252b8d..96170f6a489 100644
--- a/components/script/dom/domrectreadonly.rs
+++ b/components/script/dom/domrectreadonly.rs
@@ -2,9 +2,11 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::dom::bindings::codegen::Bindings::DOMRectReadOnlyBinding::{DOMRectReadOnlyMethods, Wrap};
+use crate::dom::bindings::codegen::Bindings::DOMRectReadOnlyBinding::{
+    DOMRectReadOnlyMethods, Wrap,
+};
 use crate::dom::bindings::error::Fallible;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::globalscope::GlobalScope;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/domstringmap.rs b/components/script/dom/domstringmap.rs
index d62b4fd49f9..10da1af9299 100644
--- a/components/script/dom/domstringmap.rs
+++ b/components/script/dom/domstringmap.rs
@@ -5,7 +5,7 @@
 use crate::dom::bindings::codegen::Bindings::DOMStringMapBinding;
 use crate::dom::bindings::codegen::Bindings::DOMStringMapBinding::DOMStringMapMethods;
 use crate::dom::bindings::error::ErrorResult;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::htmlelement::HTMLElement;
diff --git a/components/script/dom/domtokenlist.rs b/components/script/dom/domtokenlist.rs
index 4c74b69d3a8..902197795ff 100644
--- a/components/script/dom/domtokenlist.rs
+++ b/components/script/dom/domtokenlist.rs
@@ -6,7 +6,7 @@ use crate::dom::attr::Attr;
 use crate::dom::bindings::codegen::Bindings::DOMTokenListBinding;
 use crate::dom::bindings::codegen::Bindings::DOMTokenListBinding::DOMTokenListMethods;
 use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::element::Element;
diff --git a/components/script/dom/element.rs b/components/script/dom/element.rs
index 33654ea5149..8f65f49b7df 100644
--- a/components/script/dom/element.rs
+++ b/components/script/dom/element.rs
@@ -15,8 +15,8 @@ use crate::dom::bindings::codegen::Bindings::EventBinding::EventMethods;
 use crate::dom::bindings::codegen::Bindings::FunctionBinding::Function;
 use crate::dom::bindings::codegen::Bindings::HTMLTemplateElementBinding::HTMLTemplateElementMethods;
 use crate::dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
-use crate::dom::bindings::codegen::Bindings::WindowBinding::{ScrollBehavior, ScrollToOptions};
 use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
+use crate::dom::bindings::codegen::Bindings::WindowBinding::{ScrollBehavior, ScrollToOptions};
 use crate::dom::bindings::codegen::UnionTypes::NodeOrString;
 use crate::dom::bindings::conversions::DerivedFrom;
 use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
@@ -25,11 +25,15 @@ use crate::dom::bindings::refcounted::{Trusted, TrustedPromise};
 use crate::dom::bindings::reflector::DomObject;
 use crate::dom::bindings::root::{Dom, DomRoot, LayoutDom, MutNullableDom, RootedReference};
 use crate::dom::bindings::str::DOMString;
-use crate::dom::bindings::xmlname::{namespace_from_domstring, validate_and_extract, xml_name_type};
 use crate::dom::bindings::xmlname::XMLName::InvalidXMLName;
+use crate::dom::bindings::xmlname::{
+    namespace_from_domstring, validate_and_extract, xml_name_type,
+};
 use crate::dom::characterdata::CharacterData;
 use crate::dom::create::create_element;
-use crate::dom::customelementregistry::{CallbackReaction, CustomElementDefinition, CustomElementReaction};
+use crate::dom::customelementregistry::{
+    CallbackReaction, CustomElementDefinition, CustomElementReaction,
+};
 use crate::dom::document::{Document, LayoutDocumentHelpers};
 use crate::dom::documentfragment::DocumentFragment;
 use crate::dom::domrect::DOMRect;
@@ -59,41 +63,43 @@ use crate::dom::htmlstyleelement::HTMLStyleElement;
 use crate::dom::htmltablecellelement::{HTMLTableCellElement, HTMLTableCellElementLayoutHelpers};
 use crate::dom::htmltableelement::{HTMLTableElement, HTMLTableElementLayoutHelpers};
 use crate::dom::htmltablerowelement::{HTMLTableRowElement, HTMLTableRowElementLayoutHelpers};
-use crate::dom::htmltablesectionelement::{HTMLTableSectionElement, HTMLTableSectionElementLayoutHelpers};
+use crate::dom::htmltablesectionelement::{
+    HTMLTableSectionElement, HTMLTableSectionElementLayoutHelpers,
+};
 use crate::dom::htmltemplateelement::HTMLTemplateElement;
 use crate::dom::htmltextareaelement::{HTMLTextAreaElement, LayoutHTMLTextAreaElementHelpers};
 use crate::dom::mutationobserver::{Mutation, MutationObserver};
 use crate::dom::namednodemap::NamedNodeMap;
+use crate::dom::node::{document_from_node, window_from_node};
 use crate::dom::node::{ChildrenMutation, LayoutNodeHelpers, Node};
 use crate::dom::node::{NodeDamage, NodeFlags, UnbindContext};
-use crate::dom::node::{document_from_node, window_from_node};
 use crate::dom::nodelist::NodeList;
 use crate::dom::promise::Promise;
 use crate::dom::servoparser::ServoParser;
 use crate::dom::text::Text;
 use crate::dom::validation::Validatable;
-use crate::dom::virtualmethods::{VirtualMethods, vtable_for};
+use crate::dom::virtualmethods::{vtable_for, VirtualMethods};
 use crate::dom::window::ReflowReason;
 use crate::script_thread::ScriptThread;
 use crate::stylesheet_loader::StylesheetOwner;
 use crate::task::TaskOnce;
 use devtools_traits::AttrInfo;
 use dom_struct::dom_struct;
-use html5ever::{Prefix, LocalName, Namespace, QualName};
 use html5ever::serialize;
 use html5ever::serialize::SerializeOpts;
 use html5ever::serialize::TraversalScope;
 use html5ever::serialize::TraversalScope::{ChildrenOnly, IncludeNode};
+use html5ever::{LocalName, Namespace, Prefix, QualName};
 use js::jsapi::Heap;
 use js::jsval::JSVal;
 use msg::constellation_msg::InputMethodType;
 use net_traits::request::CorsSettings;
 use ref_filter_map::ref_filter_map;
 use script_layout_interface::message::ReflowGoal;
-use selectors::Element as SelectorsElement;
-use selectors::attr::{AttrSelectorOperation, NamespaceConstraint, CaseSensitivity};
+use selectors::attr::{AttrSelectorOperation, CaseSensitivity, NamespaceConstraint};
 use selectors::matching::{ElementSelectorFlags, MatchingContext};
 use selectors::sink::Push;
+use selectors::Element as SelectorsElement;
 use servo_arc::Arc;
 use servo_atoms::Atom;
 use std::borrow::Cow;
@@ -103,24 +109,28 @@ use std::fmt;
 use std::mem;
 use std::rc::Rc;
 use std::str::FromStr;
-use style::CaseSensitivityExt;
 use style::applicable_declarations::ApplicableDeclarationBlock;
 use style::attr::{AttrValue, LengthOrPercentageOrAuto};
 use style::context::QuirksMode;
 use style::dom_apis;
 use style::element_state::ElementState;
 use style::invalidation::element::restyle_hints::RestyleHint;
-use style::properties::{ComputedValues, Importance, PropertyDeclaration};
-use style::properties::{PropertyDeclarationBlock, parse_style_attribute};
-use style::properties::longhands::{self, background_image, border_spacing, font_family, font_size};
+use style::properties::longhands::{
+    self, background_image, border_spacing, font_family, font_size,
+};
 use style::properties::longhands::{overflow_x, overflow_y};
+use style::properties::{parse_style_attribute, PropertyDeclarationBlock};
+use style::properties::{ComputedValues, Importance, PropertyDeclaration};
 use style::rule_tree::CascadeLevel;
-use style::selector_parser::{NonTSPseudoClass, PseudoElement, RestyleDamage, SelectorImpl, SelectorParser};
 use style::selector_parser::extended_filtering;
-use style::shared_lock::{SharedRwLock, Locked};
+use style::selector_parser::{
+    NonTSPseudoClass, PseudoElement, RestyleDamage, SelectorImpl, SelectorParser,
+};
+use style::shared_lock::{Locked, SharedRwLock};
 use style::thread_state;
+use style::values::{computed, specified};
 use style::values::{CSSFloat, Either};
-use style::values::{specified, computed};
+use style::CaseSensitivityExt;
 use xml5ever::serialize as xmlSerialize;
 use xml5ever::serialize::SerializeOpts as XmlSerializeOpts;
 use xml5ever::serialize::TraversalScope as XmlTraversalScope;
diff --git a/components/script/dom/event.rs b/components/script/dom/event.rs
index d7151dbdcc1..2cf3b0b2bc8 100644
--- a/components/script/dom/event.rs
+++ b/components/script/dom/event.rs
@@ -9,7 +9,7 @@ use crate::dom::bindings::codegen::Bindings::EventBinding::{EventConstants, Even
 use crate::dom::bindings::error::Fallible;
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::refcounted::Trusted;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{DomRoot, MutNullableDom, RootedReference};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::document::Document;
diff --git a/components/script/dom/eventsource.rs b/components/script/dom/eventsource.rs
index a34042263ce..b77cb5c34b2 100644
--- a/components/script/dom/eventsource.rs
+++ b/components/script/dom/eventsource.rs
@@ -3,11 +3,13 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use crate::dom::bindings::cell::DomRefCell;
-use crate::dom::bindings::codegen::Bindings::EventSourceBinding::{EventSourceInit, EventSourceMethods, Wrap};
+use crate::dom::bindings::codegen::Bindings::EventSourceBinding::{
+    EventSourceInit, EventSourceMethods, Wrap,
+};
 use crate::dom::bindings::error::{Error, Fallible};
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::refcounted::Trusted;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::event::Event;
@@ -28,10 +30,10 @@ use js::conversions::ToJSValConvertible;
 use js::jsapi::JSAutoCompartment;
 use js::jsval::UndefinedValue;
 use mime::{self, Mime};
-use net_traits::{CoreResourceMsg, FetchChannels, FetchMetadata};
-use net_traits::{FetchResponseMsg, FetchResponseListener, NetworkError};
 use net_traits::request::{CacheMode, CorsSettings, CredentialsMode};
 use net_traits::request::{RequestInit, RequestMode};
+use net_traits::{CoreResourceMsg, FetchChannels, FetchMetadata};
+use net_traits::{FetchResponseListener, FetchResponseMsg, NetworkError};
 use servo_atoms::Atom;
 use servo_url::ServoUrl;
 use std::cell::Cell;
diff --git a/components/script/dom/eventtarget.rs b/components/script/dom/eventtarget.rs
index 81e8a350490..3c1a1dd3381 100644
--- a/components/script/dom/eventtarget.rs
+++ b/components/script/dom/eventtarget.rs
@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use crate::dom::beforeunloadevent::BeforeUnloadEvent;
-use crate::dom::bindings::callback::{CallbackContainer, ExceptionHandling, CallbackFunction};
+use crate::dom::bindings::callback::{CallbackContainer, CallbackFunction, ExceptionHandling};
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::BeforeUnloadEventBinding::BeforeUnloadEventMethods;
 use crate::dom::bindings::codegen::Bindings::ErrorEventBinding::ErrorEventMethods;
@@ -20,9 +20,9 @@ use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
 use crate::dom::bindings::codegen::UnionTypes::AddEventListenerOptionsOrBoolean;
 use crate::dom::bindings::codegen::UnionTypes::EventListenerOptionsOrBoolean;
 use crate::dom::bindings::codegen::UnionTypes::EventOrString;
-use crate::dom::bindings::error::{Error, Fallible, report_pending_exception};
+use crate::dom::bindings::error::{report_pending_exception, Error, Fallible};
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::element::Element;
@@ -34,14 +34,14 @@ use crate::dom::virtualmethods::VirtualMethods;
 use crate::dom::window::Window;
 use dom_struct::dom_struct;
 use fnv::FnvHasher;
-use js::jsapi::{JS_GetFunctionObject, JSAutoCompartment, JSFunction};
-use js::rust::{AutoObjectVectorWrapper, CompileOptionsWrapper};
+use js::jsapi::{JSAutoCompartment, JSFunction, JS_GetFunctionObject};
 use js::rust::wrappers::CompileFunction;
+use js::rust::{AutoObjectVectorWrapper, CompileOptionsWrapper};
 use libc::{c_char, size_t};
 use servo_atoms::Atom;
 use servo_url::ServoUrl;
-use std::collections::HashMap;
 use std::collections::hash_map::Entry::{Occupied, Vacant};
+use std::collections::HashMap;
 use std::default::Default;
 use std::ffi::CString;
 use std::hash::BuildHasherDefault;
diff --git a/components/script/dom/file.rs b/components/script/dom/file.rs
index 3046e122417..978460855c1 100644
--- a/components/script/dom/file.rs
+++ b/components/script/dom/file.rs
@@ -10,7 +10,7 @@ use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::reflector::reflect_dom_object;
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
-use crate::dom::blob::{Blob, BlobImpl, blob_parts_to_bytes};
+use crate::dom::blob::{blob_parts_to_bytes, Blob, BlobImpl};
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::window::Window;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/filelist.rs b/components/script/dom/filelist.rs
index 0049f8fca4a..241305c71a4 100644
--- a/components/script/dom/filelist.rs
+++ b/components/script/dom/filelist.rs
@@ -4,7 +4,7 @@
 
 use crate::dom::bindings::codegen::Bindings::FileListBinding;
 use crate::dom::bindings::codegen::Bindings::FileListBinding::FileListMethods;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::file::File;
 use crate::dom::window::Window;
diff --git a/components/script/dom/filereader.rs b/components/script/dom/filereader.rs
index 000616d5ced..c10f7688b40 100644
--- a/components/script/dom/filereader.rs
+++ b/components/script/dom/filereader.rs
@@ -5,12 +5,14 @@
 use base64;
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::BlobBinding::BlobMethods;
-use crate::dom::bindings::codegen::Bindings::FileReaderBinding::{self, FileReaderConstants, FileReaderMethods};
+use crate::dom::bindings::codegen::Bindings::FileReaderBinding::{
+    self, FileReaderConstants, FileReaderMethods,
+};
 use crate::dom::bindings::codegen::UnionTypes::StringOrObject;
 use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::refcounted::Trusted;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::{DomRoot, MutNullableDom};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::bindings::trace::RootedTraceableBox;
@@ -21,8 +23,8 @@ use crate::dom::eventtarget::EventTarget;
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::progressevent::ProgressEvent;
 use crate::task::TaskCanceller;
-use crate::task_source::{TaskSource, TaskSourceName};
 use crate::task_source::file_reading::{FileReadingTask, FileReadingTaskSource};
+use crate::task_source::{TaskSource, TaskSourceName};
 use dom_struct::dom_struct;
 use encoding_rs::{Encoding, UTF_8};
 use js::jsapi::Heap;
diff --git a/components/script/dom/filereadersync.rs b/components/script/dom/filereadersync.rs
index 3b9608863ce..9738cfed73b 100644
--- a/components/script/dom/filereadersync.rs
+++ b/components/script/dom/filereadersync.rs
@@ -3,9 +3,11 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use crate::dom::bindings::codegen::Bindings::BlobBinding::BlobMethods;
-use crate::dom::bindings::codegen::Bindings::FileReaderSyncBinding::{FileReaderSyncBinding, FileReaderSyncMethods};
+use crate::dom::bindings::codegen::Bindings::FileReaderSyncBinding::{
+    FileReaderSyncBinding, FileReaderSyncMethods,
+};
 use crate::dom::bindings::error::{Error, Fallible};
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::blob::Blob;
diff --git a/components/script/dom/formdata.rs b/components/script/dom/formdata.rs
index ca3f83cbb91..3109b9c67d9 100644
--- a/components/script/dom/formdata.rs
+++ b/components/script/dom/formdata.rs
@@ -9,17 +9,17 @@ use crate::dom::bindings::codegen::UnionTypes::FileOrUSVString;
 use crate::dom::bindings::error::Fallible;
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::iterable::Iterable;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::{DOMString, USVString};
 use crate::dom::blob::{Blob, BlobImpl};
 use crate::dom::file::File;
 use crate::dom::globalscope::GlobalScope;
-use crate::dom::htmlformelement::{HTMLFormElement, FormDatumValue, FormDatum};
+use crate::dom::htmlformelement::{FormDatum, FormDatumValue, HTMLFormElement};
 use dom_struct::dom_struct;
 use html5ever::LocalName;
-use std::collections::BTreeMap;
 use std::collections::btree_map::Entry::{Occupied, Vacant};
+use std::collections::BTreeMap;
 use std::iter;
 
 #[dom_struct]
diff --git a/components/script/dom/gainnode.rs b/components/script/dom/gainnode.rs
index c3e39e5bcfe..40754b7baf5 100644
--- a/components/script/dom/gainnode.rs
+++ b/components/script/dom/gainnode.rs
@@ -5,9 +5,13 @@
 use crate::dom::audionode::AudioNode;
 use crate::dom::audioparam::AudioParam;
 use crate::dom::baseaudiocontext::BaseAudioContext;
-use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{ChannelCountMode, ChannelInterpretation};
+use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{
+    ChannelCountMode, ChannelInterpretation,
+};
 use crate::dom::bindings::codegen::Bindings::AudioParamBinding::AutomationRate;
-use crate::dom::bindings::codegen::Bindings::GainNodeBinding::{self, GainNodeMethods, GainOptions};
+use crate::dom::bindings::codegen::Bindings::GainNodeBinding::{
+    self, GainNodeMethods, GainOptions,
+};
 use crate::dom::bindings::error::Fallible;
 use crate::dom::bindings::reflector::reflect_dom_object;
 use crate::dom::bindings::root::{Dom, DomRoot};
diff --git a/components/script/dom/gamepad.rs b/components/script/dom/gamepad.rs
index 24177b70bfc..6994e16c4c4 100644
--- a/components/script/dom/gamepad.rs
+++ b/components/script/dom/gamepad.rs
@@ -6,7 +6,7 @@ use crate::dom::bindings::codegen::Bindings::GamepadBinding;
 use crate::dom::bindings::codegen::Bindings::GamepadBinding::GamepadMethods;
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::num::Finite;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::event::Event;
@@ -17,7 +17,7 @@ use crate::dom::globalscope::GlobalScope;
 use crate::dom::vrpose::VRPose;
 use dom_struct::dom_struct;
 use js::jsapi::{Heap, JSContext, JSObject};
-use js::typedarray::{Float64Array, CreateWith};
+use js::typedarray::{CreateWith, Float64Array};
 use std::cell::Cell;
 use std::ptr;
 use std::ptr::NonNull;
diff --git a/components/script/dom/gamepadbutton.rs b/components/script/dom/gamepadbutton.rs
index 8162aefc845..57d50994c75 100644
--- a/components/script/dom/gamepadbutton.rs
+++ b/components/script/dom/gamepadbutton.rs
@@ -5,7 +5,7 @@
 use crate::dom::bindings::codegen::Bindings::GamepadButtonBinding;
 use crate::dom::bindings::codegen::Bindings::GamepadButtonBinding::GamepadButtonMethods;
 use crate::dom::bindings::num::Finite;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::globalscope::GlobalScope;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/gamepadbuttonlist.rs b/components/script/dom/gamepadbuttonlist.rs
index 87608789fed..175b7c7aeef 100644
--- a/components/script/dom/gamepadbuttonlist.rs
+++ b/components/script/dom/gamepadbuttonlist.rs
@@ -4,7 +4,7 @@
 
 use crate::dom::bindings::codegen::Bindings::GamepadButtonListBinding;
 use crate::dom::bindings::codegen::Bindings::GamepadButtonListBinding::GamepadButtonListMethods;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot, RootedReference};
 use crate::dom::gamepadbutton::GamepadButton;
 use crate::dom::globalscope::GlobalScope;
diff --git a/components/script/dom/gamepadevent.rs b/components/script/dom/gamepadevent.rs
index e25b1de6731..c96c3e021bd 100644
--- a/components/script/dom/gamepadevent.rs
+++ b/components/script/dom/gamepadevent.rs
@@ -7,7 +7,7 @@ use crate::dom::bindings::codegen::Bindings::GamepadEventBinding;
 use crate::dom::bindings::codegen::Bindings::GamepadEventBinding::GamepadEventMethods;
 use crate::dom::bindings::error::Fallible;
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::event::Event;
diff --git a/components/script/dom/gamepadlist.rs b/components/script/dom/gamepadlist.rs
index f207f8316a0..b158cc3891c 100644
--- a/components/script/dom/gamepadlist.rs
+++ b/components/script/dom/gamepadlist.rs
@@ -5,7 +5,7 @@
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::GamepadListBinding;
 use crate::dom::bindings::codegen::Bindings::GamepadListBinding::GamepadListMethods;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::gamepad::Gamepad;
 use crate::dom::globalscope::GlobalScope;
diff --git a/components/script/dom/globalscope.rs b/components/script/dom/globalscope.rs
index 4c40d11a044..96d4131f581 100644
--- a/components/script/dom/globalscope.rs
+++ b/components/script/dom/globalscope.rs
@@ -7,11 +7,11 @@ use crate::dom::bindings::codegen::Bindings::EventSourceBinding::EventSourceBind
 use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
 use crate::dom::bindings::codegen::Bindings::WorkerGlobalScopeBinding::WorkerGlobalScopeMethods;
 use crate::dom::bindings::conversions::root_from_object;
-use crate::dom::bindings::error::{ErrorInfo, report_pending_exception};
+use crate::dom::bindings::error::{report_pending_exception, ErrorInfo};
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::reflector::DomObject;
 use crate::dom::bindings::root::{DomRoot, MutNullableDom};
-use crate::dom::bindings::settings_stack::{AutoEntryScript, entry_global, incumbent_global};
+use crate::dom::bindings::settings_stack::{entry_global, incumbent_global, AutoEntryScript};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::bindings::weakref::DOMTracker;
 use crate::dom::crypto::Crypto;
@@ -28,43 +28,43 @@ use crate::microtask::{Microtask, MicrotaskQueue};
 use crate::script_runtime::{CommonScriptMsg, ScriptChan, ScriptPort};
 use crate::script_thread::{MainThreadScriptChan, ScriptThread};
 use crate::task::TaskCanceller;
-use crate::task_source::TaskSourceName;
 use crate::task_source::dom_manipulation::DOMManipulationTaskSource;
 use crate::task_source::file_reading::FileReadingTaskSource;
 use crate::task_source::networking::NetworkingTaskSource;
 use crate::task_source::performance_timeline::PerformanceTimelineTaskSource;
 use crate::task_source::remote_event::RemoteEventTaskSource;
 use crate::task_source::websocket::WebsocketTaskSource;
+use crate::task_source::TaskSourceName;
 use crate::timers::{IsInterval, OneshotTimerCallback, OneshotTimerHandle};
 use crate::timers::{OneshotTimers, TimerCallback};
 use devtools_traits::{ScriptToDevtoolsControlMsg, WorkerId};
 use dom_struct::dom_struct;
 use ipc_channel::ipc::IpcSender;
-use js::{JSCLASS_IS_DOMJSCLASS, JSCLASS_IS_GLOBAL};
 use js::glue::{IsWrapper, UnwrapObject};
+use js::jsapi::JSObject;
 use js::jsapi::{CurrentGlobalOrNull, GetGlobalForObjectCrossCompartment};
-use js::jsapi::{Heap, HandleObject};
+use js::jsapi::{HandleObject, Heap};
 use js::jsapi::{JSAutoCompartment, JSContext};
-use js::jsapi::JSObject;
 use js::panic::maybe_resume_unwind;
-use js::rust::{CompileOptionsWrapper, Runtime, get_object_class};
-use js::rust::{HandleValue, MutableHandleValue};
 use js::rust::wrappers::Evaluate2;
+use js::rust::{get_object_class, CompileOptionsWrapper, Runtime};
+use js::rust::{HandleValue, MutableHandleValue};
+use js::{JSCLASS_IS_DOMJSCLASS, JSCLASS_IS_GLOBAL};
 use libc;
 use msg::constellation_msg::PipelineId;
-use net_traits::{CoreResourceThread, ResourceThreads, IpcSend};
+use net_traits::{CoreResourceThread, IpcSend, ResourceThreads};
 use profile_traits::{mem as profile_mem, time as profile_time};
 use script_traits::{MsDuration, ScriptToConstellationChan, TimerEvent};
 use script_traits::{TimerEventId, TimerSchedulerMsg, TimerSource};
 use servo_url::{MutableOrigin, ServoUrl};
 use std::cell::Cell;
-use std::collections::HashMap;
 use std::collections::hash_map::Entry;
+use std::collections::HashMap;
 use std::ffi::CString;
 use std::rc::Rc;
-use std::sync::Arc;
 use std::sync::atomic::{AtomicBool, Ordering};
-use time::{Timespec, get_time};
+use std::sync::Arc;
+use time::{get_time, Timespec};
 
 #[derive(JSTraceable)]
 pub struct AutoCloseWorker(Arc<AtomicBool>);
diff --git a/components/script/dom/headers.rs b/components/script/dom/headers.rs
index cebc78ba0e0..c7c71fb7dde 100644
--- a/components/script/dom/headers.rs
+++ b/components/script/dom/headers.rs
@@ -3,12 +3,14 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use crate::dom::bindings::cell::DomRefCell;
-use crate::dom::bindings::codegen::Bindings::HeadersBinding::{HeadersInit, HeadersMethods, HeadersWrap};
+use crate::dom::bindings::codegen::Bindings::HeadersBinding::{
+    HeadersInit, HeadersMethods, HeadersWrap,
+};
 use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
 use crate::dom::bindings::iterable::Iterable;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
-use crate::dom::bindings::str::{ByteString, is_token};
+use crate::dom::bindings::str::{is_token, ByteString};
 use crate::dom::globalscope::GlobalScope;
 use dom_struct::dom_struct;
 use http::header::{self, HeaderMap as HyperHeaders, HeaderName, HeaderValue};
diff --git a/components/script/dom/history.rs b/components/script/dom/history.rs
index b23b4a2d330..da0e1c325b8 100644
--- a/components/script/dom/history.rs
+++ b/components/script/dom/history.rs
@@ -8,7 +8,7 @@ use crate::dom::bindings::codegen::Bindings::LocationBinding::LocationBinding::L
 use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
 use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::{DOMString, USVString};
 use crate::dom::bindings::structuredclone::StructuredCloneData;
diff --git a/components/script/dom/htmlanchorelement.rs b/components/script/dom/htmlanchorelement.rs
index b6c45b33cfd..73f16a8340a 100644
--- a/components/script/dom/htmlanchorelement.rs
+++ b/components/script/dom/htmlanchorelement.rs
@@ -21,7 +21,7 @@ use crate::dom::eventtarget::EventTarget;
 use crate::dom::htmlelement::HTMLElement;
 use crate::dom::htmlimageelement::HTMLImageElement;
 use crate::dom::mouseevent::MouseEvent;
-use crate::dom::node::{Node, document_from_node};
+use crate::dom::node::{document_from_node, Node};
 use crate::dom::urlhelper::UrlHelper;
 use crate::dom::virtualmethods::VirtualMethods;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/htmlareaelement.rs b/components/script/dom/htmlareaelement.rs
index 686740ef818..1a167bd3b94 100644
--- a/components/script/dom/htmlareaelement.rs
+++ b/components/script/dom/htmlareaelement.rs
@@ -16,7 +16,7 @@ use crate::dom::event::Event;
 use crate::dom::eventtarget::EventTarget;
 use crate::dom::htmlanchorelement::follow_hyperlink;
 use crate::dom::htmlelement::HTMLElement;
-use crate::dom::node::{Node, document_from_node};
+use crate::dom::node::{document_from_node, Node};
 use crate::dom::virtualmethods::VirtualMethods;
 use dom_struct::dom_struct;
 use euclid::Point2D;
diff --git a/components/script/dom/htmlbaseelement.rs b/components/script/dom/htmlbaseelement.rs
index 141d74f3223..33ba9886b48 100644
--- a/components/script/dom/htmlbaseelement.rs
+++ b/components/script/dom/htmlbaseelement.rs
@@ -11,7 +11,7 @@ use crate::dom::bindings::str::DOMString;
 use crate::dom::document::Document;
 use crate::dom::element::{AttributeMutation, Element};
 use crate::dom::htmlelement::HTMLElement;
-use crate::dom::node::{Node, UnbindContext, document_from_node};
+use crate::dom::node::{document_from_node, Node, UnbindContext};
 use crate::dom::virtualmethods::VirtualMethods;
 use dom_struct::dom_struct;
 use html5ever::{LocalName, Prefix};
diff --git a/components/script/dom/htmlbodyelement.rs b/components/script/dom/htmlbodyelement.rs
index a72906e1337..b3bf5e6a76e 100644
--- a/components/script/dom/htmlbodyelement.rs
+++ b/components/script/dom/htmlbodyelement.rs
@@ -3,16 +3,18 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use crate::dom::attr::Attr;
-use crate::dom::bindings::codegen::Bindings::HTMLBodyElementBinding::{self, HTMLBodyElementMethods};
+use crate::dom::bindings::codegen::Bindings::HTMLBodyElementBinding::{
+    self, HTMLBodyElementMethods,
+};
 use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::root::{LayoutDom, DomRoot};
+use crate::dom::bindings::root::{DomRoot, LayoutDom};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::document::Document;
 use crate::dom::element::{AttributeMutation, Element, RawLayoutElementHelpers};
 use crate::dom::eventtarget::EventTarget;
 use crate::dom::htmlelement::HTMLElement;
-use crate::dom::node::{Node, document_from_node, window_from_node};
+use crate::dom::node::{document_from_node, window_from_node, Node};
 use crate::dom::virtualmethods::VirtualMethods;
 use cssparser::RGBA;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/htmlbuttonelement.rs b/components/script/dom/htmlbuttonelement.rs
index e75da65e618..b954c4a7d34 100755
--- a/components/script/dom/htmlbuttonelement.rs
+++ b/components/script/dom/htmlbuttonelement.rs
@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::dom::activation::{Activatable, ActivationSource, synthetic_click_activation};
+use crate::dom::activation::{synthetic_click_activation, Activatable, ActivationSource};
 use crate::dom::attr::Attr;
 use crate::dom::bindings::codegen::Bindings::HTMLButtonElementBinding;
 use crate::dom::bindings::codegen::Bindings::HTMLButtonElementBinding::HTMLButtonElementMethods;
@@ -15,13 +15,13 @@ use crate::dom::event::Event;
 use crate::dom::eventtarget::EventTarget;
 use crate::dom::htmlelement::HTMLElement;
 use crate::dom::htmlfieldsetelement::HTMLFieldSetElement;
+use crate::dom::htmlformelement::HTMLFormElement;
 use crate::dom::htmlformelement::{FormControl, FormDatum, FormDatumValue};
 use crate::dom::htmlformelement::{FormSubmitter, ResetFrom, SubmittedFrom};
-use crate::dom::htmlformelement::HTMLFormElement;
-use crate::dom::node::{Node, UnbindContext, document_from_node, window_from_node};
+use crate::dom::node::{document_from_node, window_from_node, Node, UnbindContext};
 use crate::dom::nodelist::NodeList;
 use crate::dom::validation::Validatable;
-use crate::dom::validitystate::{ValidityState, ValidationFlags};
+use crate::dom::validitystate::{ValidationFlags, ValidityState};
 use crate::dom::virtualmethods::VirtualMethods;
 use dom_struct::dom_struct;
 use html5ever::{LocalName, Prefix};
diff --git a/components/script/dom/htmlcanvaselement.rs b/components/script/dom/htmlcanvaselement.rs
index db9b5e8eda5..0661f5717f0 100644
--- a/components/script/dom/htmlcanvaselement.rs
+++ b/components/script/dom/htmlcanvaselement.rs
@@ -3,12 +3,14 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use base64;
-use canvas_traits::canvas::{CanvasMsg, CanvasId, FromScriptMsg};
+use canvas_traits::canvas::{CanvasId, CanvasMsg, FromScriptMsg};
 use canvas_traits::webgl::WebGLVersion;
 use crate::dom::attr::Attr;
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::HTMLCanvasElementBinding;
-use crate::dom::bindings::codegen::Bindings::HTMLCanvasElementBinding::{HTMLCanvasElementMethods, RenderingContext};
+use crate::dom::bindings::codegen::Bindings::HTMLCanvasElementBinding::{
+    HTMLCanvasElementMethods, RenderingContext,
+};
 use crate::dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLContextAttributes;
 use crate::dom::bindings::conversions::ConversionResult;
 use crate::dom::bindings::error::{Error, Fallible};
@@ -16,20 +18,24 @@ use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::reflector::DomObject;
 use crate::dom::bindings::root::{Dom, DomRoot, LayoutDom};
 use crate::dom::bindings::str::{DOMString, USVString};
-use crate::dom::canvasrenderingcontext2d::{CanvasRenderingContext2D, LayoutCanvasRenderingContext2DHelpers};
+use crate::dom::canvasrenderingcontext2d::{
+    CanvasRenderingContext2D, LayoutCanvasRenderingContext2DHelpers,
+};
 use crate::dom::document::Document;
 use crate::dom::element::{AttributeMutation, Element, RawLayoutElementHelpers};
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::htmlelement::HTMLElement;
-use crate::dom::node::{Node, window_from_node};
+use crate::dom::node::{window_from_node, Node};
 use crate::dom::virtualmethods::VirtualMethods;
 use crate::dom::webgl2renderingcontext::WebGL2RenderingContext;
-use crate::dom::webglrenderingcontext::{LayoutCanvasWebGLRenderingContextHelpers, WebGLRenderingContext};
+use crate::dom::webglrenderingcontext::{
+    LayoutCanvasWebGLRenderingContextHelpers, WebGLRenderingContext,
+};
 use dom_struct::dom_struct;
 use euclid::{Rect, Size2D};
 use html5ever::{LocalName, Prefix};
-use image::ColorType;
 use image::png::PNGEncoder;
+use image::ColorType;
 use js::error::throw_type_error;
 use js::jsapi::JSContext;
 use js::rust::HandleValue;
@@ -440,8 +446,8 @@ impl<'a> From<&'a WebGLContextAttributes> for GLContextAttributes {
 
 pub mod utils {
     use crate::dom::window::Window;
-    use net_traits::image_cache::{ImageResponse, UsePlaceholder, ImageOrMetadataAvailable};
     use net_traits::image_cache::CanRequestImages;
+    use net_traits::image_cache::{ImageOrMetadataAvailable, ImageResponse, UsePlaceholder};
     use servo_url::ServoUrl;
 
     pub fn request_image_from_cache(window: &Window, url: ServoUrl) -> ImageResponse {
diff --git a/components/script/dom/htmlcollection.rs b/components/script/dom/htmlcollection.rs
index cb2853e1307..99d3c4775b8 100644
--- a/components/script/dom/htmlcollection.rs
+++ b/components/script/dom/htmlcollection.rs
@@ -5,13 +5,13 @@
 use crate::dom::bindings::codegen::Bindings::HTMLCollectionBinding;
 use crate::dom::bindings::codegen::Bindings::HTMLCollectionBinding::HTMLCollectionMethods;
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot, MutNullableDom};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::bindings::trace::JSTraceable;
 use crate::dom::bindings::xmlname::namespace_from_domstring;
 use crate::dom::element::Element;
-use crate::dom::node::{Node, document_from_node};
+use crate::dom::node::{document_from_node, Node};
 use crate::dom::window::Window;
 use dom_struct::dom_struct;
 use html5ever::{LocalName, QualName};
diff --git a/components/script/dom/htmldatalistelement.rs b/components/script/dom/htmldatalistelement.rs
index de7230a441d..9c58b94695a 100644
--- a/components/script/dom/htmldatalistelement.rs
+++ b/components/script/dom/htmldatalistelement.rs
@@ -11,7 +11,7 @@ use crate::dom::element::Element;
 use crate::dom::htmlcollection::{CollectionFilter, HTMLCollection};
 use crate::dom::htmlelement::HTMLElement;
 use crate::dom::htmloptionelement::HTMLOptionElement;
-use crate::dom::node::{Node, window_from_node};
+use crate::dom::node::{window_from_node, Node};
 use dom_struct::dom_struct;
 use html5ever::{LocalName, Prefix};
 
diff --git a/components/script/dom/htmldetailselement.rs b/components/script/dom/htmldetailselement.rs
index b3c8fadbc43..80d4c1caa98 100644
--- a/components/script/dom/htmldetailselement.rs
+++ b/components/script/dom/htmldetailselement.rs
@@ -12,7 +12,7 @@ use crate::dom::document::Document;
 use crate::dom::element::AttributeMutation;
 use crate::dom::eventtarget::EventTarget;
 use crate::dom::htmlelement::HTMLElement;
-use crate::dom::node::{Node, window_from_node};
+use crate::dom::node::{window_from_node, Node};
 use crate::dom::virtualmethods::VirtualMethods;
 use crate::task_source::TaskSource;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/htmldialogelement.rs b/components/script/dom/htmldialogelement.rs
index e54ef512ac6..36edbefa9cb 100644
--- a/components/script/dom/htmldialogelement.rs
+++ b/components/script/dom/htmldialogelement.rs
@@ -12,7 +12,7 @@ use crate::dom::document::Document;
 use crate::dom::element::Element;
 use crate::dom::eventtarget::EventTarget;
 use crate::dom::htmlelement::HTMLElement;
-use crate::dom::node::{Node, window_from_node};
+use crate::dom::node::{window_from_node, Node};
 use dom_struct::dom_struct;
 use html5ever::{LocalName, Prefix};
 
diff --git a/components/script/dom/htmlelement.rs b/components/script/dom/htmlelement.rs
index 73fb7feab79..c3702a0357a 100644
--- a/components/script/dom/htmlelement.rs
+++ b/components/script/dom/htmlelement.rs
@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::dom::activation::{ActivationSource, synthetic_click_activation};
+use crate::dom::activation::{synthetic_click_activation, ActivationSource};
 use crate::dom::attr::Attr;
 use crate::dom::bindings::codegen::Bindings::ElementBinding::ElementMethods;
 use crate::dom::bindings::codegen::Bindings::EventHandlerBinding::EventHandlerNonNull;
@@ -11,8 +11,8 @@ use crate::dom::bindings::codegen::Bindings::HTMLElementBinding::HTMLElementMeth
 use crate::dom::bindings::codegen::Bindings::NodeBinding::NodeBinding::NodeMethods;
 use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
 use crate::dom::bindings::error::{Error, ErrorResult};
-use crate::dom::bindings::inheritance::{ElementTypeId, HTMLElementTypeId, NodeTypeId};
 use crate::dom::bindings::inheritance::Castable;
+use crate::dom::bindings::inheritance::{ElementTypeId, HTMLElementTypeId, NodeTypeId};
 use crate::dom::bindings::root::{Dom, DomRoot, MutNullableDom, RootedReference};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::cssstyledeclaration::{CSSModificationAccess, CSSStyleDeclaration, CSSStyleOwner};
@@ -27,8 +27,8 @@ use crate::dom::htmlframesetelement::HTMLFrameSetElement;
 use crate::dom::htmlhtmlelement::HTMLHtmlElement;
 use crate::dom::htmlinputelement::{HTMLInputElement, InputType};
 use crate::dom::htmllabelelement::HTMLLabelElement;
-use crate::dom::node::{Node, NodeFlags};
 use crate::dom::node::{document_from_node, window_from_node};
+use crate::dom::node::{Node, NodeFlags};
 use crate::dom::nodelist::NodeList;
 use crate::dom::text::Text;
 use crate::dom::virtualmethods::VirtualMethods;
diff --git a/components/script/dom/htmlfieldsetelement.rs b/components/script/dom/htmlfieldsetelement.rs
index 2f5ffa9a042..2026e7bd5e0 100644
--- a/components/script/dom/htmlfieldsetelement.rs
+++ b/components/script/dom/htmlfieldsetelement.rs
@@ -13,7 +13,7 @@ use crate::dom::htmlcollection::{CollectionFilter, HTMLCollection};
 use crate::dom::htmlelement::HTMLElement;
 use crate::dom::htmlformelement::{FormControl, HTMLFormElement};
 use crate::dom::htmllegendelement::HTMLLegendElement;
-use crate::dom::node::{Node, window_from_node};
+use crate::dom::node::{window_from_node, Node};
 use crate::dom::validitystate::ValidityState;
 use crate::dom::virtualmethods::VirtualMethods;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/htmlfontelement.rs b/components/script/dom/htmlfontelement.rs
index 371e55ea65a..0794e4ca432 100644
--- a/components/script/dom/htmlfontelement.rs
+++ b/components/script/dom/htmlfontelement.rs
@@ -18,7 +18,7 @@ use dom_struct::dom_struct;
 use html5ever::{LocalName, Prefix};
 use servo_atoms::Atom;
 use style::attr::AttrValue;
-use style::str::{HTML_SPACE_CHARACTERS, read_numbers};
+use style::str::{read_numbers, HTML_SPACE_CHARACTERS};
 
 #[dom_struct]
 pub struct HTMLFontElement {
diff --git a/components/script/dom/htmlformcontrolscollection.rs b/components/script/dom/htmlformcontrolscollection.rs
index bf23f85bdce..57261fe26aa 100644
--- a/components/script/dom/htmlformcontrolscollection.rs
+++ b/components/script/dom/htmlformcontrolscollection.rs
@@ -6,7 +6,7 @@ use crate::dom::bindings::codegen::Bindings::HTMLCollectionBinding::HTMLCollecti
 use crate::dom::bindings::codegen::Bindings::HTMLFormControlsCollectionBinding;
 use crate::dom::bindings::codegen::Bindings::HTMLFormControlsCollectionBinding::HTMLFormControlsCollectionMethods;
 use crate::dom::bindings::codegen::UnionTypes::RadioNodeListOrElement;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::element::Element;
diff --git a/components/script/dom/htmlformelement.rs b/components/script/dom/htmlformelement.rs
index d5331cfc356..ba322aa20e9 100755
--- a/components/script/dom/htmlformelement.rs
+++ b/components/script/dom/htmlformelement.rs
@@ -37,8 +37,8 @@ use crate::dom::htmlobjectelement::HTMLObjectElement;
 use crate::dom::htmloutputelement::HTMLOutputElement;
 use crate::dom::htmlselectelement::HTMLSelectElement;
 use crate::dom::htmltextareaelement::HTMLTextAreaElement;
-use crate::dom::node::{Node, NodeFlags, UnbindContext, VecPreOrderInsertionHelper};
 use crate::dom::node::{document_from_node, window_from_node};
+use crate::dom::node::{Node, NodeFlags, UnbindContext, VecPreOrderInsertionHelper};
 use crate::dom::validitystate::ValidationFlags;
 use crate::dom::virtualmethods::VirtualMethods;
 use crate::dom::window::Window;
@@ -58,8 +58,8 @@ use std::borrow::ToOwned;
 use std::cell::Cell;
 use style::attr::AttrValue;
 use style::str::split_html_space_chars;
-use url::UrlQuery;
 use url::form_urlencoded::Serializer;
+use url::UrlQuery;
 
 #[derive(Clone, Copy, JSTraceable, MallocSizeOf, PartialEq)]
 pub struct GenerationId(u32);
diff --git a/components/script/dom/htmlframesetelement.rs b/components/script/dom/htmlframesetelement.rs
index 686b908f8a5..4bf5d1002f0 100644
--- a/components/script/dom/htmlframesetelement.rs
+++ b/components/script/dom/htmlframesetelement.rs
@@ -8,7 +8,7 @@ use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::document::Document;
 use crate::dom::htmlelement::HTMLElement;
-use crate::dom::node::{Node, document_from_node};
+use crate::dom::node::{document_from_node, Node};
 use dom_struct::dom_struct;
 use html5ever::{LocalName, Prefix};
 
diff --git a/components/script/dom/htmlheadelement.rs b/components/script/dom/htmlheadelement.rs
index 2b5d9e5a69f..c3aa6812062 100644
--- a/components/script/dom/htmlheadelement.rs
+++ b/components/script/dom/htmlheadelement.rs
@@ -6,11 +6,11 @@ use crate::dom::bindings::codegen::Bindings::DocumentBinding::DocumentMethods;
 use crate::dom::bindings::codegen::Bindings::HTMLHeadElementBinding;
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::root::{DomRoot, RootedReference};
-use crate::dom::document::{Document, determine_policy_for_token};
+use crate::dom::document::{determine_policy_for_token, Document};
 use crate::dom::element::Element;
 use crate::dom::htmlelement::HTMLElement;
 use crate::dom::htmlmetaelement::HTMLMetaElement;
-use crate::dom::node::{Node, document_from_node};
+use crate::dom::node::{document_from_node, Node};
 use crate::dom::userscripts::load_script;
 use crate::dom::virtualmethods::VirtualMethods;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/htmliframeelement.rs b/components/script/dom/htmliframeelement.rs
index 5e835f1122c..83499448cdc 100644
--- a/components/script/dom/htmliframeelement.rs
+++ b/components/script/dom/htmliframeelement.rs
@@ -11,7 +11,7 @@ use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowBinding::Windo
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::refcounted::Trusted;
 use crate::dom::bindings::reflector::DomObject;
-use crate::dom::bindings::root::{LayoutDom, DomRoot, MutNullableDom};
+use crate::dom::bindings::root::{DomRoot, LayoutDom, MutNullableDom};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::document::Document;
 use crate::dom::domtokenlist::DOMTokenList;
@@ -19,7 +19,7 @@ use crate::dom::element::{AttributeMutation, Element, RawLayoutElementHelpers};
 use crate::dom::eventtarget::EventTarget;
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::htmlelement::HTMLElement;
-use crate::dom::node::{Node, NodeDamage, UnbindContext, document_from_node, window_from_node};
+use crate::dom::node::{document_from_node, window_from_node, Node, NodeDamage, UnbindContext};
 use crate::dom::virtualmethods::VirtualMethods;
 use crate::dom::window::ReflowReason;
 use crate::dom::windowproxy::WindowProxy;
@@ -31,9 +31,11 @@ use ipc_channel::ipc;
 use msg::constellation_msg::{BrowsingContextId, PipelineId, TopLevelBrowsingContextId};
 use profile_traits::ipc as ProfiledIpc;
 use script_layout_interface::message::ReflowGoal;
-use script_traits::{IFrameLoadInfo, IFrameLoadInfoWithData, JsEvalResult, LoadData, UpdatePipelineIdReason};
-use script_traits::{NewLayoutInfo, ScriptMsg};
 use script_traits::IFrameSandboxState::{IFrameSandboxed, IFrameUnsandboxed};
+use script_traits::{
+    IFrameLoadInfo, IFrameLoadInfoWithData, JsEvalResult, LoadData, UpdatePipelineIdReason,
+};
+use script_traits::{NewLayoutInfo, ScriptMsg};
 use servo_config::prefs::PREFS;
 use servo_url::ServoUrl;
 use std::cell::Cell;
diff --git a/components/script/dom/htmlimageelement.rs b/components/script/dom/htmlimageelement.rs
index 8234983b936..05d1d2804e1 100644
--- a/components/script/dom/htmlimageelement.rs
+++ b/components/script/dom/htmlimageelement.rs
@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use app_units::{Au, AU_PER_PX};
-use crate::document_loader::{LoadType, LoadBlocker};
+use crate::document_loader::{LoadBlocker, LoadType};
 use crate::dom::activation::Activatable;
 use crate::dom::attr::Attr;
 use crate::dom::bindings::cell::DomRefCell;
@@ -21,8 +21,8 @@ use crate::dom::bindings::reflector::DomObject;
 use crate::dom::bindings::root::{DomRoot, LayoutDom, MutNullableDom};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::document::Document;
-use crate::dom::element::{AttributeMutation, Element, RawLayoutElementHelpers};
 use crate::dom::element::{reflect_cross_origin_attribute, set_cross_origin_attribute};
+use crate::dom::element::{AttributeMutation, Element, RawLayoutElementHelpers};
 use crate::dom::event::{Event, EventBubbles, EventCancelable};
 use crate::dom::eventtarget::EventTarget;
 use crate::dom::htmlareaelement::HTMLAreaElement;
@@ -32,7 +32,7 @@ use crate::dom::htmlmapelement::HTMLMapElement;
 use crate::dom::htmlpictureelement::HTMLPictureElement;
 use crate::dom::htmlsourceelement::HTMLSourceElement;
 use crate::dom::mouseevent::MouseEvent;
-use crate::dom::node::{Node, NodeDamage, document_from_node, window_from_node, UnbindContext};
+use crate::dom::node::{document_from_node, window_from_node, Node, NodeDamage, UnbindContext};
 use crate::dom::progressevent::ProgressEvent;
 use crate::dom::values::UNSIGNED_LONG_MAX;
 use crate::dom::virtualmethods::VirtualMethods;
@@ -48,15 +48,15 @@ use html5ever::{LocalName, Prefix};
 use ipc_channel::ipc;
 use ipc_channel::router::ROUTER;
 use mime::{self, Mime};
-use net_traits::{FetchResponseListener, FetchMetadata, NetworkError, FetchResponseMsg};
 use net_traits::image::base::{Image, ImageMetadata};
+use net_traits::image_cache::UsePlaceholder;
 use net_traits::image_cache::{CanRequestImages, ImageCache, ImageOrMetadataAvailable};
 use net_traits::image_cache::{ImageResponder, ImageResponse, ImageState, PendingImageId};
-use net_traits::image_cache::UsePlaceholder;
 use net_traits::request::RequestInit;
+use net_traits::{FetchMetadata, FetchResponseListener, FetchResponseMsg, NetworkError};
 use num_traits::ToPrimitive;
-use servo_url::ServoUrl;
 use servo_url::origin::MutableOrigin;
+use servo_url::ServoUrl;
 use std::cell::{Cell, RefMut};
 use std::char;
 use std::collections::HashSet;
@@ -64,14 +64,16 @@ use std::default::Default;
 use std::i32;
 use std::mem;
 use std::sync::{Arc, Mutex};
-use style::attr::{AttrValue, LengthOrPercentageOrAuto, parse_double, parse_length, parse_unsigned_integer};
+use style::attr::{
+    parse_double, parse_length, parse_unsigned_integer, AttrValue, LengthOrPercentageOrAuto,
+};
 use style::context::QuirksMode;
 use style::media_queries::MediaList;
 use style::parser::ParserContext;
 use style::str::is_ascii_digit;
 use style::stylesheets::{CssRuleType, Origin};
-use style::values::specified::{AbsoluteLength, source_size_list::SourceSizeList};
 use style::values::specified::length::{Length, NoCalcLength};
+use style::values::specified::{source_size_list::SourceSizeList, AbsoluteLength};
 use style_traits::ParsingMode;
 
 enum ParseState {
diff --git a/components/script/dom/htmlinputelement.rs b/components/script/dom/htmlinputelement.rs
index ae575120df6..e0f50575a44 100755
--- a/components/script/dom/htmlinputelement.rs
+++ b/components/script/dom/htmlinputelement.rs
@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use caseless::compatibility_caseless_match_str;
-use crate::dom::activation::{Activatable, ActivationSource, synthetic_click_activation};
+use crate::dom::activation::{synthetic_click_activation, Activatable, ActivationSource};
 use crate::dom::attr::Attr;
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::EventBinding::EventMethods;
@@ -18,7 +18,9 @@ use crate::dom::bindings::reflector::DomObject;
 use crate::dom::bindings::root::{Dom, DomRoot, LayoutDom, MutNullableDom, RootedReference};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::document::Document;
-use crate::dom::element::{AttributeMutation, Element, LayoutElementHelpers, RawLayoutElementHelpers};
+use crate::dom::element::{
+    AttributeMutation, Element, LayoutElementHelpers, RawLayoutElementHelpers,
+};
 use crate::dom::event::{Event, EventBubbles, EventCancelable};
 use crate::dom::eventtarget::EventTarget;
 use crate::dom::file::File;
@@ -26,28 +28,32 @@ use crate::dom::filelist::FileList;
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::htmlelement::HTMLElement;
 use crate::dom::htmlfieldsetelement::HTMLFieldSetElement;
-use crate::dom::htmlformelement::{FormControl, FormDatum, FormDatumValue, FormSubmitter, HTMLFormElement};
+use crate::dom::htmlformelement::{
+    FormControl, FormDatum, FormDatumValue, FormSubmitter, HTMLFormElement,
+};
 use crate::dom::htmlformelement::{ResetFrom, SubmittedFrom};
 use crate::dom::keyboardevent::KeyboardEvent;
 use crate::dom::mouseevent::MouseEvent;
-use crate::dom::node::{Node, NodeDamage, UnbindContext};
 use crate::dom::node::{document_from_node, window_from_node};
+use crate::dom::node::{Node, NodeDamage, UnbindContext};
 use crate::dom::nodelist::NodeList;
 use crate::dom::textcontrol::{TextControlElement, TextControlSelection};
 use crate::dom::validation::Validatable;
 use crate::dom::validitystate::ValidationFlags;
 use crate::dom::virtualmethods::VirtualMethods;
-use crate::textinput::{Direction, SelectionDirection, TextInput};
-use crate::textinput::KeyReaction::{DispatchInput, Nothing, RedrawSelection, TriggerDefaultAction};
+use crate::textinput::KeyReaction::{
+    DispatchInput, Nothing, RedrawSelection, TriggerDefaultAction,
+};
 use crate::textinput::Lines::Single;
+use crate::textinput::{Direction, SelectionDirection, TextInput};
 use dom_struct::dom_struct;
 use embedder_traits::FilterPattern;
 use html5ever::{LocalName, Prefix};
 use mime_guess;
 use msg::constellation_msg::InputMethodType;
-use net_traits::{CoreResourceMsg, IpcSend};
 use net_traits::blob_url_store::get_blob_origin;
 use net_traits::filemanager_thread::FileManagerThreadMsg;
+use net_traits::{CoreResourceMsg, IpcSend};
 use profile_traits::ipc;
 use script_layout_interface::rpc::TextIndexResponse;
 use script_traits::ScriptToConstellationChan;
diff --git a/components/script/dom/htmllabelelement.rs b/components/script/dom/htmllabelelement.rs
index 7294c205937..badc60b5243 100644
--- a/components/script/dom/htmllabelelement.rs
+++ b/components/script/dom/htmllabelelement.rs
@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::dom::activation::{Activatable, ActivationSource, synthetic_click_activation};
+use crate::dom::activation::{synthetic_click_activation, Activatable, ActivationSource};
 use crate::dom::attr::Attr;
 use crate::dom::bindings::codegen::Bindings::HTMLLabelElementBinding;
 use crate::dom::bindings::codegen::Bindings::HTMLLabelElementBinding::HTMLLabelElementMethods;
diff --git a/components/script/dom/htmllegendelement.rs b/components/script/dom/htmllegendelement.rs
index f69f2ff6362..562c4675a58 100644
--- a/components/script/dom/htmllegendelement.rs
+++ b/components/script/dom/htmllegendelement.rs
@@ -11,7 +11,7 @@ use crate::dom::document::Document;
 use crate::dom::element::Element;
 use crate::dom::htmlelement::HTMLElement;
 use crate::dom::htmlfieldsetelement::HTMLFieldSetElement;
-use crate::dom::htmlformelement::{HTMLFormElement, FormControl};
+use crate::dom::htmlformelement::{FormControl, HTMLFormElement};
 use crate::dom::node::{Node, UnbindContext};
 use crate::dom::virtualmethods::VirtualMethods;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/htmllinkelement.rs b/components/script/dom/htmllinkelement.rs
index dd32b053885..74d8e301cff 100644
--- a/components/script/dom/htmllinkelement.rs
+++ b/components/script/dom/htmllinkelement.rs
@@ -13,13 +13,15 @@ use crate::dom::bindings::str::DOMString;
 use crate::dom::cssstylesheet::CSSStyleSheet;
 use crate::dom::document::Document;
 use crate::dom::domtokenlist::DOMTokenList;
+use crate::dom::element::{
+    cors_setting_for_element, reflect_cross_origin_attribute, set_cross_origin_attribute,
+};
 use crate::dom::element::{AttributeMutation, Element, ElementCreator};
-use crate::dom::element::{cors_setting_for_element, reflect_cross_origin_attribute, set_cross_origin_attribute};
 use crate::dom::htmlelement::HTMLElement;
-use crate::dom::node::{Node, UnbindContext, document_from_node, window_from_node};
+use crate::dom::node::{document_from_node, window_from_node, Node, UnbindContext};
 use crate::dom::stylesheet::StyleSheet as DOMStyleSheet;
 use crate::dom::virtualmethods::VirtualMethods;
-use crate::stylesheet_loader::{StylesheetLoader, StylesheetContextSource, StylesheetOwner};
+use crate::stylesheet_loader::{StylesheetContextSource, StylesheetLoader, StylesheetOwner};
 use cssparser::{Parser as CssParser, ParserInput};
 use dom_struct::dom_struct;
 use embedder_traits::EmbedderMsg;
diff --git a/components/script/dom/htmlmediaelement.rs b/components/script/dom/htmlmediaelement.rs
index eb8de36e8ab..da3722996d3 100644
--- a/components/script/dom/htmlmediaelement.rs
+++ b/components/script/dom/htmlmediaelement.rs
@@ -23,7 +23,7 @@ use crate::dom::bindings::root::{DomRoot, LayoutDom, MutNullableDom};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::blob::Blob;
 use crate::dom::document::Document;
-use crate::dom::element::{Element, AttributeMutation};
+use crate::dom::element::{AttributeMutation, Element};
 use crate::dom::eventtarget::EventTarget;
 use crate::dom::htmlelement::HTMLElement;
 use crate::dom::htmlsourceelement::HTMLSourceElement;
@@ -45,14 +45,14 @@ use http::header::{self, HeaderMap, HeaderValue};
 use ipc_channel::ipc;
 use ipc_channel::router::ROUTER;
 use mime::{self, Mime};
-use net_traits::{CoreResourceMsg, FetchChannels, FetchResponseListener, FetchMetadata, Metadata};
-use net_traits::NetworkError;
 use net_traits::request::{CredentialsMode, Destination, RequestInit};
+use net_traits::NetworkError;
+use net_traits::{CoreResourceMsg, FetchChannels, FetchMetadata, FetchResponseListener, Metadata};
 use script_layout_interface::HTMLMediaData;
+use servo_media::player::frame::{Frame, FrameRenderer};
+use servo_media::player::{PlaybackState, Player, PlayerEvent, StreamType};
 use servo_media::Error as ServoMediaError;
 use servo_media::ServoMedia;
-use servo_media::player::{PlaybackState, Player, PlayerEvent, StreamType};
-use servo_media::player::frame::{Frame, FrameRenderer};
 use servo_url::ServoUrl;
 use std::cell::Cell;
 use std::collections::VecDeque;
@@ -60,7 +60,7 @@ use std::f64;
 use std::mem;
 use std::rc::Rc;
 use std::sync::{Arc, Mutex};
-use time::{self, Timespec, Duration};
+use time::{self, Duration, Timespec};
 use webrender_api::{ImageData, ImageDescriptor, ImageFormat, ImageKey, RenderApi};
 use webrender_api::{RenderApiSender, Transaction};
 
diff --git a/components/script/dom/htmlmetaelement.rs b/components/script/dom/htmlmetaelement.rs
index c73ff578c4c..7e975c440c9 100644
--- a/components/script/dom/htmlmetaelement.rs
+++ b/components/script/dom/htmlmetaelement.rs
@@ -15,7 +15,7 @@ use crate::dom::document::Document;
 use crate::dom::element::{AttributeMutation, Element};
 use crate::dom::htmlelement::HTMLElement;
 use crate::dom::htmlheadelement::HTMLHeadElement;
-use crate::dom::node::{Node, UnbindContext, document_from_node, window_from_node};
+use crate::dom::node::{document_from_node, window_from_node, Node, UnbindContext};
 use crate::dom::virtualmethods::VirtualMethods;
 use dom_struct::dom_struct;
 use html5ever::{LocalName, Prefix};
@@ -26,7 +26,7 @@ use std::sync::atomic::AtomicBool;
 use style::attr::AttrValue;
 use style::media_queries::MediaList;
 use style::str::HTML_SPACE_CHARACTERS;
-use style::stylesheets::{Stylesheet, StylesheetContents, CssRule, CssRules, Origin, ViewportRule};
+use style::stylesheets::{CssRule, CssRules, Origin, Stylesheet, StylesheetContents, ViewportRule};
 
 #[dom_struct]
 pub struct HTMLMetaElement {
diff --git a/components/script/dom/htmlmeterelement.rs b/components/script/dom/htmlmeterelement.rs
index 002bb435f38..5709d569b65 100644
--- a/components/script/dom/htmlmeterelement.rs
+++ b/components/script/dom/htmlmeterelement.rs
@@ -2,7 +2,9 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::dom::bindings::codegen::Bindings::HTMLMeterElementBinding::{self, HTMLMeterElementMethods};
+use crate::dom::bindings::codegen::Bindings::HTMLMeterElementBinding::{
+    self, HTMLMeterElementMethods,
+};
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::document::Document;
diff --git a/components/script/dom/htmlobjectelement.rs b/components/script/dom/htmlobjectelement.rs
index 7fd39a7d258..896c5eb90d1 100755
--- a/components/script/dom/htmlobjectelement.rs
+++ b/components/script/dom/htmlobjectelement.rs
@@ -13,9 +13,9 @@ use crate::dom::document::Document;
 use crate::dom::element::{AttributeMutation, Element};
 use crate::dom::htmlelement::HTMLElement;
 use crate::dom::htmlformelement::{FormControl, HTMLFormElement};
-use crate::dom::node::{Node, window_from_node};
+use crate::dom::node::{window_from_node, Node};
 use crate::dom::validation::Validatable;
-use crate::dom::validitystate::{ValidityState, ValidationFlags};
+use crate::dom::validitystate::{ValidationFlags, ValidityState};
 use crate::dom::virtualmethods::VirtualMethods;
 use dom_struct::dom_struct;
 use html5ever::{LocalName, Prefix};
diff --git a/components/script/dom/htmloptionscollection.rs b/components/script/dom/htmloptionscollection.rs
index 46cb34f248f..9ad4e7363d0 100644
--- a/components/script/dom/htmloptionscollection.rs
+++ b/components/script/dom/htmloptionscollection.rs
@@ -8,7 +8,9 @@ use crate::dom::bindings::codegen::Bindings::HTMLOptionsCollectionBinding;
 use crate::dom::bindings::codegen::Bindings::HTMLOptionsCollectionBinding::HTMLOptionsCollectionMethods;
 use crate::dom::bindings::codegen::Bindings::HTMLSelectElementBinding::HTMLSelectElementMethods;
 use crate::dom::bindings::codegen::Bindings::NodeBinding::NodeBinding::NodeMethods;
-use crate::dom::bindings::codegen::UnionTypes::{HTMLOptionElementOrHTMLOptGroupElement, HTMLElementOrLong};
+use crate::dom::bindings::codegen::UnionTypes::{
+    HTMLElementOrLong, HTMLOptionElementOrHTMLOptGroupElement,
+};
 use crate::dom::bindings::error::{Error, ErrorResult};
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::reflector::reflect_dom_object;
diff --git a/components/script/dom/htmloutputelement.rs b/components/script/dom/htmloutputelement.rs
index 0e9f4bad6b6..1ca4cabba25 100644
--- a/components/script/dom/htmloutputelement.rs
+++ b/components/script/dom/htmloutputelement.rs
@@ -11,7 +11,7 @@ use crate::dom::document::Document;
 use crate::dom::element::{AttributeMutation, Element};
 use crate::dom::htmlelement::HTMLElement;
 use crate::dom::htmlformelement::{FormControl, HTMLFormElement};
-use crate::dom::node::{Node, window_from_node};
+use crate::dom::node::{window_from_node, Node};
 use crate::dom::nodelist::NodeList;
 use crate::dom::validitystate::ValidityState;
 use crate::dom::virtualmethods::VirtualMethods;
diff --git a/components/script/dom/htmlprogresselement.rs b/components/script/dom/htmlprogresselement.rs
index 752589fcea7..4bbb84cf53c 100644
--- a/components/script/dom/htmlprogresselement.rs
+++ b/components/script/dom/htmlprogresselement.rs
@@ -2,7 +2,9 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::dom::bindings::codegen::Bindings::HTMLProgressElementBinding::{self, HTMLProgressElementMethods};
+use crate::dom::bindings::codegen::Bindings::HTMLProgressElementBinding::{
+    self, HTMLProgressElementMethods,
+};
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::document::Document;
diff --git a/components/script/dom/htmlscriptelement.rs b/components/script/dom/htmlscriptelement.rs
index dca27b6b7cd..1cc66221848 100644
--- a/components/script/dom/htmlscriptelement.rs
+++ b/components/script/dom/htmlscriptelement.rs
@@ -14,13 +14,15 @@ use crate::dom::bindings::reflector::DomObject;
 use crate::dom::bindings::root::{Dom, DomRoot, RootedReference};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::document::Document;
+use crate::dom::element::{
+    cors_setting_for_element, reflect_cross_origin_attribute, set_cross_origin_attribute,
+};
 use crate::dom::element::{AttributeMutation, Element, ElementCreator};
-use crate::dom::element::{cors_setting_for_element, reflect_cross_origin_attribute, set_cross_origin_attribute};
 use crate::dom::event::{Event, EventBubbles, EventCancelable, EventStatus};
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::htmlelement::HTMLElement;
-use crate::dom::node::{ChildrenMutation, CloneChildrenFlag, Node};
 use crate::dom::node::{document_from_node, window_from_node};
+use crate::dom::node::{ChildrenMutation, CloneChildrenFlag, Node};
 use crate::dom::virtualmethods::VirtualMethods;
 use crate::network_listener::{NetworkListener, PreInvoke};
 use crate::task_source::TaskSourceName;
@@ -30,8 +32,8 @@ use html5ever::{LocalName, Prefix};
 use ipc_channel::ipc;
 use ipc_channel::router::ROUTER;
 use js::jsval::UndefinedValue;
-use net_traits::{FetchMetadata, FetchResponseListener, Metadata, NetworkError};
 use net_traits::request::{CorsSettings, CredentialsMode, Destination, RequestInit, RequestMode};
+use net_traits::{FetchMetadata, FetchResponseListener, Metadata, NetworkError};
 use servo_atoms::Atom;
 use servo_config::opts;
 use servo_url::ServoUrl;
@@ -41,7 +43,7 @@ use std::io::{Read, Write};
 use std::path::PathBuf;
 use std::process::{Command, Stdio};
 use std::sync::{Arc, Mutex};
-use style::str::{HTML_SPACE_CHARACTERS, StaticStringVec};
+use style::str::{StaticStringVec, HTML_SPACE_CHARACTERS};
 use uuid::Uuid;
 
 #[dom_struct]
diff --git a/components/script/dom/htmlselectelement.rs b/components/script/dom/htmlselectelement.rs
index 31a1a150d81..aa8abc4feb2 100755
--- a/components/script/dom/htmlselectelement.rs
+++ b/components/script/dom/htmlselectelement.rs
@@ -21,14 +21,14 @@ use crate::dom::element::{AttributeMutation, Element};
 use crate::dom::htmlcollection::CollectionFilter;
 use crate::dom::htmlelement::HTMLElement;
 use crate::dom::htmlfieldsetelement::HTMLFieldSetElement;
-use crate::dom::htmlformelement::{FormDatumValue, FormControl, FormDatum, HTMLFormElement};
+use crate::dom::htmlformelement::{FormControl, FormDatum, FormDatumValue, HTMLFormElement};
 use crate::dom::htmloptgroupelement::HTMLOptGroupElement;
 use crate::dom::htmloptionelement::HTMLOptionElement;
 use crate::dom::htmloptionscollection::HTMLOptionsCollection;
-use crate::dom::node::{Node, UnbindContext, window_from_node};
+use crate::dom::node::{window_from_node, Node, UnbindContext};
 use crate::dom::nodelist::NodeList;
 use crate::dom::validation::Validatable;
-use crate::dom::validitystate::{ValidityState, ValidationFlags};
+use crate::dom::validitystate::{ValidationFlags, ValidityState};
 use crate::dom::virtualmethods::VirtualMethods;
 use dom_struct::dom_struct;
 use html5ever::{LocalName, Prefix};
diff --git a/components/script/dom/htmlsourceelement.rs b/components/script/dom/htmlsourceelement.rs
index d2c27d18142..4cdbba9f620 100644
--- a/components/script/dom/htmlsourceelement.rs
+++ b/components/script/dom/htmlsourceelement.rs
@@ -7,8 +7,8 @@ use crate::dom::bindings::codegen::Bindings::HTMLSourceElementBinding;
 use crate::dom::bindings::codegen::Bindings::HTMLSourceElementBinding::HTMLSourceElementMethods;
 use crate::dom::bindings::codegen::Bindings::NodeBinding::NodeBinding::NodeMethods;
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::root::{Dom, Root};
 use crate::dom::bindings::root::DomRoot;
+use crate::dom::bindings::root::{Dom, Root};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::document::Document;
 use crate::dom::element::AttributeMutation;
diff --git a/components/script/dom/htmlstyleelement.rs b/components/script/dom/htmlstyleelement.rs
index f9a45cc2314..ede2cb743a8 100644
--- a/components/script/dom/htmlstyleelement.rs
+++ b/components/script/dom/htmlstyleelement.rs
@@ -12,7 +12,9 @@ use crate::dom::cssstylesheet::CSSStyleSheet;
 use crate::dom::document::Document;
 use crate::dom::element::{Element, ElementCreator};
 use crate::dom::htmlelement::HTMLElement;
-use crate::dom::node::{ChildrenMutation, Node, UnbindContext, document_from_node, window_from_node};
+use crate::dom::node::{
+    document_from_node, window_from_node, ChildrenMutation, Node, UnbindContext,
+};
 use crate::dom::stylesheet::StyleSheet as DOMStyleSheet;
 use crate::dom::virtualmethods::VirtualMethods;
 use crate::stylesheet_loader::{StylesheetLoader, StylesheetOwner};
@@ -24,7 +26,7 @@ use servo_arc::Arc;
 use std::cell::Cell;
 use style::media_queries::MediaList;
 use style::parser::ParserContext as CssParserContext;
-use style::stylesheets::{CssRuleType, Stylesheet, Origin};
+use style::stylesheets::{CssRuleType, Origin, Stylesheet};
 use style_traits::ParsingMode;
 
 #[dom_struct]
diff --git a/components/script/dom/htmltableelement.rs b/components/script/dom/htmltableelement.rs
index 044938d3129..d921855ae66 100644
--- a/components/script/dom/htmltableelement.rs
+++ b/components/script/dom/htmltableelement.rs
@@ -19,13 +19,13 @@ use crate::dom::htmltablecaptionelement::HTMLTableCaptionElement;
 use crate::dom::htmltablecolelement::HTMLTableColElement;
 use crate::dom::htmltablerowelement::HTMLTableRowElement;
 use crate::dom::htmltablesectionelement::HTMLTableSectionElement;
-use crate::dom::node::{Node, document_from_node, window_from_node};
+use crate::dom::node::{document_from_node, window_from_node, Node};
 use crate::dom::virtualmethods::VirtualMethods;
 use cssparser::RGBA;
 use dom_struct::dom_struct;
 use html5ever::{LocalName, Prefix};
 use std::cell::Cell;
-use style::attr::{AttrValue, LengthOrPercentageOrAuto, parse_unsigned_integer};
+use style::attr::{parse_unsigned_integer, AttrValue, LengthOrPercentageOrAuto};
 
 #[dom_struct]
 pub struct HTMLTableElement {
diff --git a/components/script/dom/htmltablerowelement.rs b/components/script/dom/htmltablerowelement.rs
index a5d2c978c53..5255fdc0b0c 100644
--- a/components/script/dom/htmltablerowelement.rs
+++ b/components/script/dom/htmltablerowelement.rs
@@ -3,7 +3,9 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use crate::dom::bindings::codegen::Bindings::HTMLTableElementBinding::HTMLTableElementMethods;
-use crate::dom::bindings::codegen::Bindings::HTMLTableRowElementBinding::{self, HTMLTableRowElementMethods};
+use crate::dom::bindings::codegen::Bindings::HTMLTableRowElementBinding::{
+    self, HTMLTableRowElementMethods,
+};
 use crate::dom::bindings::codegen::Bindings::HTMLTableSectionElementBinding::HTMLTableSectionElementMethods;
 use crate::dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
 use crate::dom::bindings::error::{ErrorResult, Fallible};
@@ -17,7 +19,7 @@ use crate::dom::htmlelement::HTMLElement;
 use crate::dom::htmltablecellelement::HTMLTableCellElement;
 use crate::dom::htmltableelement::HTMLTableElement;
 use crate::dom::htmltablesectionelement::HTMLTableSectionElement;
-use crate::dom::node::{Node, window_from_node};
+use crate::dom::node::{window_from_node, Node};
 use crate::dom::virtualmethods::VirtualMethods;
 use cssparser::RGBA;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/htmltablesectionelement.rs b/components/script/dom/htmltablesectionelement.rs
index c45c2450064..f1422589c27 100644
--- a/components/script/dom/htmltablesectionelement.rs
+++ b/components/script/dom/htmltablesectionelement.rs
@@ -2,7 +2,9 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::dom::bindings::codegen::Bindings::HTMLTableSectionElementBinding::{self, HTMLTableSectionElementMethods};
+use crate::dom::bindings::codegen::Bindings::HTMLTableSectionElementBinding::{
+    self, HTMLTableSectionElementMethods,
+};
 use crate::dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
 use crate::dom::bindings::error::{ErrorResult, Fallible};
 use crate::dom::bindings::inheritance::Castable;
@@ -13,7 +15,7 @@ use crate::dom::element::{Element, RawLayoutElementHelpers};
 use crate::dom::htmlcollection::{CollectionFilter, HTMLCollection};
 use crate::dom::htmlelement::HTMLElement;
 use crate::dom::htmltablerowelement::HTMLTableRowElement;
-use crate::dom::node::{Node, window_from_node};
+use crate::dom::node::{window_from_node, Node};
 use crate::dom::virtualmethods::VirtualMethods;
 use cssparser::RGBA;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/htmltemplateelement.rs b/components/script/dom/htmltemplateelement.rs
index f9d8783d975..a080373af2c 100644
--- a/components/script/dom/htmltemplateelement.rs
+++ b/components/script/dom/htmltemplateelement.rs
@@ -11,7 +11,7 @@ use crate::dom::bindings::root::{DomRoot, MutNullableDom};
 use crate::dom::document::Document;
 use crate::dom::documentfragment::DocumentFragment;
 use crate::dom::htmlelement::HTMLElement;
-use crate::dom::node::{CloneChildrenFlag, Node, document_from_node};
+use crate::dom::node::{document_from_node, CloneChildrenFlag, Node};
 use crate::dom::virtualmethods::VirtualMethods;
 use dom_struct::dom_struct;
 use html5ever::{LocalName, Prefix};
diff --git a/components/script/dom/htmltextareaelement.rs b/components/script/dom/htmltextareaelement.rs
index e919d10a1bd..05023ab683b 100755
--- a/components/script/dom/htmltextareaelement.rs
+++ b/components/script/dom/htmltextareaelement.rs
@@ -14,16 +14,16 @@ use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::root::{DomRoot, LayoutDom, MutNullableDom};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::document::Document;
-use crate::dom::element::{AttributeMutation, Element};
 use crate::dom::element::RawLayoutElementHelpers;
+use crate::dom::element::{AttributeMutation, Element};
 use crate::dom::event::{Event, EventBubbles, EventCancelable};
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::htmlelement::HTMLElement;
 use crate::dom::htmlfieldsetelement::HTMLFieldSetElement;
 use crate::dom::htmlformelement::{FormControl, HTMLFormElement};
 use crate::dom::keyboardevent::KeyboardEvent;
-use crate::dom::node::{CloneChildrenFlag, ChildrenMutation, Node, NodeDamage, UnbindContext};
 use crate::dom::node::{document_from_node, window_from_node};
+use crate::dom::node::{ChildrenMutation, CloneChildrenFlag, Node, NodeDamage, UnbindContext};
 use crate::dom::nodelist::NodeList;
 use crate::dom::textcontrol::{TextControlElement, TextControlSelection};
 use crate::dom::validation::Validatable;
diff --git a/components/script/dom/imagedata.rs b/components/script/dom/imagedata.rs
index 82f914a3b86..5aa14ca47af 100644
--- a/components/script/dom/imagedata.rs
+++ b/components/script/dom/imagedata.rs
@@ -4,15 +4,15 @@
 
 use crate::dom::bindings::codegen::Bindings::ImageDataBinding;
 use crate::dom::bindings::codegen::Bindings::ImageDataBinding::ImageDataMethods;
-use crate::dom::bindings::error::{Fallible, Error};
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::error::{Error, Fallible};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::globalscope::GlobalScope;
 use dom_struct::dom_struct;
 use euclid::{Rect, Size2D};
 use js::jsapi::{Heap, JSContext, JSObject};
 use js::rust::Runtime;
-use js::typedarray::{Uint8ClampedArray, CreateWith};
+use js::typedarray::{CreateWith, Uint8ClampedArray};
 use pixels;
 use std::borrow::Cow;
 use std::default::Default;
diff --git a/components/script/dom/location.rs b/components/script/dom/location.rs
index 284b25ee467..3a63482dd32 100644
--- a/components/script/dom/location.rs
+++ b/components/script/dom/location.rs
@@ -6,7 +6,7 @@ use crate::dom::bindings::codegen::Bindings::LocationBinding;
 use crate::dom::bindings::codegen::Bindings::LocationBinding::LocationMethods;
 use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowBinding::WindowMethods;
 use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::{DOMString, USVString};
 use crate::dom::globalscope::GlobalScope;
diff --git a/components/script/dom/mediaerror.rs b/components/script/dom/mediaerror.rs
index 6da1cceb101..cd379e59678 100644
--- a/components/script/dom/mediaerror.rs
+++ b/components/script/dom/mediaerror.rs
@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use crate::dom::bindings::codegen::Bindings::MediaErrorBinding::{self, MediaErrorMethods};
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::window::Window;
diff --git a/components/script/dom/medialist.rs b/components/script/dom/medialist.rs
index 5293947354b..29b2bbfab75 100644
--- a/components/script/dom/medialist.rs
+++ b/components/script/dom/medialist.rs
@@ -5,7 +5,7 @@
 use crate::dom::bindings::codegen::Bindings::MediaListBinding;
 use crate::dom::bindings::codegen::Bindings::MediaListBinding::MediaListMethods;
 use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowBinding::WindowMethods;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::cssstylesheet::CSSStyleSheet;
@@ -16,7 +16,7 @@ use servo_arc::Arc;
 use style::media_queries::MediaList as StyleMediaList;
 use style::media_queries::MediaQuery;
 use style::parser::ParserContext;
-use style::shared_lock::{SharedRwLock, Locked};
+use style::shared_lock::{Locked, SharedRwLock};
 use style::stylesheets::CssRuleType;
 use style_traits::{ParsingMode, ToCss};
 
diff --git a/components/script/dom/mimetypearray.rs b/components/script/dom/mimetypearray.rs
index dd1e78ff9ab..97f6fcccdd0 100644
--- a/components/script/dom/mimetypearray.rs
+++ b/components/script/dom/mimetypearray.rs
@@ -4,7 +4,7 @@
 
 use crate::dom::bindings::codegen::Bindings::MimeTypeArrayBinding;
 use crate::dom::bindings::codegen::Bindings::MimeTypeArrayBinding::MimeTypeArrayMethods;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::globalscope::GlobalScope;
diff --git a/components/script/dom/mutationobserver.rs b/components/script/dom/mutationobserver.rs
index 362c05b8197..89664282764 100644
--- a/components/script/dom/mutationobserver.rs
+++ b/components/script/dom/mutationobserver.rs
@@ -9,7 +9,7 @@ use crate::dom::bindings::codegen::Bindings::MutationObserverBinding::MutationCa
 use crate::dom::bindings::codegen::Bindings::MutationObserverBinding::MutationObserverBinding::MutationObserverMethods;
 use crate::dom::bindings::codegen::Bindings::MutationObserverBinding::MutationObserverInit;
 use crate::dom::bindings::error::{Error, Fallible};
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object, DomObject};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::mutationrecord::MutationRecord;
@@ -18,7 +18,7 @@ use crate::dom::window::Window;
 use crate::microtask::Microtask;
 use crate::script_thread::ScriptThread;
 use dom_struct::dom_struct;
-use html5ever::{Namespace, LocalName};
+use html5ever::{LocalName, Namespace};
 use std::rc::Rc;
 
 #[dom_struct]
diff --git a/components/script/dom/mutationrecord.rs b/components/script/dom/mutationrecord.rs
index 7cf337f5207..cf47e8e0d36 100644
--- a/components/script/dom/mutationrecord.rs
+++ b/components/script/dom/mutationrecord.rs
@@ -4,10 +4,10 @@
 
 use crate::dom::bindings::codegen::Bindings::MutationRecordBinding::MutationRecordBinding;
 use crate::dom::bindings::codegen::Bindings::MutationRecordBinding::MutationRecordBinding::MutationRecordMethods;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot, MutNullableDom};
 use crate::dom::bindings::str::DOMString;
-use crate::dom::node::{Node, window_from_node};
+use crate::dom::node::{window_from_node, Node};
 use crate::dom::nodelist::NodeList;
 use dom_struct::dom_struct;
 use html5ever::{LocalName, Namespace};
diff --git a/components/script/dom/namednodemap.rs b/components/script/dom/namednodemap.rs
index 0303234f783..2cd2737f9b8 100644
--- a/components/script/dom/namednodemap.rs
+++ b/components/script/dom/namednodemap.rs
@@ -7,7 +7,7 @@ use crate::dom::bindings::codegen::Bindings::ElementBinding::ElementMethods;
 use crate::dom::bindings::codegen::Bindings::NamedNodeMapBinding;
 use crate::dom::bindings::codegen::Bindings::NamedNodeMapBinding::NamedNodeMapMethods;
 use crate::dom::bindings::error::{Error, Fallible};
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::bindings::xmlname::namespace_from_domstring;
diff --git a/components/script/dom/navigator.rs b/components/script/dom/navigator.rs
index 44b0fcf632d..7e7d51ebabd 100644
--- a/components/script/dom/navigator.rs
+++ b/components/script/dom/navigator.rs
@@ -5,7 +5,7 @@
 use crate::dom::bindings::codegen::Bindings::NavigatorBinding;
 use crate::dom::bindings::codegen::Bindings::NavigatorBinding::NavigatorMethods;
 use crate::dom::bindings::codegen::Bindings::VRBinding::VRBinding::VRMethods;
-use crate::dom::bindings::reflector::{Reflector, DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{DomRoot, MutNullableDom};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::bluetooth::Bluetooth;
diff --git a/components/script/dom/node.rs b/components/script/dom/node.rs
index 4b2f3211ae0..2c637f78a98 100644
--- a/components/script/dom/node.rs
+++ b/components/script/dom/node.rs
@@ -21,13 +21,13 @@ use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
 use crate::dom::bindings::inheritance::{Castable, CharacterDataTypeId, ElementTypeId};
 use crate::dom::bindings::inheritance::{EventTargetTypeId, HTMLElementTypeId, NodeTypeId};
 use crate::dom::bindings::inheritance::{SVGElementTypeId, SVGGraphicsElementTypeId};
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::{Dom, DomRoot, LayoutDom, MutNullableDom, RootedReference};
 use crate::dom::bindings::str::{DOMString, USVString};
 use crate::dom::bindings::xmlname::namespace_from_domstring;
 use crate::dom::characterdata::{CharacterData, LayoutCharacterDataHelpers};
 use crate::dom::cssstylesheet::CSSStyleSheet;
-use crate::dom::customelementregistry::{CallbackReaction, try_upgrade_element};
+use crate::dom::customelementregistry::{try_upgrade_element, CallbackReaction};
 use crate::dom::document::{Document, DocumentSource, HasBrowsingContext, IsHTMLDocument};
 use crate::dom::documentfragment::DocumentFragment;
 use crate::dom::documenttype::DocumentType;
@@ -50,24 +50,24 @@ use crate::dom::mutationobserver::{Mutation, MutationObserver, RegisteredObserve
 use crate::dom::nodelist::NodeList;
 use crate::dom::processinginstruction::ProcessingInstruction;
 use crate::dom::range::WeakRangeVec;
-use crate::dom::svgsvgelement::{SVGSVGElement, LayoutSVGSVGElementHelpers};
+use crate::dom::svgsvgelement::{LayoutSVGSVGElementHelpers, SVGSVGElement};
 use crate::dom::text::Text;
-use crate::dom::virtualmethods::{VirtualMethods, vtable_for};
+use crate::dom::virtualmethods::{vtable_for, VirtualMethods};
 use crate::dom::window::Window;
 use crate::script_thread::ScriptThread;
 use devtools_traits::NodeInfo;
 use dom_struct::dom_struct;
-use euclid::{Point2D, Vector2D, Rect, Size2D};
-use html5ever::{Prefix, Namespace, QualName};
+use euclid::{Point2D, Rect, Size2D, Vector2D};
+use html5ever::{Namespace, Prefix, QualName};
 use js::jsapi::{JSContext, JSObject, JSRuntime};
 use libc::{self, c_void, uintptr_t};
 use malloc_size_of::{MallocSizeOf, MallocSizeOfOps};
 use msg::constellation_msg::{BrowsingContextId, PipelineId};
 use net_traits::image::base::{Image, ImageMetadata};
 use ref_slice::ref_slice;
+use script_layout_interface::message::Msg;
 use script_layout_interface::{HTMLCanvasData, HTMLMediaData, LayoutElementType, LayoutNodeType};
 use script_layout_interface::{OpaqueStyleAndLayoutData, SVGSVGData, TrustedNodeAddress};
-use script_layout_interface::message::Msg;
 use script_traits::DocumentActivity;
 use script_traits::UntrustedNodeAddress;
 use selectors::matching::{matches_selector_list, MatchingContext, MatchingMode};
@@ -76,7 +76,7 @@ use servo_arc::Arc;
 use servo_url::ServoUrl;
 use smallvec::SmallVec;
 use std::borrow::ToOwned;
-use std::cell::{Cell, UnsafeCell, RefMut};
+use std::cell::{Cell, RefMut, UnsafeCell};
 use std::cmp;
 use std::default::Default;
 use std::iter;
diff --git a/components/script/dom/nodeiterator.rs b/components/script/dom/nodeiterator.rs
index 965bbf1a83f..83d96cc7294 100644
--- a/components/script/dom/nodeiterator.rs
+++ b/components/script/dom/nodeiterator.rs
@@ -9,7 +9,7 @@ use crate::dom::bindings::codegen::Bindings::NodeFilterBinding::NodeFilterConsta
 use crate::dom::bindings::codegen::Bindings::NodeIteratorBinding;
 use crate::dom::bindings::codegen::Bindings::NodeIteratorBinding::NodeIteratorMethods;
 use crate::dom::bindings::error::{Error, Fallible};
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot, MutDom};
 use crate::dom::document::Document;
 use crate::dom::node::Node;
diff --git a/components/script/dom/nodelist.rs b/components/script/dom/nodelist.rs
index ddf78a350ed..5f557cd713d 100644
--- a/components/script/dom/nodelist.rs
+++ b/components/script/dom/nodelist.rs
@@ -5,7 +5,7 @@
 use crate::dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
 use crate::dom::bindings::codegen::Bindings::NodeListBinding;
 use crate::dom::bindings::codegen::Bindings::NodeListBinding::NodeListMethods;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot, MutNullableDom, RootedReference};
 use crate::dom::node::{ChildrenMutation, Node};
 use crate::dom::window::Window;
diff --git a/components/script/dom/offlineaudiocontext.rs b/components/script/dom/offlineaudiocontext.rs
index 8d2d0d6663b..f98f3b44750 100644
--- a/components/script/dom/offlineaudiocontext.rs
+++ b/components/script/dom/offlineaudiocontext.rs
@@ -14,7 +14,7 @@ use crate::dom::bindings::error::{Error, Fallible};
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::num::Finite;
 use crate::dom::bindings::refcounted::Trusted;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::event::{Event, EventBubbles, EventCancelable};
 use crate::dom::offlineaudiocompletionevent::OfflineAudioCompletionEvent;
@@ -25,8 +25,8 @@ use dom_struct::dom_struct;
 use servo_media::audio::context::OfflineAudioContextOptions as ServoMediaOfflineAudioContextOptions;
 use std::cell::Cell;
 use std::rc::Rc;
-use std::sync::{Arc, Mutex};
 use std::sync::mpsc;
+use std::sync::{Arc, Mutex};
 use std::thread::Builder;
 
 #[dom_struct]
diff --git a/components/script/dom/oscillatornode.rs b/components/script/dom/oscillatornode.rs
index 0263be2d161..2a3e429d181 100644
--- a/components/script/dom/oscillatornode.rs
+++ b/components/script/dom/oscillatornode.rs
@@ -5,10 +5,14 @@
 use crate::dom::audioparam::AudioParam;
 use crate::dom::audioscheduledsourcenode::AudioScheduledSourceNode;
 use crate::dom::baseaudiocontext::BaseAudioContext;
-use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{ChannelCountMode, ChannelInterpretation};
+use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{
+    ChannelCountMode, ChannelInterpretation,
+};
 use crate::dom::bindings::codegen::Bindings::AudioParamBinding::AutomationRate;
-use crate::dom::bindings::codegen::Bindings::OscillatorNodeBinding::{self, OscillatorOptions, OscillatorType};
 use crate::dom::bindings::codegen::Bindings::OscillatorNodeBinding::OscillatorNodeMethods;
+use crate::dom::bindings::codegen::Bindings::OscillatorNodeBinding::{
+    self, OscillatorOptions, OscillatorType,
+};
 use crate::dom::bindings::error::Fallible;
 use crate::dom::bindings::reflector::reflect_dom_object;
 use crate::dom::bindings::root::{Dom, DomRoot};
diff --git a/components/script/dom/paintsize.rs b/components/script/dom/paintsize.rs
index cbf46a9ddbe..9ec09e84fa9 100644
--- a/components/script/dom/paintsize.rs
+++ b/components/script/dom/paintsize.rs
@@ -5,8 +5,8 @@
 use crate::dom::bindings::codegen::Bindings::PaintSizeBinding;
 use crate::dom::bindings::codegen::Bindings::PaintSizeBinding::PaintSizeMethods;
 use crate::dom::bindings::num::Finite;
-use crate::dom::bindings::reflector::Reflector;
 use crate::dom::bindings::reflector::reflect_dom_object;
+use crate::dom::bindings::reflector::Reflector;
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::paintworkletglobalscope::PaintWorkletGlobalScope;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/paintworkletglobalscope.rs b/components/script/dom/paintworkletglobalscope.rs
index b6d693a1f22..91ceedaa576 100644
--- a/components/script/dom/paintworkletglobalscope.rs
+++ b/components/script/dom/paintworkletglobalscope.rs
@@ -38,24 +38,24 @@ use js::jsapi::JS_NewArrayObject;
 use js::jsval::JSVal;
 use js::jsval::ObjectValue;
 use js::jsval::UndefinedValue;
-use js::rust::HandleValue;
-use js::rust::Runtime;
 use js::rust::wrappers::Call;
 use js::rust::wrappers::Construct1;
+use js::rust::HandleValue;
+use js::rust::Runtime;
 use msg::constellation_msg::PipelineId;
 use net_traits::image::base::PixelFormat;
 use net_traits::image_cache::ImageCache;
 use profile_traits::ipc;
-use script_traits::{DrawAPaintImageResult, PaintWorkletError};
 use script_traits::Painter;
+use script_traits::{DrawAPaintImageResult, PaintWorkletError};
 use servo_atoms::Atom;
-use servo_channel::{channel, Sender};
 use servo_channel::base_channel;
+use servo_channel::{channel, Sender};
 use servo_config::prefs::PREFS;
 use servo_url::ServoUrl;
 use std::cell::Cell;
-use std::collections::HashMap;
 use std::collections::hash_map::Entry;
+use std::collections::HashMap;
 use std::ptr::null_mut;
 use std::rc::Rc;
 use std::sync::Arc;
diff --git a/components/script/dom/pannernode.rs b/components/script/dom/pannernode.rs
index b63ab59957f..a483934d8da 100644
--- a/components/script/dom/pannernode.rs
+++ b/components/script/dom/pannernode.rs
@@ -5,10 +5,18 @@
 use crate::dom::audionode::AudioNode;
 use crate::dom::audioparam::AudioParam;
 use crate::dom::baseaudiocontext::BaseAudioContext;
-use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{ChannelCountMode, ChannelInterpretation};
-use crate::dom::bindings::codegen::Bindings::AudioParamBinding::{AudioParamMethods, AutomationRate};
-use crate::dom::bindings::codegen::Bindings::PannerNodeBinding::{self, PannerNodeMethods, PannerOptions};
-use crate::dom::bindings::codegen::Bindings::PannerNodeBinding::{DistanceModelType, PanningModelType};
+use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{
+    ChannelCountMode, ChannelInterpretation,
+};
+use crate::dom::bindings::codegen::Bindings::AudioParamBinding::{
+    AudioParamMethods, AutomationRate,
+};
+use crate::dom::bindings::codegen::Bindings::PannerNodeBinding::{
+    self, PannerNodeMethods, PannerOptions,
+};
+use crate::dom::bindings::codegen::Bindings::PannerNodeBinding::{
+    DistanceModelType, PanningModelType,
+};
 use crate::dom::bindings::error::{Error, Fallible};
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::num::Finite;
@@ -17,8 +25,8 @@ use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::window::Window;
 use dom_struct::dom_struct;
 use servo_media::audio::node::{AudioNodeInit, AudioNodeMessage};
-use servo_media::audio::panner_node::{DistanceModel, PannerNodeOptions, PanningModel};
 use servo_media::audio::panner_node::PannerNodeMessage;
+use servo_media::audio::panner_node::{DistanceModel, PannerNodeOptions, PanningModel};
 use servo_media::audio::param::{ParamDir, ParamType};
 use std::cell::Cell;
 use std::f32;
diff --git a/components/script/dom/performance.rs b/components/script/dom/performance.rs
index b47703f51e2..191e4b29fad 100644
--- a/components/script/dom/performance.rs
+++ b/components/script/dom/performance.rs
@@ -4,12 +4,14 @@
 
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::PerformanceBinding;
-use crate::dom::bindings::codegen::Bindings::PerformanceBinding::{DOMHighResTimeStamp, PerformanceMethods};
 use crate::dom::bindings::codegen::Bindings::PerformanceBinding::PerformanceEntryList as DOMPerformanceEntryList;
+use crate::dom::bindings::codegen::Bindings::PerformanceBinding::{
+    DOMHighResTimeStamp, PerformanceMethods,
+};
 use crate::dom::bindings::error::{Error, Fallible};
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::num::Finite;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::globalscope::GlobalScope;
diff --git a/components/script/dom/performanceentry.rs b/components/script/dom/performanceentry.rs
index f00c654dce0..6d416506eac 100644
--- a/components/script/dom/performanceentry.rs
+++ b/components/script/dom/performanceentry.rs
@@ -5,7 +5,7 @@
 use crate::dom::bindings::codegen::Bindings::PerformanceEntryBinding;
 use crate::dom::bindings::codegen::Bindings::PerformanceEntryBinding::PerformanceEntryMethods;
 use crate::dom::bindings::num::Finite;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::globalscope::GlobalScope;
diff --git a/components/script/dom/performanceobserver.rs b/components/script/dom/performanceobserver.rs
index 2cc68f79e74..4f790c82de5 100644
--- a/components/script/dom/performanceobserver.rs
+++ b/components/script/dom/performanceobserver.rs
@@ -10,7 +10,7 @@ use crate::dom::bindings::codegen::Bindings::PerformanceObserverBinding::Perform
 use crate::dom::bindings::codegen::Bindings::PerformanceObserverBinding::PerformanceObserverInit;
 use crate::dom::bindings::codegen::Bindings::PerformanceObserverBinding::PerformanceObserverMethods;
 use crate::dom::bindings::error::{Error, Fallible};
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::globalscope::GlobalScope;
diff --git a/components/script/dom/performanceobserverentrylist.rs b/components/script/dom/performanceobserverentrylist.rs
index 0fcac36848c..929e41a6e88 100644
--- a/components/script/dom/performanceobserverentrylist.rs
+++ b/components/script/dom/performanceobserverentrylist.rs
@@ -5,7 +5,7 @@
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::PerformanceObserverEntryListBinding;
 use crate::dom::bindings::codegen::Bindings::PerformanceObserverEntryListBinding::PerformanceObserverEntryListMethods;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::globalscope::GlobalScope;
diff --git a/components/script/dom/performancetiming.rs b/components/script/dom/performancetiming.rs
index 7e2dd68c2d1..930738c184f 100644
--- a/components/script/dom/performancetiming.rs
+++ b/components/script/dom/performancetiming.rs
@@ -5,7 +5,7 @@
 use crate::dom::bindings::codegen::Bindings::PerformanceTimingBinding;
 use crate::dom::bindings::codegen::Bindings::PerformanceTimingBinding::PerformanceTimingMethods;
 use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::document::Document;
 use crate::dom::window::Window;
diff --git a/components/script/dom/permissions.rs b/components/script/dom/permissions.rs
index 2c0e8e95269..615d1815384 100644
--- a/components/script/dom/permissions.rs
+++ b/components/script/dom/permissions.rs
@@ -2,12 +2,14 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::dom::bindings::codegen::Bindings::PermissionStatusBinding::{PermissionName, PermissionState};
 use crate::dom::bindings::codegen::Bindings::PermissionStatusBinding::PermissionDescriptor;
 use crate::dom::bindings::codegen::Bindings::PermissionStatusBinding::PermissionStatusMethods;
+use crate::dom::bindings::codegen::Bindings::PermissionStatusBinding::{
+    PermissionName, PermissionState,
+};
 use crate::dom::bindings::codegen::Bindings::PermissionsBinding::{self, PermissionsMethods};
 use crate::dom::bindings::error::Error;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bluetooth::Bluetooth;
 use crate::dom::bluetoothpermissionresult::BluetoothPermissionResult;
diff --git a/components/script/dom/permissionstatus.rs b/components/script/dom/permissionstatus.rs
index 1782eef5351..6efb7c50698 100644
--- a/components/script/dom/permissionstatus.rs
+++ b/components/script/dom/permissionstatus.rs
@@ -2,9 +2,11 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::dom::bindings::codegen::Bindings::PermissionStatusBinding::{self, PermissionDescriptor, PermissionName};
 use crate::dom::bindings::codegen::Bindings::PermissionStatusBinding::PermissionState;
 use crate::dom::bindings::codegen::Bindings::PermissionStatusBinding::PermissionStatusMethods;
+use crate::dom::bindings::codegen::Bindings::PermissionStatusBinding::{
+    self, PermissionDescriptor, PermissionName,
+};
 use crate::dom::bindings::reflector::reflect_dom_object;
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::eventtarget::EventTarget;
diff --git a/components/script/dom/pluginarray.rs b/components/script/dom/pluginarray.rs
index c151d5c617f..e4e26547e72 100644
--- a/components/script/dom/pluginarray.rs
+++ b/components/script/dom/pluginarray.rs
@@ -4,7 +4,7 @@
 
 use crate::dom::bindings::codegen::Bindings::PluginArrayBinding;
 use crate::dom::bindings::codegen::Bindings::PluginArrayBinding::PluginArrayMethods;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::globalscope::GlobalScope;
diff --git a/components/script/dom/promise.rs b/components/script/dom/promise.rs
index f348bd1b8c5..1e22f269d34 100644
--- a/components/script/dom/promise.rs
+++ b/components/script/dom/promise.rs
@@ -24,11 +24,13 @@ use js::jsapi::{Heap, JS_ClearPendingException};
 use js::jsapi::{JSAutoCompartment, JSContext, JSObject, JS_GetFunctionObject};
 use js::jsapi::{JS_NewFunction, NewFunctionWithReserved, PromiseState};
 use js::jsapi::{RemoveRawValueRoot, SetFunctionNativeReserved};
-use js::jsval::{JSVal, UndefinedValue, ObjectValue, Int32Value};
-use js::rust::{HandleObject, HandleValue, MutableHandleObject, Runtime};
-use js::rust::wrappers::{AddPromiseReactions, CallOriginalPromiseResolve, CallOriginalPromiseReject};
+use js::jsval::{Int32Value, JSVal, ObjectValue, UndefinedValue};
+use js::rust::wrappers::{
+    AddPromiseReactions, CallOriginalPromiseReject, CallOriginalPromiseResolve,
+};
 use js::rust::wrappers::{GetPromiseState, IsPromiseObject};
-use js::rust::wrappers::{NewPromiseObject, ResolvePromise, RejectPromise};
+use js::rust::wrappers::{NewPromiseObject, RejectPromise, ResolvePromise};
+use js::rust::{HandleObject, HandleValue, MutableHandleObject, Runtime};
 use std::ptr;
 use std::rc::Rc;
 
diff --git a/components/script/dom/promisenativehandler.rs b/components/script/dom/promisenativehandler.rs
index 3ebb8c58b79..8358de2f49e 100644
--- a/components/script/dom/promisenativehandler.rs
+++ b/components/script/dom/promisenativehandler.rs
@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use crate::dom::bindings::codegen::Bindings::PromiseNativeHandlerBinding;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::trace::JSTraceable;
 use crate::dom::globalscope::GlobalScope;
diff --git a/components/script/dom/range.rs b/components/script/dom/range.rs
index 3f8d5440917..c75989580ff 100644
--- a/components/script/dom/range.rs
+++ b/components/script/dom/range.rs
@@ -6,14 +6,14 @@ use crate::dom::bindings::codegen::Bindings::CharacterDataBinding::CharacterData
 use crate::dom::bindings::codegen::Bindings::NodeBinding::NodeConstants;
 use crate::dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
 use crate::dom::bindings::codegen::Bindings::NodeListBinding::NodeListMethods;
-use crate::dom::bindings::codegen::Bindings::RangeBinding::{self, RangeConstants};
 use crate::dom::bindings::codegen::Bindings::RangeBinding::RangeMethods;
+use crate::dom::bindings::codegen::Bindings::RangeBinding::{self, RangeConstants};
 use crate::dom::bindings::codegen::Bindings::TextBinding::TextMethods;
 use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
 use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
-use crate::dom::bindings::inheritance::{CharacterDataTypeId, NodeTypeId};
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::inheritance::{CharacterDataTypeId, NodeTypeId};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot, MutDom, RootedReference};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::bindings::trace::JSTraceable;
diff --git a/components/script/dom/request.rs b/components/script/dom/request.rs
index 139931375f7..d07e393e8da 100644
--- a/components/script/dom/request.rs
+++ b/components/script/dom/request.rs
@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::body::{BodyOperations, BodyType, consume_body};
+use crate::body::{consume_body, BodyOperations, BodyType};
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::HeadersBinding::{HeadersInit, HeadersMethods};
 use crate::dom::bindings::codegen::Bindings::RequestBinding;
@@ -16,7 +16,7 @@ use crate::dom::bindings::codegen::Bindings::RequestBinding::RequestMethods;
 use crate::dom::bindings::codegen::Bindings::RequestBinding::RequestMode;
 use crate::dom::bindings::codegen::Bindings::RequestBinding::RequestRedirect;
 use crate::dom::bindings::error::{Error, Fallible};
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{DomRoot, MutNullableDom};
 use crate::dom::bindings::str::{ByteString, DOMString, USVString};
 use crate::dom::bindings::trace::RootedTraceableBox;
@@ -25,10 +25,8 @@ use crate::dom::headers::{Guard, Headers};
 use crate::dom::promise::Promise;
 use crate::dom::xmlhttprequest::Extractable;
 use dom_struct::dom_struct;
-use http::Method as HttpMethod;
 use http::method::InvalidMethod;
-use net_traits::ReferrerPolicy as MsgReferrerPolicy;
-use net_traits::request::{Origin, Window};
+use http::Method as HttpMethod;
 use net_traits::request::CacheMode as NetTraitsRequestCache;
 use net_traits::request::CredentialsMode as NetTraitsRequestCredentials;
 use net_traits::request::Destination as NetTraitsRequestDestination;
@@ -36,6 +34,8 @@ use net_traits::request::RedirectMode as NetTraitsRequestRedirect;
 use net_traits::request::Referrer as NetTraitsRequestReferrer;
 use net_traits::request::Request as NetTraitsRequest;
 use net_traits::request::RequestMode as NetTraitsRequestMode;
+use net_traits::request::{Origin, Window};
+use net_traits::ReferrerPolicy as MsgReferrerPolicy;
 use servo_url::ServoUrl;
 use std::cell::{Cell, Ref};
 use std::rc::Rc;
diff --git a/components/script/dom/response.rs b/components/script/dom/response.rs
index 174b6782b1c..83afaf6b34b 100644
--- a/components/script/dom/response.rs
+++ b/components/script/dom/response.rs
@@ -2,26 +2,28 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::body::{BodyOperations, BodyType, consume_body, consume_body_with_promise};
+use crate::body::{consume_body, consume_body_with_promise, BodyOperations, BodyType};
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::HeadersBinding::{HeadersInit, HeadersMethods};
 use crate::dom::bindings::codegen::Bindings::ResponseBinding;
-use crate::dom::bindings::codegen::Bindings::ResponseBinding::{ResponseMethods, ResponseType as DOMResponseType};
+use crate::dom::bindings::codegen::Bindings::ResponseBinding::{
+    ResponseMethods, ResponseType as DOMResponseType,
+};
 use crate::dom::bindings::codegen::Bindings::XMLHttpRequestBinding::BodyInit;
 use crate::dom::bindings::error::{Error, Fallible};
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{DomRoot, MutNullableDom};
 use crate::dom::bindings::str::{ByteString, USVString};
 use crate::dom::globalscope::GlobalScope;
-use crate::dom::headers::{Headers, Guard};
-use crate::dom::headers::{is_vchar, is_obs_text};
+use crate::dom::headers::{is_obs_text, is_vchar};
+use crate::dom::headers::{Guard, Headers};
 use crate::dom::promise::Promise;
 use crate::dom::xmlhttprequest::Extractable;
 use dom_struct::dom_struct;
 use http::header::HeaderMap as HyperHeaders;
 use hyper::StatusCode;
 use hyper_serde::Serde;
-use net_traits::response::{ResponseBody as NetTraitsResponseBody};
+use net_traits::response::ResponseBody as NetTraitsResponseBody;
 use servo_url::ServoUrl;
 use std::cell::{Cell, Ref};
 use std::mem;
diff --git a/components/script/dom/screen.rs b/components/script/dom/screen.rs
index 0e8b853ad79..0d7cff7ffca 100644
--- a/components/script/dom/screen.rs
+++ b/components/script/dom/screen.rs
@@ -6,8 +6,8 @@ use crate::dom::bindings::codegen::Bindings::ScreenBinding;
 use crate::dom::bindings::codegen::Bindings::ScreenBinding::ScreenMethods;
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::num::Finite;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
 use crate::dom::bindings::reflector::DomObject;
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::window::Window;
diff --git a/components/script/dom/serviceworker.rs b/components/script/dom/serviceworker.rs
index 0d87aa7eac9..db5937f85d3 100644
--- a/components/script/dom/serviceworker.rs
+++ b/components/script/dom/serviceworker.rs
@@ -4,11 +4,13 @@
 
 use crate::dom::abstractworker::SimpleWorkerErrorHandler;
 use crate::dom::bindings::cell::DomRefCell;
-use crate::dom::bindings::codegen::Bindings::ServiceWorkerBinding::{ServiceWorkerMethods, ServiceWorkerState, Wrap};
-use crate::dom::bindings::error::{ErrorResult, Error};
+use crate::dom::bindings::codegen::Bindings::ServiceWorkerBinding::{
+    ServiceWorkerMethods, ServiceWorkerState, Wrap,
+};
+use crate::dom::bindings::error::{Error, ErrorResult};
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::refcounted::Trusted;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::USVString;
 use crate::dom::bindings::structuredclone::StructuredCloneData;
@@ -18,7 +20,7 @@ use crate::task::TaskOnce;
 use dom_struct::dom_struct;
 use js::jsapi::JSContext;
 use js::rust::HandleValue;
-use script_traits::{ScriptMsg, DOMMessage};
+use script_traits::{DOMMessage, ScriptMsg};
 use servo_url::ServoUrl;
 use std::cell::Cell;
 
diff --git a/components/script/dom/serviceworkercontainer.rs b/components/script/dom/serviceworkercontainer.rs
index e650002b348..dd977484895 100644
--- a/components/script/dom/serviceworkercontainer.rs
+++ b/components/script/dom/serviceworkercontainer.rs
@@ -2,10 +2,12 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::dom::bindings::codegen::Bindings::ServiceWorkerContainerBinding::{ServiceWorkerContainerMethods, Wrap};
 use crate::dom::bindings::codegen::Bindings::ServiceWorkerContainerBinding::RegistrationOptions;
+use crate::dom::bindings::codegen::Bindings::ServiceWorkerContainerBinding::{
+    ServiceWorkerContainerMethods, Wrap,
+};
 use crate::dom::bindings::error::Error;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::{Dom, DomRoot, MutNullableDom};
 use crate::dom::bindings::str::USVString;
 use crate::dom::client::Client;
diff --git a/components/script/dom/serviceworkerglobalscope.rs b/components/script/dom/serviceworkerglobalscope.rs
index 650308438a5..06f11adaad8 100644
--- a/components/script/dom/serviceworkerglobalscope.rs
+++ b/components/script/dom/serviceworkerglobalscope.rs
@@ -4,7 +4,7 @@
 
 use crate::devtools;
 use crate::dom::abstractworker::WorkerScriptMsg;
-use crate::dom::abstractworkerglobalscope::{WorkerEventLoopMethods, run_worker_event_loop};
+use crate::dom::abstractworkerglobalscope::{run_worker_event_loop, WorkerEventLoopMethods};
 use crate::dom::bindings::codegen::Bindings::ServiceWorkerGlobalScopeBinding;
 use crate::dom::bindings::codegen::Bindings::ServiceWorkerGlobalScopeBinding::ServiceWorkerGlobalScopeMethods;
 use crate::dom::bindings::inheritance::Castable;
@@ -19,17 +19,19 @@ use crate::dom::extendablemessageevent::ExtendableMessageEvent;
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::worker::TrustedWorkerAddress;
 use crate::dom::workerglobalscope::WorkerGlobalScope;
-use crate::script_runtime::{CommonScriptMsg, ScriptChan, new_rt_and_cx, Runtime};
+use crate::script_runtime::{new_rt_and_cx, CommonScriptMsg, Runtime, ScriptChan};
 use crate::task_queue::{QueuedTask, QueuedTaskConversion, TaskQueue};
 use crate::task_source::TaskSourceName;
 use devtools_traits::DevtoolScriptControlMsg;
 use dom_struct::dom_struct;
-use ipc_channel::ipc::{self, IpcSender, IpcReceiver};
+use ipc_channel::ipc::{self, IpcReceiver, IpcSender};
 use js::jsapi::{JSAutoCompartment, JSContext, JS_AddInterruptCallback};
 use js::jsval::UndefinedValue;
-use net_traits::{load_whole_resource, IpcSend, CustomResponseMediator};
 use net_traits::request::{CredentialsMode, Destination, RequestInit};
-use script_traits::{TimerEvent, WorkerGlobalScopeInit, ScopeThings, ServiceWorkerMsg, WorkerScriptLoadOrigin};
+use net_traits::{load_whole_resource, CustomResponseMediator, IpcSend};
+use script_traits::{
+    ScopeThings, ServiceWorkerMsg, TimerEvent, WorkerGlobalScopeInit, WorkerScriptLoadOrigin,
+};
 use servo_channel::{channel, route_ipc_receiver_to_new_servo_sender, Receiver, Sender};
 use servo_config::prefs::PREFS;
 use servo_rand::random;
diff --git a/components/script/dom/serviceworkerregistration.rs b/components/script/dom/serviceworkerregistration.rs
index 9d10ed574a7..3b1ca4fdab0 100644
--- a/components/script/dom/serviceworkerregistration.rs
+++ b/components/script/dom/serviceworkerregistration.rs
@@ -3,7 +3,9 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use crate::dom::bindings::codegen::Bindings::ServiceWorkerBinding::ServiceWorkerState;
-use crate::dom::bindings::codegen::Bindings::ServiceWorkerRegistrationBinding::{ServiceWorkerRegistrationMethods, Wrap};
+use crate::dom::bindings::codegen::Bindings::ServiceWorkerRegistrationBinding::{
+    ServiceWorkerRegistrationMethods, Wrap,
+};
 use crate::dom::bindings::reflector::reflect_dom_object;
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::USVString;
@@ -12,7 +14,7 @@ use crate::dom::globalscope::GlobalScope;
 use crate::dom::serviceworker::ServiceWorker;
 use crate::dom::workerglobalscope::prepare_workerscope_init;
 use dom_struct::dom_struct;
-use script_traits::{WorkerScriptLoadOrigin, ScopeThings};
+use script_traits::{ScopeThings, WorkerScriptLoadOrigin};
 use servo_url::ServoUrl;
 use std::cell::Cell;
 
diff --git a/components/script/dom/servoparser/async_html.rs b/components/script/dom/servoparser/async_html.rs
index 8b1c00aeb02..d982c75e975 100644
--- a/components/script/dom/servoparser/async_html.rs
+++ b/components/script/dom/servoparser/async_html.rs
@@ -18,21 +18,23 @@ use crate::dom::htmlscriptelement::HTMLScriptElement;
 use crate::dom::htmltemplateelement::HTMLTemplateElement;
 use crate::dom::node::Node;
 use crate::dom::processinginstruction::ProcessingInstruction;
-use crate::dom::servoparser::{ElementAttribute, create_element_for_token, ParsingAlgorithm};
+use crate::dom::servoparser::{create_element_for_token, ElementAttribute, ParsingAlgorithm};
 use crate::dom::virtualmethods::vtable_for;
-use html5ever::{Attribute as HtmlAttribute, ExpandedName, QualName};
 use html5ever::buffer_queue::BufferQueue;
-use html5ever::tendril::{SendTendril, StrTendril, Tendril};
 use html5ever::tendril::fmt::UTF8;
+use html5ever::tendril::{SendTendril, StrTendril, Tendril};
 use html5ever::tokenizer::{Tokenizer as HtmlTokenizer, TokenizerOpts, TokenizerResult};
-use html5ever::tree_builder::{ElementFlags, NodeOrText as HtmlNodeOrText, NextParserState, QuirksMode, TreeSink};
+use html5ever::tree_builder::{
+    ElementFlags, NextParserState, NodeOrText as HtmlNodeOrText, QuirksMode, TreeSink,
+};
 use html5ever::tree_builder::{TreeBuilder, TreeBuilderOpts};
+use html5ever::{Attribute as HtmlAttribute, ExpandedName, QualName};
 use servo_channel::{channel, Receiver, Sender};
 use servo_url::ServoUrl;
 use std::borrow::Cow;
 use std::cell::Cell;
-use std::collections::HashMap;
 use std::collections::vec_deque::VecDeque;
+use std::collections::HashMap;
 use std::thread;
 use style::context::QuirksMode as ServoQuirksMode;
 
diff --git a/components/script/dom/servoparser/html.rs b/components/script/dom/servoparser/html.rs
index cbdf74789a8..707a12f17eb 100644
--- a/components/script/dom/servoparser/html.rs
+++ b/components/script/dom/servoparser/html.rs
@@ -17,13 +17,13 @@ use crate::dom::htmltemplateelement::HTMLTemplateElement;
 use crate::dom::node::Node;
 use crate::dom::processinginstruction::ProcessingInstruction;
 use crate::dom::servoparser::{ParsingAlgorithm, Sink};
-use html5ever::QualName;
 use html5ever::buffer_queue::BufferQueue;
-use html5ever::serialize::{AttrRef, Serialize, Serializer};
 use html5ever::serialize::TraversalScope;
 use html5ever::serialize::TraversalScope::IncludeNode;
+use html5ever::serialize::{AttrRef, Serialize, Serializer};
 use html5ever::tokenizer::{Tokenizer as HtmlTokenizer, TokenizerOpts, TokenizerResult};
 use html5ever::tree_builder::{Tracer as HtmlTracer, TreeBuilder, TreeBuilderOpts};
+use html5ever::QualName;
 use js::jsapi::JSTracer;
 use servo_url::ServoUrl;
 use std::io;
diff --git a/components/script/dom/servoparser/mod.rs b/components/script/dom/servoparser/mod.rs
index 10326a4eb82..e1da04c724f 100644
--- a/components/script/dom/servoparser/mod.rs
+++ b/components/script/dom/servoparser/mod.rs
@@ -4,14 +4,16 @@
 
 use crate::document_loader::{DocumentLoader, LoadType};
 use crate::dom::bindings::cell::DomRefCell;
-use crate::dom::bindings::codegen::Bindings::DocumentBinding::{DocumentMethods, DocumentReadyState};
+use crate::dom::bindings::codegen::Bindings::DocumentBinding::{
+    DocumentMethods, DocumentReadyState,
+};
 use crate::dom::bindings::codegen::Bindings::HTMLImageElementBinding::HTMLImageElementMethods;
 use crate::dom::bindings::codegen::Bindings::HTMLTemplateElementBinding::HTMLTemplateElementMethods;
 use crate::dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
 use crate::dom::bindings::codegen::Bindings::ServoParserBinding;
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::refcounted::Trusted;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot, MutNullableDom, RootedReference};
 use crate::dom::bindings::settings_stack::is_execution_stack_empty;
 use crate::dom::bindings::str::DOMString;
@@ -19,7 +21,7 @@ use crate::dom::characterdata::CharacterData;
 use crate::dom::comment::Comment;
 use crate::dom::document::{Document, DocumentSource, HasBrowsingContext, IsHTMLDocument};
 use crate::dom::documenttype::DocumentType;
-use crate::dom::element::{Element, ElementCreator, CustomElementCreationMode};
+use crate::dom::element::{CustomElementCreationMode, Element, ElementCreator};
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::htmlformelement::{FormControlElementHelpers, HTMLFormElement};
 use crate::dom::htmlimageelement::HTMLImageElement;
@@ -33,16 +35,16 @@ use crate::network_listener::PreInvoke;
 use crate::script_thread::ScriptThread;
 use dom_struct::dom_struct;
 use embedder_traits::resources::{self, Resource};
-use html5ever::{Attribute, ExpandedName, LocalName, QualName};
 use html5ever::buffer_queue::BufferQueue;
-use html5ever::tendril::{StrTendril, ByteTendril, IncompleteUtf8};
-use html5ever::tree_builder::{NodeOrText, TreeSink, NextParserState, QuirksMode, ElementFlags};
+use html5ever::tendril::{ByteTendril, IncompleteUtf8, StrTendril};
+use html5ever::tree_builder::{ElementFlags, NextParserState, NodeOrText, QuirksMode, TreeSink};
+use html5ever::{Attribute, ExpandedName, LocalName, QualName};
 use hyper_serde::Serde;
 use mime::{self, Mime};
 use msg::constellation_msg::PipelineId;
 use net_traits::{FetchMetadata, FetchResponseListener, Metadata, NetworkError};
+use profile_traits::time::{profile, ProfilerCategory, TimerMetadataReflowType};
 use profile_traits::time::{TimerMetadata, TimerMetadataFrameType};
-use profile_traits::time::{TimerMetadataReflowType, ProfilerCategory, profile};
 use script_traits::DocumentActivity;
 use servo_config::prefs::PREFS;
 use servo_url::ServoUrl;
diff --git a/components/script/dom/storage.rs b/components/script/dom/storage.rs
index 16d0cf6e973..ed6ed999fa2 100644
--- a/components/script/dom/storage.rs
+++ b/components/script/dom/storage.rs
@@ -7,7 +7,7 @@ use crate::dom::bindings::codegen::Bindings::StorageBinding::StorageMethods;
 use crate::dom::bindings::error::{Error, ErrorResult};
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::refcounted::Trusted;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::event::{Event, EventBubbles, EventCancelable};
@@ -16,8 +16,8 @@ use crate::dom::window::Window;
 use crate::task_source::TaskSource;
 use dom_struct::dom_struct;
 use ipc_channel::ipc::IpcSender;
-use net_traits::IpcSend;
 use net_traits::storage_thread::{StorageThreadMsg, StorageType};
+use net_traits::IpcSend;
 use profile_traits::ipc;
 use script_traits::ScriptMsg;
 use servo_url::ServoUrl;
diff --git a/components/script/dom/stylepropertymapreadonly.rs b/components/script/dom/stylepropertymapreadonly.rs
index c6b78cc9f7a..e0af2a2b295 100644
--- a/components/script/dom/stylepropertymapreadonly.rs
+++ b/components/script/dom/stylepropertymapreadonly.rs
@@ -4,8 +4,8 @@
 
 use crate::dom::bindings::codegen::Bindings::StylePropertyMapReadOnlyBinding::StylePropertyMapReadOnlyMethods;
 use crate::dom::bindings::codegen::Bindings::StylePropertyMapReadOnlyBinding::Wrap;
-use crate::dom::bindings::reflector::Reflector;
 use crate::dom::bindings::reflector::reflect_dom_object;
+use crate::dom::bindings::reflector::Reflector;
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::cssstylevalue::CSSStyleValue;
diff --git a/components/script/dom/stylesheet.rs b/components/script/dom/stylesheet.rs
index daeb028e31a..f7486a9a532 100644
--- a/components/script/dom/stylesheet.rs
+++ b/components/script/dom/stylesheet.rs
@@ -5,7 +5,7 @@
 use crate::dom::bindings::codegen::Bindings::StyleSheetBinding;
 use crate::dom::bindings::codegen::Bindings::StyleSheetBinding::StyleSheetMethods;
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::cssstylesheet::CSSStyleSheet;
diff --git a/components/script/dom/stylesheetlist.rs b/components/script/dom/stylesheetlist.rs
index fa295c1adc4..68274dfa8ef 100644
--- a/components/script/dom/stylesheetlist.rs
+++ b/components/script/dom/stylesheetlist.rs
@@ -4,7 +4,7 @@
 
 use crate::dom::bindings::codegen::Bindings::StyleSheetListBinding;
 use crate::dom::bindings::codegen::Bindings::StyleSheetListBinding::StyleSheetListMethods;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::document::Document;
 use crate::dom::stylesheet::StyleSheet;
diff --git a/components/script/dom/testbinding.rs b/components/script/dom/testbinding.rs
index 436829b1876..e0f9af46b3b 100644
--- a/components/script/dom/testbinding.rs
+++ b/components/script/dom/testbinding.rs
@@ -8,23 +8,37 @@ use crate::dom::bindings::callback::ExceptionHandling;
 use crate::dom::bindings::codegen::Bindings::EventListenerBinding::EventListener;
 use crate::dom::bindings::codegen::Bindings::FunctionBinding::Function;
 use crate::dom::bindings::codegen::Bindings::TestBindingBinding::{self, SimpleCallback};
-use crate::dom::bindings::codegen::Bindings::TestBindingBinding::{TestBindingMethods, TestDictionary};
-use crate::dom::bindings::codegen::Bindings::TestBindingBinding::{TestDictionaryDefaults, TestEnum};
+use crate::dom::bindings::codegen::Bindings::TestBindingBinding::{
+    TestBindingMethods, TestDictionary,
+};
+use crate::dom::bindings::codegen::Bindings::TestBindingBinding::{
+    TestDictionaryDefaults, TestEnum,
+};
 use crate::dom::bindings::codegen::UnionTypes;
-use crate::dom::bindings::codegen::UnionTypes::{BlobOrBoolean, BlobOrBlobSequence, LongOrLongSequenceSequence};
+use crate::dom::bindings::codegen::UnionTypes::{
+    BlobOrBlobSequence, BlobOrBoolean, LongOrLongSequenceSequence,
+};
 use crate::dom::bindings::codegen::UnionTypes::{BlobOrString, BlobOrUnsignedLong, EventOrString};
-use crate::dom::bindings::codegen::UnionTypes::{ByteStringOrLong, ByteStringSequenceOrLongOrString};
+use crate::dom::bindings::codegen::UnionTypes::{
+    ByteStringOrLong, ByteStringSequenceOrLongOrString,
+};
 use crate::dom::bindings::codegen::UnionTypes::{ByteStringSequenceOrLong, DocumentOrTestTypedef};
-use crate::dom::bindings::codegen::UnionTypes::{EventOrUSVString, HTMLElementOrLong, LongSequenceOrTestTypedef};
-use crate::dom::bindings::codegen::UnionTypes::{HTMLElementOrUnsignedLongOrStringOrBoolean, LongSequenceOrBoolean};
+use crate::dom::bindings::codegen::UnionTypes::{
+    EventOrUSVString, HTMLElementOrLong, LongSequenceOrTestTypedef,
+};
+use crate::dom::bindings::codegen::UnionTypes::{
+    HTMLElementOrUnsignedLongOrStringOrBoolean, LongSequenceOrBoolean,
+};
 use crate::dom::bindings::codegen::UnionTypes::{StringOrBoolean, UnsignedLongOrBoolean};
 use crate::dom::bindings::codegen::UnionTypes::{StringOrLongSequence, StringOrStringSequence};
-use crate::dom::bindings::codegen::UnionTypes::{StringSequenceOrUnsignedLong, StringOrUnsignedLong};
+use crate::dom::bindings::codegen::UnionTypes::{
+    StringOrUnsignedLong, StringSequenceOrUnsignedLong,
+};
 use crate::dom::bindings::error::{Error, Fallible};
 use crate::dom::bindings::mozmap::MozMap;
 use crate::dom::bindings::num::Finite;
 use crate::dom::bindings::refcounted::TrustedPromise;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::{ByteString, DOMString, USVString};
 use crate::dom::bindings::trace::RootedTraceableBox;
@@ -32,15 +46,15 @@ use crate::dom::bindings::weakref::MutableWeakRef;
 use crate::dom::blob::{Blob, BlobImpl};
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::promise::Promise;
-use crate::dom::promisenativehandler::{PromiseNativeHandler, Callback};
+use crate::dom::promisenativehandler::{Callback, PromiseNativeHandler};
 use crate::dom::url::URL;
 use crate::timers::OneshotTimerCallback;
 use dom_struct::dom_struct;
 use js::jsapi::{Heap, JSContext, JSObject};
 use js::jsapi::{JS_NewPlainObject, JS_NewUint8ClampedArray};
 use js::jsval::{JSVal, NullValue};
-use js::rust::{HandleObject, HandleValue};
 use js::rust::CustomAutoRooterGuard;
+use js::rust::{HandleObject, HandleValue};
 use js::typedarray;
 use script_traits::MsDuration;
 use servo_config::prefs::PREFS;
diff --git a/components/script/dom/testbindingiterable.rs b/components/script/dom/testbindingiterable.rs
index 90079a8355a..232bf911943 100644
--- a/components/script/dom/testbindingiterable.rs
+++ b/components/script/dom/testbindingiterable.rs
@@ -5,9 +5,11 @@
 // check-tidy: no specs after this line
 
 use crate::dom::bindings::cell::DomRefCell;
-use crate::dom::bindings::codegen::Bindings::TestBindingIterableBinding::{self, TestBindingIterableMethods};
+use crate::dom::bindings::codegen::Bindings::TestBindingIterableBinding::{
+    self, TestBindingIterableMethods,
+};
 use crate::dom::bindings::error::Fallible;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::globalscope::GlobalScope;
diff --git a/components/script/dom/testbindingpairiterable.rs b/components/script/dom/testbindingpairiterable.rs
index 6ba99a720aa..2cdaa0c6be3 100644
--- a/components/script/dom/testbindingpairiterable.rs
+++ b/components/script/dom/testbindingpairiterable.rs
@@ -9,7 +9,7 @@ use crate::dom::bindings::codegen::Bindings::TestBindingPairIterableBinding;
 use crate::dom::bindings::codegen::Bindings::TestBindingPairIterableBinding::TestBindingPairIterableMethods;
 use crate::dom::bindings::error::Fallible;
 use crate::dom::bindings::iterable::Iterable;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::globalscope::GlobalScope;
diff --git a/components/script/dom/testrunner.rs b/components/script/dom/testrunner.rs
index b25ed715f7a..eb1c34f8750 100644
--- a/components/script/dom/testrunner.rs
+++ b/components/script/dom/testrunner.rs
@@ -6,7 +6,7 @@ use bluetooth_traits::BluetoothRequest;
 use crate::dom::bindings::codegen::Bindings::TestRunnerBinding;
 use crate::dom::bindings::codegen::Bindings::TestRunnerBinding::TestRunnerMethods;
 use crate::dom::bindings::error::{Error, ErrorResult};
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::globalscope::GlobalScope;
diff --git a/components/script/dom/testworklet.rs b/components/script/dom/testworklet.rs
index ea25de058d1..5634e491eed 100644
--- a/components/script/dom/testworklet.rs
+++ b/components/script/dom/testworklet.rs
@@ -9,8 +9,8 @@ use crate::dom::bindings::codegen::Bindings::TestWorkletBinding::Wrap;
 use crate::dom::bindings::codegen::Bindings::WorkletBinding::WorkletBinding::WorkletMethods;
 use crate::dom::bindings::codegen::Bindings::WorkletBinding::WorkletOptions;
 use crate::dom::bindings::error::Fallible;
-use crate::dom::bindings::reflector::Reflector;
 use crate::dom::bindings::reflector::reflect_dom_object;
+use crate::dom::bindings::reflector::Reflector;
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::bindings::str::USVString;
diff --git a/components/script/dom/textcontrol.rs b/components/script/dom/textcontrol.rs
index 2b862c2c6cf..3ed20a2901a 100644
--- a/components/script/dom/textcontrol.rs
+++ b/components/script/dom/textcontrol.rs
@@ -14,7 +14,7 @@ use crate::dom::bindings::error::{Error, ErrorResult};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::event::{EventBubbles, EventCancelable};
 use crate::dom::eventtarget::EventTarget;
-use crate::dom::node::{Node, NodeDamage, window_from_node};
+use crate::dom::node::{window_from_node, Node, NodeDamage};
 use crate::textinput::{SelectionDirection, SelectionState, TextInput};
 use script_traits::ScriptToConstellationChan;
 
diff --git a/components/script/dom/textdecoder.rs b/components/script/dom/textdecoder.rs
index ef66a88132f..892a7aaf0a3 100644
--- a/components/script/dom/textdecoder.rs
+++ b/components/script/dom/textdecoder.rs
@@ -3,10 +3,12 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use crate::dom::bindings::codegen::Bindings::TextDecoderBinding;
-use crate::dom::bindings::codegen::Bindings::TextDecoderBinding::{TextDecoderMethods, TextDecodeOptions};
+use crate::dom::bindings::codegen::Bindings::TextDecoderBinding::{
+    TextDecodeOptions, TextDecoderMethods,
+};
 use crate::dom::bindings::codegen::UnionTypes::ArrayBufferViewOrArrayBuffer;
 use crate::dom::bindings::error::{Error, Fallible};
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::{DOMString, USVString};
 use crate::dom::globalscope::GlobalScope;
diff --git a/components/script/dom/textencoder.rs b/components/script/dom/textencoder.rs
index f1ebd4cb6b1..d71f6024169 100644
--- a/components/script/dom/textencoder.rs
+++ b/components/script/dom/textencoder.rs
@@ -5,13 +5,13 @@
 use crate::dom::bindings::codegen::Bindings::TextEncoderBinding;
 use crate::dom::bindings::codegen::Bindings::TextEncoderBinding::TextEncoderMethods;
 use crate::dom::bindings::error::Fallible;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::{DOMString, USVString};
 use crate::dom::globalscope::GlobalScope;
 use dom_struct::dom_struct;
 use js::jsapi::{JSContext, JSObject};
-use js::typedarray::{Uint8Array, CreateWith};
+use js::typedarray::{CreateWith, Uint8Array};
 use std::ptr;
 use std::ptr::NonNull;
 
diff --git a/components/script/dom/timeranges.rs b/components/script/dom/timeranges.rs
index 4aec4cac7ef..f03a50f70ed 100644
--- a/components/script/dom/timeranges.rs
+++ b/components/script/dom/timeranges.rs
@@ -7,7 +7,7 @@ use crate::dom::bindings::codegen::Bindings::TimeRangesBinding;
 use crate::dom::bindings::codegen::Bindings::TimeRangesBinding::TimeRangesMethods;
 use crate::dom::bindings::error::{Error, Fallible};
 use crate::dom::bindings::num::Finite;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::window::Window;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/touch.rs b/components/script/dom/touch.rs
index e89310cb231..4fb66c77b4e 100644
--- a/components/script/dom/touch.rs
+++ b/components/script/dom/touch.rs
@@ -5,7 +5,7 @@
 use crate::dom::bindings::codegen::Bindings::TouchBinding;
 use crate::dom::bindings::codegen::Bindings::TouchBinding::TouchMethods;
 use crate::dom::bindings::num::Finite;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{DomRoot, MutDom};
 use crate::dom::eventtarget::EventTarget;
 use crate::dom::window::Window;
diff --git a/components/script/dom/touchlist.rs b/components/script/dom/touchlist.rs
index 5f760daba87..16389643806 100644
--- a/components/script/dom/touchlist.rs
+++ b/components/script/dom/touchlist.rs
@@ -4,7 +4,7 @@
 
 use crate::dom::bindings::codegen::Bindings::TouchListBinding;
 use crate::dom::bindings::codegen::Bindings::TouchListBinding::TouchListMethods;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::touch::Touch;
 use crate::dom::window::Window;
diff --git a/components/script/dom/transitionevent.rs b/components/script/dom/transitionevent.rs
index a855fbc1f14..e5640766f0e 100644
--- a/components/script/dom/transitionevent.rs
+++ b/components/script/dom/transitionevent.rs
@@ -4,7 +4,9 @@
 
 use crate::dom::bindings::codegen::Bindings::EventBinding::EventMethods;
 use crate::dom::bindings::codegen::Bindings::TransitionEventBinding;
-use crate::dom::bindings::codegen::Bindings::TransitionEventBinding::{TransitionEventInit, TransitionEventMethods};
+use crate::dom::bindings::codegen::Bindings::TransitionEventBinding::{
+    TransitionEventInit, TransitionEventMethods,
+};
 use crate::dom::bindings::error::Fallible;
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::num::Finite;
diff --git a/components/script/dom/treewalker.rs b/components/script/dom/treewalker.rs
index 11b462becf3..2b3743d6f5a 100644
--- a/components/script/dom/treewalker.rs
+++ b/components/script/dom/treewalker.rs
@@ -9,7 +9,7 @@ use crate::dom::bindings::codegen::Bindings::NodeFilterBinding::NodeFilterConsta
 use crate::dom::bindings::codegen::Bindings::TreeWalkerBinding;
 use crate::dom::bindings::codegen::Bindings::TreeWalkerBinding::TreeWalkerMethods;
 use crate::dom::bindings::error::{Error, Fallible};
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot, MutDom};
 use crate::dom::document::Document;
 use crate::dom::node::Node;
diff --git a/components/script/dom/url.rs b/components/script/dom/url.rs
index 22f5f9a0fdc..fbca478868e 100644
--- a/components/script/dom/url.rs
+++ b/components/script/dom/url.rs
@@ -5,7 +5,7 @@
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::URLBinding::{self, URLMethods};
 use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{DomRoot, MutNullableDom};
 use crate::dom::bindings::str::{DOMString, USVString};
 use crate::dom::blob::Blob;
@@ -13,9 +13,9 @@ use crate::dom::globalscope::GlobalScope;
 use crate::dom::urlhelper::UrlHelper;
 use crate::dom::urlsearchparams::URLSearchParams;
 use dom_struct::dom_struct;
-use net_traits::{CoreResourceMsg, IpcSend};
 use net_traits::blob_url_store::{get_blob_origin, parse_blob_url};
 use net_traits::filemanager_thread::FileManagerThreadMsg;
+use net_traits::{CoreResourceMsg, IpcSend};
 use profile_traits::ipc;
 use servo_url::ServoUrl;
 use std::default::Default;
diff --git a/components/script/dom/urlsearchparams.rs b/components/script/dom/urlsearchparams.rs
index 5a417b73bd9..d609c773a3e 100644
--- a/components/script/dom/urlsearchparams.rs
+++ b/components/script/dom/urlsearchparams.rs
@@ -8,7 +8,7 @@ use crate::dom::bindings::codegen::Bindings::URLSearchParamsBinding::URLSearchPa
 use crate::dom::bindings::codegen::UnionTypes::USVStringOrURLSearchParams;
 use crate::dom::bindings::error::Fallible;
 use crate::dom::bindings::iterable::Iterable;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::{DOMString, USVString};
 use crate::dom::bindings::weakref::MutableWeakRef;
diff --git a/components/script/dom/userscripts.rs b/components/script/dom/userscripts.rs
index bbd0e2f45a8..3ca0813953d 100644
--- a/components/script/dom/userscripts.rs
+++ b/components/script/dom/userscripts.rs
@@ -8,7 +8,7 @@ use crate::dom::htmlheadelement::HTMLHeadElement;
 use crate::dom::node::Node;
 use js::jsval::UndefinedValue;
 use servo_config::opts;
-use std::fs::{File, read_dir};
+use std::fs::{read_dir, File};
 use std::io::Read;
 use std::path::PathBuf;
 
diff --git a/components/script/dom/validitystate.rs b/components/script/dom/validitystate.rs
index 0ef35ea455f..f10a1deeb38 100755
--- a/components/script/dom/validitystate.rs
+++ b/components/script/dom/validitystate.rs
@@ -4,7 +4,7 @@
 
 use crate::dom::bindings::codegen::Bindings::ValidityStateBinding;
 use crate::dom::bindings::codegen::Bindings::ValidityStateBinding::ValidityStateMethods;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::element::Element;
 use crate::dom::window::Window;
diff --git a/components/script/dom/vr.rs b/components/script/dom/vr.rs
index eb6fc7cd88f..6cf6bed104b 100644
--- a/components/script/dom/vr.rs
+++ b/components/script/dom/vr.rs
@@ -8,7 +8,7 @@ use crate::dom::bindings::codegen::Bindings::VRBinding::VRMethods;
 use crate::dom::bindings::codegen::Bindings::VRDisplayBinding::VRDisplayMethods;
 use crate::dom::bindings::error::Error;
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::event::Event;
 use crate::dom::eventtarget::EventTarget;
diff --git a/components/script/dom/vrdisplay.rs b/components/script/dom/vrdisplay.rs
index 1d2a2370b1e..1cf43df4553 100644
--- a/components/script/dom/vrdisplay.rs
+++ b/components/script/dom/vrdisplay.rs
@@ -16,7 +16,7 @@ use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowBinding::Windo
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::num::Finite;
 use crate::dom::bindings::refcounted::Trusted;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::{DomRoot, MutDom, MutNullableDom};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::event::Event;
diff --git a/components/script/dom/vrdisplaycapabilities.rs b/components/script/dom/vrdisplaycapabilities.rs
index a4e7025432a..6c178a15268 100644
--- a/components/script/dom/vrdisplaycapabilities.rs
+++ b/components/script/dom/vrdisplaycapabilities.rs
@@ -5,7 +5,7 @@
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::VRDisplayCapabilitiesBinding;
 use crate::dom::bindings::codegen::Bindings::VRDisplayCapabilitiesBinding::VRDisplayCapabilitiesMethods;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::globalscope::GlobalScope;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/vrdisplayevent.rs b/components/script/dom/vrdisplayevent.rs
index abfb9075e52..03155c14b5d 100644
--- a/components/script/dom/vrdisplayevent.rs
+++ b/components/script/dom/vrdisplayevent.rs
@@ -8,7 +8,7 @@ use crate::dom::bindings::codegen::Bindings::VRDisplayEventBinding::VRDisplayEve
 use crate::dom::bindings::codegen::Bindings::VRDisplayEventBinding::VRDisplayEventReason;
 use crate::dom::bindings::error::Fallible;
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::event::Event;
diff --git a/components/script/dom/vreyeparameters.rs b/components/script/dom/vreyeparameters.rs
index aaf6f3d517a..a37ad7ffe87 100644
--- a/components/script/dom/vreyeparameters.rs
+++ b/components/script/dom/vreyeparameters.rs
@@ -5,13 +5,13 @@
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::VREyeParametersBinding;
 use crate::dom::bindings::codegen::Bindings::VREyeParametersBinding::VREyeParametersMethods;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::vrfieldofview::VRFieldOfView;
 use dom_struct::dom_struct;
 use js::jsapi::{Heap, JSContext, JSObject};
-use js::typedarray::{Float32Array, CreateWith};
+use js::typedarray::{CreateWith, Float32Array};
 use std::default::Default;
 use std::ptr;
 use std::ptr::NonNull;
diff --git a/components/script/dom/vrfieldofview.rs b/components/script/dom/vrfieldofview.rs
index fa9d69d4086..81fe31ba5c4 100644
--- a/components/script/dom/vrfieldofview.rs
+++ b/components/script/dom/vrfieldofview.rs
@@ -6,7 +6,7 @@ use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::VRFieldOfViewBinding;
 use crate::dom::bindings::codegen::Bindings::VRFieldOfViewBinding::VRFieldOfViewMethods;
 use crate::dom::bindings::num::Finite;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::globalscope::GlobalScope;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/vrframedata.rs b/components/script/dom/vrframedata.rs
index 054e5b973ab..d7817a6dd18 100644
--- a/components/script/dom/vrframedata.rs
+++ b/components/script/dom/vrframedata.rs
@@ -6,14 +6,14 @@ use crate::dom::bindings::codegen::Bindings::VRFrameDataBinding;
 use crate::dom::bindings::codegen::Bindings::VRFrameDataBinding::VRFrameDataMethods;
 use crate::dom::bindings::error::Fallible;
 use crate::dom::bindings::num::Finite;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::vrpose::VRPose;
 use crate::dom::window::Window;
 use dom_struct::dom_struct;
 use js::jsapi::{Heap, JSContext, JSObject};
-use js::typedarray::{Float32Array, CreateWith};
+use js::typedarray::{CreateWith, Float32Array};
 use std::cell::Cell;
 use std::ptr;
 use std::ptr::NonNull;
diff --git a/components/script/dom/vrpose.rs b/components/script/dom/vrpose.rs
index c325828ccd4..11cd7e59855 100644
--- a/components/script/dom/vrpose.rs
+++ b/components/script/dom/vrpose.rs
@@ -4,12 +4,12 @@
 
 use crate::dom::bindings::codegen::Bindings::VRPoseBinding;
 use crate::dom::bindings::codegen::Bindings::VRPoseBinding::VRPoseMethods;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::globalscope::GlobalScope;
 use dom_struct::dom_struct;
 use js::jsapi::{Heap, JSContext, JSObject};
-use js::typedarray::{Float32Array, CreateWith};
+use js::typedarray::{CreateWith, Float32Array};
 use std::ptr;
 use std::ptr::NonNull;
 use webvr_traits::webvr;
diff --git a/components/script/dom/vrstageparameters.rs b/components/script/dom/vrstageparameters.rs
index f7dddfc3ec2..5d768af222b 100644
--- a/components/script/dom/vrstageparameters.rs
+++ b/components/script/dom/vrstageparameters.rs
@@ -6,12 +6,12 @@ use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::VRStageParametersBinding;
 use crate::dom::bindings::codegen::Bindings::VRStageParametersBinding::VRStageParametersMethods;
 use crate::dom::bindings::num::Finite;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::globalscope::GlobalScope;
 use dom_struct::dom_struct;
 use js::jsapi::{Heap, JSContext, JSObject};
-use js::typedarray::{Float32Array, CreateWith};
+use js::typedarray::{CreateWith, Float32Array};
 use std::ptr;
 use std::ptr::NonNull;
 use webvr_traits::WebVRStageParameters;
diff --git a/components/script/dom/webgl2renderingcontext.rs b/components/script/dom/webgl2renderingcontext.rs
index c63c105a01e..275612bc69e 100644
--- a/components/script/dom/webgl2renderingcontext.rs
+++ b/components/script/dom/webgl2renderingcontext.rs
@@ -23,7 +23,9 @@ use crate::dom::webglbuffer::WebGLBuffer;
 use crate::dom::webglframebuffer::WebGLFramebuffer;
 use crate::dom::webglprogram::WebGLProgram;
 use crate::dom::webglrenderbuffer::WebGLRenderbuffer;
-use crate::dom::webglrenderingcontext::{LayoutCanvasWebGLRenderingContextHelpers, WebGLRenderingContext};
+use crate::dom::webglrenderingcontext::{
+    LayoutCanvasWebGLRenderingContextHelpers, WebGLRenderingContext,
+};
 use crate::dom::webglshader::WebGLShader;
 use crate::dom::webglshaderprecisionformat::WebGLShaderPrecisionFormat;
 use crate::dom::webgltexture::WebGLTexture;
diff --git a/components/script/dom/webgl_extensions/ext/angleinstancedarrays.rs b/components/script/dom/webgl_extensions/ext/angleinstancedarrays.rs
index 74d779a94a3..21712a6a90c 100644
--- a/components/script/dom/webgl_extensions/ext/angleinstancedarrays.rs
+++ b/components/script/dom/webgl_extensions/ext/angleinstancedarrays.rs
@@ -2,15 +2,15 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use super::{WebGLExtension, WebGLExtensionSpec, WebGLExtensions};
 use canvas_traits::webgl::WebGLVersion;
 use crate::dom::bindings::codegen::Bindings::ANGLEInstancedArraysBinding;
 use crate::dom::bindings::codegen::Bindings::ANGLEInstancedArraysBinding::ANGLEInstancedArraysConstants;
 use crate::dom::bindings::codegen::Bindings::ANGLEInstancedArraysBinding::ANGLEInstancedArraysMethods;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::webglrenderingcontext::WebGLRenderingContext;
 use dom_struct::dom_struct;
-use super::{WebGLExtension, WebGLExtensions, WebGLExtensionSpec};
 
 #[dom_struct]
 pub struct ANGLEInstancedArrays {
diff --git a/components/script/dom/webgl_extensions/ext/extblendminmax.rs b/components/script/dom/webgl_extensions/ext/extblendminmax.rs
index 060595f5c51..19aa0e06a97 100644
--- a/components/script/dom/webgl_extensions/ext/extblendminmax.rs
+++ b/components/script/dom/webgl_extensions/ext/extblendminmax.rs
@@ -2,13 +2,13 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use super::{WebGLExtension, WebGLExtensionSpec, WebGLExtensions};
 use canvas_traits::webgl::WebGLVersion;
 use crate::dom::bindings::codegen::Bindings::EXTBlendMinmaxBinding;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::webglrenderingcontext::WebGLRenderingContext;
 use dom_struct::dom_struct;
-use super::{WebGLExtension, WebGLExtensions, WebGLExtensionSpec};
 
 #[dom_struct]
 pub struct EXTBlendMinmax {
diff --git a/components/script/dom/webgl_extensions/ext/extcolorbufferhalffloat.rs b/components/script/dom/webgl_extensions/ext/extcolorbufferhalffloat.rs
index d1500aa2c9e..aa1d25f024b 100644
--- a/components/script/dom/webgl_extensions/ext/extcolorbufferhalffloat.rs
+++ b/components/script/dom/webgl_extensions/ext/extcolorbufferhalffloat.rs
@@ -2,14 +2,14 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use super::{WebGLExtension, WebGLExtensionSpec, WebGLExtensions};
 use canvas_traits::webgl::WebGLVersion;
 use crate::dom::bindings::codegen::Bindings::EXTColorBufferHalfFloatBinding;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::webgl_extensions::ext::oestexturehalffloat::OESTextureHalfFloat;
 use crate::dom::webglrenderingcontext::WebGLRenderingContext;
 use dom_struct::dom_struct;
-use super::{WebGLExtension, WebGLExtensions, WebGLExtensionSpec};
 
 #[dom_struct]
 pub struct EXTColorBufferHalfFloat {
diff --git a/components/script/dom/webgl_extensions/ext/extshadertexturelod.rs b/components/script/dom/webgl_extensions/ext/extshadertexturelod.rs
index 4faf199bfde..219904b13b7 100644
--- a/components/script/dom/webgl_extensions/ext/extshadertexturelod.rs
+++ b/components/script/dom/webgl_extensions/ext/extshadertexturelod.rs
@@ -2,13 +2,13 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use canvas_traits::webgl::{WebGLVersion, is_gles};
+use super::{WebGLExtension, WebGLExtensionSpec, WebGLExtensions};
+use canvas_traits::webgl::{is_gles, WebGLVersion};
 use crate::dom::bindings::codegen::Bindings::EXTShaderTextureLodBinding;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::webglrenderingcontext::WebGLRenderingContext;
 use dom_struct::dom_struct;
-use super::{WebGLExtension, WebGLExtensions, WebGLExtensionSpec};
 
 #[dom_struct]
 pub struct EXTShaderTextureLod {
diff --git a/components/script/dom/webgl_extensions/ext/exttexturefilteranisotropic.rs b/components/script/dom/webgl_extensions/ext/exttexturefilteranisotropic.rs
index 9b491c685bf..f487ab4775e 100644
--- a/components/script/dom/webgl_extensions/ext/exttexturefilteranisotropic.rs
+++ b/components/script/dom/webgl_extensions/ext/exttexturefilteranisotropic.rs
@@ -2,14 +2,14 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use super::{WebGLExtension, WebGLExtensionSpec, WebGLExtensions};
 use canvas_traits::webgl::WebGLVersion;
 use crate::dom::bindings::codegen::Bindings::EXTTextureFilterAnisotropicBinding;
 use crate::dom::bindings::codegen::Bindings::EXTTextureFilterAnisotropicBinding::EXTTextureFilterAnisotropicConstants;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::webglrenderingcontext::WebGLRenderingContext;
 use dom_struct::dom_struct;
-use super::{WebGLExtension, WebGLExtensions, WebGLExtensionSpec};
 
 #[dom_struct]
 pub struct EXTTextureFilterAnisotropic {
diff --git a/components/script/dom/webgl_extensions/ext/mod.rs b/components/script/dom/webgl_extensions/ext/mod.rs
index 54290ceb9eb..174653e3332 100644
--- a/components/script/dom/webgl_extensions/ext/mod.rs
+++ b/components/script/dom/webgl_extensions/ext/mod.rs
@@ -2,8 +2,8 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use super::{ext_constants, WebGLExtension, WebGLExtensionSpec, WebGLExtensions};
 use crate::dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLRenderingContextConstants as constants;
-use super::{ext_constants, WebGLExtension, WebGLExtensions, WebGLExtensionSpec};
 
 pub mod angleinstancedarrays;
 pub mod extblendminmax;
diff --git a/components/script/dom/webgl_extensions/ext/oeselementindexuint.rs b/components/script/dom/webgl_extensions/ext/oeselementindexuint.rs
index 65e6829831f..2a06fbe35f2 100644
--- a/components/script/dom/webgl_extensions/ext/oeselementindexuint.rs
+++ b/components/script/dom/webgl_extensions/ext/oeselementindexuint.rs
@@ -2,13 +2,13 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use canvas_traits::webgl::{WebGLVersion, is_gles};
+use super::{WebGLExtension, WebGLExtensionSpec, WebGLExtensions};
+use canvas_traits::webgl::{is_gles, WebGLVersion};
 use crate::dom::bindings::codegen::Bindings::OESElementIndexUintBinding;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::webglrenderingcontext::WebGLRenderingContext;
 use dom_struct::dom_struct;
-use super::{WebGLExtension, WebGLExtensions, WebGLExtensionSpec};
 
 #[dom_struct]
 pub struct OESElementIndexUint {
diff --git a/components/script/dom/webgl_extensions/ext/oesstandardderivatives.rs b/components/script/dom/webgl_extensions/ext/oesstandardderivatives.rs
index 6afef692953..6a2c76aedb1 100644
--- a/components/script/dom/webgl_extensions/ext/oesstandardderivatives.rs
+++ b/components/script/dom/webgl_extensions/ext/oesstandardderivatives.rs
@@ -2,14 +2,14 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use canvas_traits::webgl::{WebGLVersion, is_gles};
+use super::{WebGLExtension, WebGLExtensionSpec, WebGLExtensions};
+use canvas_traits::webgl::{is_gles, WebGLVersion};
 use crate::dom::bindings::codegen::Bindings::OESStandardDerivativesBinding;
 use crate::dom::bindings::codegen::Bindings::OESStandardDerivativesBinding::OESStandardDerivativesConstants;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::webglrenderingcontext::WebGLRenderingContext;
 use dom_struct::dom_struct;
-use super::{WebGLExtension, WebGLExtensions, WebGLExtensionSpec};
 
 #[dom_struct]
 pub struct OESStandardDerivatives {
diff --git a/components/script/dom/webgl_extensions/ext/oestexturefloat.rs b/components/script/dom/webgl_extensions/ext/oestexturefloat.rs
index 0c468cf1fa2..6db9c6473d1 100644
--- a/components/script/dom/webgl_extensions/ext/oestexturefloat.rs
+++ b/components/script/dom/webgl_extensions/ext/oestexturefloat.rs
@@ -2,13 +2,15 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use super::{
+    constants as webgl, ext_constants as gl, WebGLExtension, WebGLExtensionSpec, WebGLExtensions,
+};
 use canvas_traits::webgl::WebGLVersion;
 use crate::dom::bindings::codegen::Bindings::OESTextureFloatBinding;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::webglrenderingcontext::WebGLRenderingContext;
 use dom_struct::dom_struct;
-use super::{constants as webgl, ext_constants as gl, WebGLExtension, WebGLExtensions, WebGLExtensionSpec};
 
 #[dom_struct]
 pub struct OESTextureFloat {
diff --git a/components/script/dom/webgl_extensions/ext/oestexturefloatlinear.rs b/components/script/dom/webgl_extensions/ext/oestexturefloatlinear.rs
index 57d7a594c22..31fb196efa2 100644
--- a/components/script/dom/webgl_extensions/ext/oestexturefloatlinear.rs
+++ b/components/script/dom/webgl_extensions/ext/oestexturefloatlinear.rs
@@ -2,12 +2,12 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use super::{constants as webgl, WebGLExtension, WebGLExtensionSpec, WebGLExtensions};
 use crate::dom::bindings::codegen::Bindings::OESTextureFloatLinearBinding;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::webglrenderingcontext::WebGLRenderingContext;
 use dom_struct::dom_struct;
-use super::{constants as webgl, WebGLExtension, WebGLExtensions, WebGLExtensionSpec};
 
 #[dom_struct]
 pub struct OESTextureFloatLinear {
diff --git a/components/script/dom/webgl_extensions/ext/oestexturehalffloat.rs b/components/script/dom/webgl_extensions/ext/oestexturehalffloat.rs
index 695d77ee67b..1ab369b8304 100644
--- a/components/script/dom/webgl_extensions/ext/oestexturehalffloat.rs
+++ b/components/script/dom/webgl_extensions/ext/oestexturehalffloat.rs
@@ -2,13 +2,17 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use super::{
+    constants as webgl, ext_constants as gl, WebGLExtension, WebGLExtensionSpec, WebGLExtensions,
+};
 use canvas_traits::webgl::WebGLVersion;
-use crate::dom::bindings::codegen::Bindings::OESTextureHalfFloatBinding::{self, OESTextureHalfFloatConstants};
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::codegen::Bindings::OESTextureHalfFloatBinding::{
+    self, OESTextureHalfFloatConstants,
+};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::webglrenderingcontext::WebGLRenderingContext;
 use dom_struct::dom_struct;
-use super::{constants as webgl, ext_constants as gl, WebGLExtension, WebGLExtensions, WebGLExtensionSpec};
 
 #[dom_struct]
 pub struct OESTextureHalfFloat {
diff --git a/components/script/dom/webgl_extensions/ext/oestexturehalffloatlinear.rs b/components/script/dom/webgl_extensions/ext/oestexturehalffloatlinear.rs
index dd44caca9ca..07109f6576e 100644
--- a/components/script/dom/webgl_extensions/ext/oestexturehalffloatlinear.rs
+++ b/components/script/dom/webgl_extensions/ext/oestexturehalffloatlinear.rs
@@ -2,13 +2,13 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use super::{WebGLExtension, WebGLExtensionSpec, WebGLExtensions};
 use crate::dom::bindings::codegen::Bindings::OESTextureHalfFloatBinding::OESTextureHalfFloatConstants;
 use crate::dom::bindings::codegen::Bindings::OESTextureHalfFloatLinearBinding;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::webglrenderingcontext::WebGLRenderingContext;
 use dom_struct::dom_struct;
-use super::{WebGLExtension, WebGLExtensions, WebGLExtensionSpec};
 
 #[dom_struct]
 pub struct OESTextureHalfFloatLinear {
diff --git a/components/script/dom/webgl_extensions/ext/oesvertexarrayobject.rs b/components/script/dom/webgl_extensions/ext/oesvertexarrayobject.rs
index ba1256538d4..5238a4c287c 100644
--- a/components/script/dom/webgl_extensions/ext/oesvertexarrayobject.rs
+++ b/components/script/dom/webgl_extensions/ext/oesvertexarrayobject.rs
@@ -2,15 +2,17 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use super::{WebGLExtension, WebGLExtensionSpec, WebGLExtensions};
 use canvas_traits::webgl::WebGLVersion;
-use crate::dom::bindings::codegen::Bindings::OESVertexArrayObjectBinding::{self, OESVertexArrayObjectMethods};
 use crate::dom::bindings::codegen::Bindings::OESVertexArrayObjectBinding::OESVertexArrayObjectConstants;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::codegen::Bindings::OESVertexArrayObjectBinding::{
+    self, OESVertexArrayObjectMethods,
+};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::webglrenderingcontext::WebGLRenderingContext;
 use crate::dom::webglvertexarrayobjectoes::WebGLVertexArrayObjectOES;
 use dom_struct::dom_struct;
-use super::{WebGLExtension, WebGLExtensions, WebGLExtensionSpec};
 
 #[dom_struct]
 pub struct OESVertexArrayObject {
diff --git a/components/script/dom/webgl_extensions/ext/webglcolorbufferfloat.rs b/components/script/dom/webgl_extensions/ext/webglcolorbufferfloat.rs
index aceaf026728..263d21fe882 100644
--- a/components/script/dom/webgl_extensions/ext/webglcolorbufferfloat.rs
+++ b/components/script/dom/webgl_extensions/ext/webglcolorbufferfloat.rs
@@ -2,14 +2,14 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use super::{WebGLExtension, WebGLExtensionSpec, WebGLExtensions};
 use canvas_traits::webgl::WebGLVersion;
 use crate::dom::bindings::codegen::Bindings::WEBGLColorBufferFloatBinding;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::webgl_extensions::ext::oestexturefloat::OESTextureFloat;
 use crate::dom::webglrenderingcontext::WebGLRenderingContext;
 use dom_struct::dom_struct;
-use super::{WebGLExtension, WebGLExtensions, WebGLExtensionSpec};
 
 #[dom_struct]
 pub struct WEBGLColorBufferFloat {
diff --git a/components/script/dom/webgl_extensions/extension.rs b/components/script/dom/webgl_extensions/extension.rs
index 6256eb4b608..53e3e8b21a7 100644
--- a/components/script/dom/webgl_extensions/extension.rs
+++ b/components/script/dom/webgl_extensions/extension.rs
@@ -2,12 +2,12 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use super::WebGLExtensions;
 use canvas_traits::webgl::WebGLVersion;
 use crate::dom::bindings::reflector::DomObject;
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::trace::JSTraceable;
 use crate::dom::webglrenderingcontext::WebGLRenderingContext;
-use super::WebGLExtensions;
 
 /// Trait implemented by WebGL extensions.
 pub trait WebGLExtension: Sized
diff --git a/components/script/dom/webgl_extensions/extensions.rs b/components/script/dom/webgl_extensions/extensions.rs
index 52f4bf4d47f..76c995068dc 100644
--- a/components/script/dom/webgl_extensions/extensions.rs
+++ b/components/script/dom/webgl_extensions/extensions.rs
@@ -2,6 +2,8 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use super::wrapper::{TypedWebGLExtensionWrapper, WebGLExtensionWrapper};
+use super::{ext, WebGLExtension, WebGLExtensionSpec};
 use canvas_traits::webgl::WebGLVersion;
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::ANGLEInstancedArraysBinding::ANGLEInstancedArraysConstants;
@@ -23,8 +25,6 @@ use malloc_size_of::MallocSizeOf;
 use std::collections::HashMap;
 use std::iter::FromIterator;
 use std::ptr::NonNull;
-use super::{ext, WebGLExtension, WebGLExtensionSpec};
-use super::wrapper::{WebGLExtensionWrapper, TypedWebGLExtensionWrapper};
 
 // Data types that are implemented for texImage2D and texSubImage2D in a WebGL 1.0 context
 // but must trigger a InvalidValue error until the related WebGL Extensions are enabled.
diff --git a/components/script/dom/webgl_extensions/wrapper.rs b/components/script/dom/webgl_extensions/wrapper.rs
index 6b39fc0e2bc..9918952dc73 100644
--- a/components/script/dom/webgl_extensions/wrapper.rs
+++ b/components/script/dom/webgl_extensions/wrapper.rs
@@ -2,6 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use super::{WebGLExtension, WebGLExtensionSpec, WebGLExtensions};
 use crate::dom::bindings::reflector::DomObject;
 use crate::dom::bindings::root::MutNullableDom;
 use crate::dom::bindings::trace::JSTraceable;
@@ -10,7 +11,6 @@ use js::jsapi::JSObject;
 use malloc_size_of::MallocSizeOf;
 use std::any::Any;
 use std::ptr::NonNull;
-use super::{WebGLExtension, WebGLExtensions, WebGLExtensionSpec};
 
 /// Trait used internally by WebGLExtensions to store and
 /// handle the different WebGL extensions in a common list.
diff --git a/components/script/dom/webgl_validations/tex_image_2d.rs b/components/script/dom/webgl_validations/tex_image_2d.rs
index b60189f9382..125ff4918a8 100644
--- a/components/script/dom/webgl_validations/tex_image_2d.rs
+++ b/components/script/dom/webgl_validations/tex_image_2d.rs
@@ -2,13 +2,13 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use super::types::{TexDataType, TexFormat, TexImageTarget};
+use super::WebGLValidator;
 use canvas_traits::webgl::WebGLError::*;
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::webglrenderingcontext::WebGLRenderingContext;
 use crate::dom::webgltexture::WebGLTexture;
 use std::{self, fmt};
-use super::WebGLValidator;
-use super::types::{TexImageTarget, TexDataType, TexFormat};
 
 /// The errors that the texImage* family of functions can generate.
 #[derive(Debug)]
diff --git a/components/script/dom/webglactiveinfo.rs b/components/script/dom/webglactiveinfo.rs
index 2f6d9ee54f0..fed724c25a1 100644
--- a/components/script/dom/webglactiveinfo.rs
+++ b/components/script/dom/webglactiveinfo.rs
@@ -5,7 +5,7 @@
 // https://www.khronos.org/registry/webgl/specs/latest/1.0/webgl.idl
 use crate::dom::bindings::codegen::Bindings::WebGLActiveInfoBinding;
 use crate::dom::bindings::codegen::Bindings::WebGLActiveInfoBinding::WebGLActiveInfoMethods;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::window::Window;
diff --git a/components/script/dom/webglbuffer.rs b/components/script/dom/webglbuffer.rs
index 28f0f7f1aa6..39b2080da39 100644
--- a/components/script/dom/webglbuffer.rs
+++ b/components/script/dom/webglbuffer.rs
@@ -3,12 +3,12 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 // https://www.khronos.org/registry/webgl/specs/latest/1.0/webgl.idl
-use canvas_traits::webgl::{WebGLBufferId, WebGLCommand, WebGLError, WebGLResult};
 use canvas_traits::webgl::webgl_channel;
+use canvas_traits::webgl::{WebGLBufferId, WebGLCommand, WebGLError, WebGLResult};
 use crate::dom::bindings::codegen::Bindings::WebGLBufferBinding;
 use crate::dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLRenderingContextConstants;
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::webglobject::WebGLObject;
 use crate::dom::webglrenderingcontext::WebGLRenderingContext;
diff --git a/components/script/dom/webglframebuffer.rs b/components/script/dom/webglframebuffer.rs
index a5a130efea6..ff241f8d78e 100644
--- a/components/script/dom/webglframebuffer.rs
+++ b/components/script/dom/webglframebuffer.rs
@@ -3,13 +3,13 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 // https://www.khronos.org/registry/webgl/specs/latest/1.0/webgl.idl
+use canvas_traits::webgl::{webgl_channel, WebGLError, WebGLResult};
 use canvas_traits::webgl::{WebGLCommand, WebGLFramebufferBindingRequest, WebGLFramebufferId};
-use canvas_traits::webgl::{WebGLResult, WebGLError, webgl_channel};
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::WebGLFramebufferBinding;
 use crate::dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLRenderingContextConstants as constants;
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::webglobject::WebGLObject;
 use crate::dom::webglrenderbuffer::WebGLRenderbuffer;
diff --git a/components/script/dom/webglprogram.rs b/components/script/dom/webglprogram.rs
index 1a835da8c8d..75dd2bd89ac 100644
--- a/components/script/dom/webglprogram.rs
+++ b/components/script/dom/webglprogram.rs
@@ -3,13 +3,13 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 // https://www.khronos.org/registry/webgl/specs/latest/1.0/webgl.idl
+use canvas_traits::webgl::{webgl_channel, WebGLProgramId, WebGLResult};
 use canvas_traits::webgl::{ActiveAttribInfo, ActiveUniformInfo, WebGLCommand, WebGLError};
-use canvas_traits::webgl::{WebGLProgramId, WebGLResult, webgl_channel};
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::WebGLProgramBinding;
 use crate::dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLRenderingContextConstants as constants;
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::{DomRoot, MutNullableDom};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::webglactiveinfo::WebGLActiveInfo;
diff --git a/components/script/dom/webglrenderbuffer.rs b/components/script/dom/webglrenderbuffer.rs
index 616bfc353e3..4e29172c070 100644
--- a/components/script/dom/webglrenderbuffer.rs
+++ b/components/script/dom/webglrenderbuffer.rs
@@ -3,14 +3,16 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 // https://www.khronos.org/registry/webgl/specs/latest/1.0/webgl.idl
-use canvas_traits::webgl::{WebGLCommand, WebGLError, WebGLRenderbufferId, WebGLResult, is_gles, webgl_channel};
+use canvas_traits::webgl::{
+    is_gles, webgl_channel, WebGLCommand, WebGLError, WebGLRenderbufferId, WebGLResult,
+};
 use crate::dom::bindings::codegen::Bindings::EXTColorBufferHalfFloatBinding::EXTColorBufferHalfFloatConstants;
 use crate::dom::bindings::codegen::Bindings::WEBGLColorBufferFloatBinding::WEBGLColorBufferFloatConstants;
 use crate::dom::bindings::codegen::Bindings::WebGL2RenderingContextBinding::WebGL2RenderingContextConstants;
 use crate::dom::bindings::codegen::Bindings::WebGLRenderbufferBinding;
 use crate::dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLRenderingContextConstants as constants;
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::webglobject::WebGLObject;
 use crate::dom::webglrenderingcontext::WebGLRenderingContext;
diff --git a/components/script/dom/webglrenderingcontext.rs b/components/script/dom/webglrenderingcontext.rs
index 31d2ea67c88..2d431b93412 100644
--- a/components/script/dom/webglrenderingcontext.rs
+++ b/components/script/dom/webglrenderingcontext.rs
@@ -5,12 +5,12 @@
 #[cfg(feature = "webgl_backtrace")]
 use backtrace::Backtrace;
 use byteorder::{ByteOrder, NativeEndian, WriteBytesExt};
+use canvas_traits::webgl::WebGLError::*;
+use canvas_traits::webgl::{webgl_channel, WebGLVersion, WebVRCommand};
 use canvas_traits::webgl::{DOMToTextureCommand, Parameter, WebGLCommandBacktrace};
 use canvas_traits::webgl::{TexParameter, WebGLCommand, WebGLContextShareMode, WebGLError};
 use canvas_traits::webgl::{WebGLFramebufferBindingRequest, WebGLMsg, WebGLMsgSender};
 use canvas_traits::webgl::{WebGLProgramId, WebGLResult, WebGLSLVersion, WebGLSender};
-use canvas_traits::webgl::{WebGLVersion, WebVRCommand, webgl_channel};
-use canvas_traits::webgl::WebGLError::*;
 use crate::dom::bindings::codegen::Bindings::ANGLEInstancedArraysBinding::ANGLEInstancedArraysConstants;
 use crate::dom::bindings::codegen::Bindings::EXTBlendMinmaxBinding::EXTBlendMinmaxConstants;
 use crate::dom::bindings::codegen::Bindings::OESVertexArrayObjectBinding::OESVertexArrayObjectConstants;
@@ -25,23 +25,27 @@ use crate::dom::bindings::codegen::UnionTypes::Int32ArrayOrLongSequence;
 use crate::dom::bindings::conversions::{DerivedFrom, ToJSValConvertible};
 use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{Dom, DomOnceCell, DomRoot, LayoutDom, MutNullableDom};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::event::{Event, EventBubbles, EventCancelable};
-use crate::dom::htmlcanvaselement::HTMLCanvasElement;
 use crate::dom::htmlcanvaselement::utils as canvas_utils;
+use crate::dom::htmlcanvaselement::HTMLCanvasElement;
 use crate::dom::htmliframeelement::HTMLIFrameElement;
-use crate::dom::node::{Node, NodeDamage, document_from_node, window_from_node};
+use crate::dom::node::{document_from_node, window_from_node, Node, NodeDamage};
 use crate::dom::webgl_extensions::WebGLExtensions;
-use crate::dom::webgl_validations::WebGLValidator;
-use crate::dom::webgl_validations::tex_image_2d::{CommonTexImage2DValidator, CommonTexImage2DValidatorResult};
+use crate::dom::webgl_validations::tex_image_2d::{
+    CommonTexImage2DValidator, CommonTexImage2DValidatorResult,
+};
 use crate::dom::webgl_validations::tex_image_2d::{TexImage2DValidator, TexImage2DValidatorResult};
 use crate::dom::webgl_validations::types::{TexDataType, TexFormat, TexImageTarget};
+use crate::dom::webgl_validations::WebGLValidator;
 use crate::dom::webglactiveinfo::WebGLActiveInfo;
 use crate::dom::webglbuffer::WebGLBuffer;
 use crate::dom::webglcontextevent::WebGLContextEvent;
-use crate::dom::webglframebuffer::{WebGLFramebuffer, WebGLFramebufferAttachmentRoot, CompleteForRendering};
+use crate::dom::webglframebuffer::{
+    CompleteForRendering, WebGLFramebuffer, WebGLFramebufferAttachmentRoot,
+};
 use crate::dom::webglobject::WebGLObject;
 use crate::dom::webglprogram::WebGLProgram;
 use crate::dom::webglrenderbuffer::WebGLRenderbuffer;
@@ -56,10 +60,12 @@ use euclid::{Point2D, Rect, Size2D};
 use half::f16;
 use ipc_channel::ipc;
 use js::jsapi::{JSContext, JSObject, Type};
-use js::jsval::{BooleanValue, DoubleValue, Int32Value, UInt32Value, JSVal};
-use js::jsval::{ObjectValue, NullValue, UndefinedValue};
+use js::jsval::{BooleanValue, DoubleValue, Int32Value, JSVal, UInt32Value};
+use js::jsval::{NullValue, ObjectValue, UndefinedValue};
 use js::rust::CustomAutoRooterGuard;
-use js::typedarray::{ArrayBufferView, CreateWith, Float32, Float32Array, Int32, Int32Array, Uint32Array};
+use js::typedarray::{
+    ArrayBufferView, CreateWith, Float32, Float32Array, Int32, Int32Array, Uint32Array,
+};
 use js::typedarray::{TypedArray, TypedArrayElementCreator};
 use net_traits::image::base::PixelFormat;
 use net_traits::image_cache::ImageResponse;
diff --git a/components/script/dom/webglshader.rs b/components/script/dom/webglshader.rs
index 9add3e686b5..395bb9a9234 100644
--- a/components/script/dom/webglshader.rs
+++ b/components/script/dom/webglshader.rs
@@ -3,18 +3,18 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 // https://www.khronos.org/registry/webgl/specs/latest/1.0/webgl.idl
+use canvas_traits::webgl::{webgl_channel, WebGLVersion};
 use canvas_traits::webgl::{WebGLCommand, WebGLError};
 use canvas_traits::webgl::{WebGLResult, WebGLSLVersion, WebGLShaderId};
-use canvas_traits::webgl::{WebGLVersion, webgl_channel};
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::WebGLShaderBinding;
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
-use crate::dom::webgl_extensions::WebGLExtensions;
 use crate::dom::webgl_extensions::ext::extshadertexturelod::EXTShaderTextureLod;
 use crate::dom::webgl_extensions::ext::oesstandardderivatives::OESStandardDerivatives;
+use crate::dom::webgl_extensions::WebGLExtensions;
 use crate::dom::webglobject::WebGLObject;
 use crate::dom::webglrenderingcontext::WebGLRenderingContext;
 use dom_struct::dom_struct;
@@ -22,7 +22,7 @@ use mozangle::shaders::{BuiltInResources, Output, ShaderValidator};
 use offscreen_gl_context::GLLimits;
 use std::cell::Cell;
 use std::os::raw::c_int;
-use std::sync::{ONCE_INIT, Once};
+use std::sync::{Once, ONCE_INIT};
 
 #[derive(Clone, Copy, Debug, JSTraceable, MallocSizeOf, PartialEq)]
 pub enum ShaderCompilationStatus {
diff --git a/components/script/dom/webglshaderprecisionformat.rs b/components/script/dom/webglshaderprecisionformat.rs
index d0551554a96..b8d8da299d5 100644
--- a/components/script/dom/webglshaderprecisionformat.rs
+++ b/components/script/dom/webglshaderprecisionformat.rs
@@ -7,7 +7,7 @@
 // https://www.khronos.org/registry/webgl/specs/latest/1.0/webgl.idl
 use crate::dom::bindings::codegen::Bindings::WebGLShaderPrecisionFormatBinding;
 use crate::dom::bindings::codegen::Bindings::WebGLShaderPrecisionFormatBinding::WebGLShaderPrecisionFormatMethods;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::window::Window;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/webgltexture.rs b/components/script/dom/webgltexture.rs
index 443c5d031a1..2cc42a91f42 100644
--- a/components/script/dom/webgltexture.rs
+++ b/components/script/dom/webgltexture.rs
@@ -4,16 +4,16 @@
 
 // https://www.khronos.org/registry/webgl/specs/latest/1.0/webgl.idl
 
+use canvas_traits::webgl::{webgl_channel, WebGLResult, WebGLTextureId};
 use canvas_traits::webgl::{DOMToTextureCommand, WebGLCommand, WebGLError};
-use canvas_traits::webgl::{WebGLResult, WebGLTextureId, webgl_channel};
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::EXTTextureFilterAnisotropicBinding::EXTTextureFilterAnisotropicConstants;
 use crate::dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLRenderingContextConstants as constants;
 use crate::dom::bindings::codegen::Bindings::WebGLTextureBinding;
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::DomRoot;
-use crate::dom::webgl_validations::types::{TexImageTarget, TexFormat, TexDataType};
+use crate::dom::webgl_validations::types::{TexDataType, TexFormat, TexImageTarget};
 use crate::dom::webglobject::WebGLObject;
 use crate::dom::webglrenderingcontext::WebGLRenderingContext;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/webgluniformlocation.rs b/components/script/dom/webgluniformlocation.rs
index 58e51048f54..4b8250ab902 100644
--- a/components/script/dom/webgluniformlocation.rs
+++ b/components/script/dom/webgluniformlocation.rs
@@ -5,7 +5,7 @@
 // https://www.khronos.org/registry/webgl/specs/latest/1.0/webgl.idl
 use canvas_traits::webgl::WebGLProgramId;
 use crate::dom::bindings::codegen::Bindings::WebGLUniformLocationBinding;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::window::Window;
 use dom_struct::dom_struct;
diff --git a/components/script/dom/webglvertexarrayobjectoes.rs b/components/script/dom/webglvertexarrayobjectoes.rs
index 101e68679c6..38c86b7cdc4 100644
--- a/components/script/dom/webglvertexarrayobjectoes.rs
+++ b/components/script/dom/webglvertexarrayobjectoes.rs
@@ -2,12 +2,14 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use canvas_traits::webgl::{ActiveAttribInfo, WebGLCommand, WebGLError, WebGLResult, WebGLVertexArrayId};
+use canvas_traits::webgl::{
+    ActiveAttribInfo, WebGLCommand, WebGLError, WebGLResult, WebGLVertexArrayId,
+};
 use crate::dom::bindings::cell::DomRefCell;
 use crate::dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLRenderingContextConstants as constants;
 use crate::dom::bindings::codegen::Bindings::WebGLVertexArrayObjectOESBinding;
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::{Dom, DomRoot, MutNullableDom};
 use crate::dom::webglbuffer::WebGLBuffer;
 use crate::dom::webglobject::WebGLObject;
diff --git a/components/script/dom/websocket.rs b/components/script/dom/websocket.rs
index d7a90eca8fb..b6c0de92277 100644
--- a/components/script/dom/websocket.rs
+++ b/components/script/dom/websocket.rs
@@ -11,9 +11,9 @@ use crate::dom::bindings::conversions::ToJSValConvertible;
 use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::refcounted::Trusted;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::DomRoot;
-use crate::dom::bindings::str::{DOMString, USVString, is_token};
+use crate::dom::bindings::str::{is_token, DOMString, USVString};
 use crate::dom::blob::{Blob, BlobImpl};
 use crate::dom::closeevent::CloseEvent;
 use crate::dom::event::{Event, EventBubbles, EventCancelable};
@@ -22,19 +22,19 @@ use crate::dom::globalscope::GlobalScope;
 use crate::dom::messageevent::MessageEvent;
 use crate::script_runtime::CommonScriptMsg;
 use crate::script_runtime::ScriptThreadEventCategory::WebSocketEvent;
-use crate::task::{TaskOnce, TaskCanceller};
-use crate::task_source::TaskSource;
+use crate::task::{TaskCanceller, TaskOnce};
 use crate::task_source::websocket::WebsocketTaskSource;
+use crate::task_source::TaskSource;
 use dom_struct::dom_struct;
 use ipc_channel::ipc::{self, IpcReceiver, IpcSender};
 use js::jsapi::{JSAutoCompartment, JSObject};
 use js::jsval::UndefinedValue;
 use js::rust::CustomAutoRooterGuard;
 use js::typedarray::{ArrayBuffer, ArrayBufferView, CreateWith};
+use net_traits::request::{RequestInit, RequestMode};
+use net_traits::MessageData;
 use net_traits::{CoreResourceMsg, FetchChannels};
 use net_traits::{WebSocketDomAction, WebSocketNetworkEvent};
-use net_traits::MessageData;
-use net_traits::request::{RequestInit, RequestMode};
 use profile_traits::ipc as ProfiledIpc;
 use servo_url::{ImmutableOrigin, ServoUrl};
 use std::borrow::ToOwned;
diff --git a/components/script/dom/window.rs b/components/script/dom/window.rs
index 110c2cfb137..c9ec7317a3c 100644
--- a/components/script/dom/window.rs
+++ b/components/script/dom/window.rs
@@ -7,13 +7,17 @@ use base64;
 use bluetooth_traits::BluetoothRequest;
 use canvas_traits::webgl::WebGLChan;
 use crate::dom::bindings::cell::DomRefCell;
-use crate::dom::bindings::codegen::Bindings::DocumentBinding::{DocumentMethods, DocumentReadyState};
+use crate::dom::bindings::codegen::Bindings::DocumentBinding::{
+    DocumentMethods, DocumentReadyState,
+};
 use crate::dom::bindings::codegen::Bindings::FunctionBinding::Function;
 use crate::dom::bindings::codegen::Bindings::HistoryBinding::HistoryBinding::HistoryMethods;
 use crate::dom::bindings::codegen::Bindings::MediaQueryListBinding::MediaQueryListBinding::MediaQueryListMethods;
 use crate::dom::bindings::codegen::Bindings::PermissionStatusBinding::PermissionState;
 use crate::dom::bindings::codegen::Bindings::RequestBinding::RequestInit;
-use crate::dom::bindings::codegen::Bindings::WindowBinding::{self, FrameRequestCallback, WindowMethods};
+use crate::dom::bindings::codegen::Bindings::WindowBinding::{
+    self, FrameRequestCallback, WindowMethods,
+};
 use crate::dom::bindings::codegen::Bindings::WindowBinding::{ScrollBehavior, ScrollToOptions};
 use crate::dom::bindings::codegen::UnionTypes::RequestOrUSVString;
 use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
@@ -43,7 +47,7 @@ use crate::dom::mediaquerylist::{MediaQueryList, MediaQueryListMatchState};
 use crate::dom::mediaquerylistevent::MediaQueryListEvent;
 use crate::dom::messageevent::MessageEvent;
 use crate::dom::navigator::Navigator;
-use crate::dom::node::{Node, NodeDamage, document_from_node, from_untrusted_node_address};
+use crate::dom::node::{document_from_node, from_untrusted_node_address, Node, NodeDamage};
 use crate::dom::performance::Performance;
 use crate::dom::promise::Promise;
 use crate::dom::screen::Screen;
@@ -55,11 +59,12 @@ use crate::dom::workletglobalscope::WorkletGlobalScopeType;
 use crate::fetch;
 use crate::layout_image::fetch_image_for_layout;
 use crate::microtask::MicrotaskQueue;
-use crate::script_runtime::{CommonScriptMsg, ScriptChan, ScriptPort, ScriptThreadEventCategory, Runtime};
+use crate::script_runtime::{
+    CommonScriptMsg, Runtime, ScriptChan, ScriptPort, ScriptThreadEventCategory,
+};
 use crate::script_thread::{ImageCacheMsg, MainThreadScriptChan, MainThreadScriptMsg};
 use crate::script_thread::{ScriptThread, SendableMainThreadScriptChan};
 use crate::task::TaskCanceller;
-use crate::task_source::TaskSourceName;
 use crate::task_source::dom_manipulation::DOMManipulationTaskSource;
 use crate::task_source::file_reading::FileReadingTaskSource;
 use crate::task_source::history_traversal::HistoryTraversalTaskSource;
@@ -69,13 +74,14 @@ use crate::task_source::performance_timeline::PerformanceTimelineTaskSource;
 use crate::task_source::remote_event::RemoteEventTaskSource;
 use crate::task_source::user_interaction::UserInteractionTaskSource;
 use crate::task_source::websocket::WebsocketTaskSource;
+use crate::task_source::TaskSourceName;
 use crate::timers::{IsInterval, TimerCallback};
 use crate::webdriver_handlers::jsval_to_webdriver;
 use cssparser::{Parser, ParserInput};
 use devtools_traits::{ScriptToDevtoolsControlMsg, TimelineMarker, TimelineMarkerType};
 use dom_struct::dom_struct;
 use embedder_traits::EmbedderMsg;
-use euclid::{Point2D, Vector2D, Rect, Size2D, TypedPoint2D, TypedScale, TypedSize2D};
+use euclid::{Point2D, Rect, Size2D, TypedPoint2D, TypedScale, TypedSize2D, Vector2D};
 use ipc_channel::ipc::IpcSender;
 use ipc_channel::router::ROUTER;
 use js::jsapi::JSAutoCompartment;
@@ -84,45 +90,47 @@ use js::jsapi::JSPROP_ENUMERATE;
 use js::jsapi::JS_GC;
 use js::jsval::JSVal;
 use js::jsval::UndefinedValue;
-use js::rust::HandleValue;
 use js::rust::wrappers::JS_DefineProperty;
+use js::rust::HandleValue;
 use libc;
 use msg::constellation_msg::PipelineId;
-use net_traits::{ResourceThreads, ReferrerPolicy};
 use net_traits::image_cache::{ImageCache, ImageResponder, ImageResponse};
 use net_traits::image_cache::{PendingImageId, PendingImageResponse};
 use net_traits::storage_thread::StorageType;
+use net_traits::{ReferrerPolicy, ResourceThreads};
 use num_traits::ToPrimitive;
 use profile_traits::ipc as ProfiledIpc;
 use profile_traits::mem::ProfilerChan as MemProfilerChan;
 use profile_traits::time::ProfilerChan as TimeProfilerChan;
-use script_layout_interface::{TrustedNodeAddress, PendingImageState};
-use script_layout_interface::message::{Msg, Reflow, QueryMsg, ReflowGoal, ScriptReflow};
+use script_layout_interface::message::{Msg, QueryMsg, Reflow, ReflowGoal, ScriptReflow};
 use script_layout_interface::reporter::CSSErrorReporter;
 use script_layout_interface::rpc::{ContentBoxResponse, ContentBoxesResponse, LayoutRPC};
-use script_layout_interface::rpc::{NodeScrollIdResponse, ResolvedStyleResponse, TextIndexResponse};
+use script_layout_interface::rpc::{
+    NodeScrollIdResponse, ResolvedStyleResponse, TextIndexResponse,
+};
+use script_layout_interface::{PendingImageState, TrustedNodeAddress};
+use script_traits::webdriver_msg::{WebDriverJSError, WebDriverJSResult};
 use script_traits::{ConstellationControlMsg, DocumentState, LoadData};
-use script_traits::{ScriptToConstellationChan, ScriptMsg, ScrollState, TimerEvent, TimerEventId};
+use script_traits::{ScriptMsg, ScriptToConstellationChan, ScrollState, TimerEvent, TimerEventId};
 use script_traits::{TimerSchedulerMsg, UntrustedNodeAddress, WindowSizeData, WindowSizeType};
-use script_traits::webdriver_msg::{WebDriverJSError, WebDriverJSResult};
 use selectors::attr::CaseSensitivity;
 use servo_arc;
 use servo_channel::{channel, Sender};
 use servo_config::opts;
 use servo_geometry::{f32_rect_to_au_rect, MaxRect};
-use servo_url::{Host, MutableOrigin, ImmutableOrigin, ServoUrl};
+use servo_url::{Host, ImmutableOrigin, MutableOrigin, ServoUrl};
 use std::borrow::ToOwned;
 use std::cell::Cell;
-use std::collections::{HashMap, HashSet};
 use std::collections::hash_map::Entry;
+use std::collections::{HashMap, HashSet};
 use std::default::Default;
 use std::env;
 use std::fs;
-use std::io::{Write, stderr, stdout};
+use std::io::{stderr, stdout, Write};
 use std::mem;
 use std::rc::Rc;
-use std::sync::{Arc, Mutex};
 use std::sync::atomic::{AtomicBool, Ordering};
+use std::sync::{Arc, Mutex};
 use style::error_reporting::ParseErrorReporter;
 use style::media_queries;
 use style::parser::ParserContext as CssParserContext;
@@ -133,7 +141,9 @@ use style::stylesheets::CssRuleType;
 use style_traits::{CSSPixel, DevicePixel, ParsingMode};
 use time;
 use url::Position;
-use webrender_api::{DeviceIntPoint, DeviceUintSize, DocumentId, ExternalScrollId, RenderApiSender};
+use webrender_api::{
+    DeviceIntPoint, DeviceUintSize, DocumentId, ExternalScrollId, RenderApiSender,
+};
 use webvr_traits::WebVRMsg;
 
 /// Current state of the window object
diff --git a/components/script/dom/windowproxy.rs b/components/script/dom/windowproxy.rs
index bc0fe4a9e09..4de2eed66f4 100644
--- a/components/script/dom/windowproxy.rs
+++ b/components/script/dom/windowproxy.rs
@@ -3,15 +3,15 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use crate::dom::bindings::cell::DomRefCell;
-use crate::dom::bindings::conversions::{ToJSValConvertible, root_from_handleobject};
-use crate::dom::bindings::error::{Error, throw_dom_exception};
+use crate::dom::bindings::conversions::{root_from_handleobject, ToJSValConvertible};
+use crate::dom::bindings::error::{throw_dom_exception, Error};
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::proxyhandler::{fill_property_descriptor, get_property_descriptor};
 use crate::dom::bindings::reflector::{DomObject, Reflector};
 use crate::dom::bindings::root::{Dom, DomRoot, RootedReference};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::bindings::trace::JSTraceable;
-use crate::dom::bindings::utils::{WindowProxyHandler, get_array_index_from_id, AsVoidPtr};
+use crate::dom::bindings::utils::{get_array_index_from_id, AsVoidPtr, WindowProxyHandler};
 use crate::dom::dissimilaroriginwindow::DissimilarOriginWindow;
 use crate::dom::document::Document;
 use crate::dom::element::Element;
@@ -21,15 +21,8 @@ use crate::script_thread::ScriptThread;
 use dom_struct::dom_struct;
 use embedder_traits::EmbedderMsg;
 use ipc_channel::ipc;
-use js::JSCLASS_IS_GLOBAL;
 use js::glue::{CreateWrapperProxyHandler, ProxyTraps};
-use js::glue::{GetProxyPrivate, SetProxyReservedSlot, GetProxyReservedSlot};
-use js::jsapi::{JSAutoCompartment, JSContext, JSErrNum, JSFreeOp, JSObject};
-use js::jsapi::{JSPROP_ENUMERATE, JSPROP_READONLY, JSTracer, JS_DefinePropertyById};
-use js::jsapi::{JS_ForwardGetPropertyTo, JS_ForwardSetPropertyTo};
-use js::jsapi::{JS_HasPropertyById, JS_HasOwnPropertyById};
-use js::jsapi::{JS_IsExceptionPending, JS_GetOwnPropertyDescriptorById};
-use js::jsapi::{ObjectOpResult, PropertyDescriptor};
+use js::glue::{GetProxyPrivate, GetProxyReservedSlot, SetProxyReservedSlot};
 use js::jsapi::Handle as RawHandle;
 use js::jsapi::HandleId as RawHandleId;
 use js::jsapi::HandleObject as RawHandleObject;
@@ -37,10 +30,17 @@ use js::jsapi::HandleValue as RawHandleValue;
 use js::jsapi::MutableHandle as RawMutableHandle;
 use js::jsapi::MutableHandleObject as RawMutableHandleObject;
 use js::jsapi::MutableHandleValue as RawMutableHandleValue;
-use js::jsval::{JSVal, NullValue, UndefinedValue, PrivateValue};
-use js::rust::{Handle, MutableHandle};
+use js::jsapi::{JSAutoCompartment, JSContext, JSErrNum, JSFreeOp, JSObject};
+use js::jsapi::{JSTracer, JS_DefinePropertyById, JSPROP_ENUMERATE, JSPROP_READONLY};
+use js::jsapi::{JS_ForwardGetPropertyTo, JS_ForwardSetPropertyTo};
+use js::jsapi::{JS_GetOwnPropertyDescriptorById, JS_IsExceptionPending};
+use js::jsapi::{JS_HasOwnPropertyById, JS_HasPropertyById};
+use js::jsapi::{ObjectOpResult, PropertyDescriptor};
+use js::jsval::{JSVal, NullValue, PrivateValue, UndefinedValue};
 use js::rust::get_object_class;
-use js::rust::wrappers::{NewWindowProxy, SetWindowProxy, JS_TransplantObject};
+use js::rust::wrappers::{JS_TransplantObject, NewWindowProxy, SetWindowProxy};
+use js::rust::{Handle, MutableHandle};
+use js::JSCLASS_IS_GLOBAL;
 use msg::constellation_msg::BrowsingContextId;
 use msg::constellation_msg::PipelineId;
 use msg::constellation_msg::TopLevelBrowsingContextId;
diff --git a/components/script/dom/worker.rs b/components/script/dom/worker.rs
index 3ad9525466c..957d630ece1 100644
--- a/components/script/dom/worker.rs
+++ b/components/script/dom/worker.rs
@@ -9,11 +9,13 @@ use crate::dom::bindings::codegen::Bindings::WorkerBinding::WorkerMethods;
 use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::refcounted::Trusted;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::bindings::structuredclone::StructuredCloneData;
-use crate::dom::dedicatedworkerglobalscope::{DedicatedWorkerGlobalScope, DedicatedWorkerScriptMsg};
+use crate::dom::dedicatedworkerglobalscope::{
+    DedicatedWorkerGlobalScope, DedicatedWorkerScriptMsg,
+};
 use crate::dom::eventtarget::EventTarget;
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::messageevent::MessageEvent;
@@ -28,8 +30,8 @@ use js::rust::HandleValue;
 use script_traits::WorkerScriptLoadOrigin;
 use servo_channel::{channel, Sender};
 use std::cell::Cell;
-use std::sync::Arc;
 use std::sync::atomic::{AtomicBool, Ordering};
+use std::sync::Arc;
 
 pub type TrustedWorkerAddress = Trusted<Worker>;
 
diff --git a/components/script/dom/workerglobalscope.rs b/components/script/dom/workerglobalscope.rs
index e7c141f1500..a9b1fc4aca4 100644
--- a/components/script/dom/workerglobalscope.rs
+++ b/components/script/dom/workerglobalscope.rs
@@ -6,7 +6,7 @@ use crate::dom::bindings::codegen::Bindings::FunctionBinding::Function;
 use crate::dom::bindings::codegen::Bindings::RequestBinding::RequestInit;
 use crate::dom::bindings::codegen::Bindings::WorkerGlobalScopeBinding::WorkerGlobalScopeMethods;
 use crate::dom::bindings::codegen::UnionTypes::RequestOrUSVString;
-use crate::dom::bindings::error::{Error, ErrorResult, Fallible, report_pending_exception};
+use crate::dom::bindings::error::{report_pending_exception, Error, ErrorResult, Fallible};
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::reflector::DomObject;
 use crate::dom::bindings::root::{DomRoot, MutNullableDom};
@@ -23,7 +23,7 @@ use crate::dom::window::{base64_atob, base64_btoa};
 use crate::dom::workerlocation::WorkerLocation;
 use crate::dom::workernavigator::WorkerNavigator;
 use crate::fetch;
-use crate::script_runtime::{CommonScriptMsg, ScriptChan, ScriptPort, get_reports, Runtime};
+use crate::script_runtime::{get_reports, CommonScriptMsg, Runtime, ScriptChan, ScriptPort};
 use crate::task::TaskCanceller;
 use crate::task_source::dom_manipulation::DOMManipulationTaskSource;
 use crate::task_source::file_reading::FileReadingTaskSource;
@@ -40,16 +40,16 @@ use js::jsval::UndefinedValue;
 use js::panic::maybe_resume_unwind;
 use js::rust::HandleValue;
 use msg::constellation_msg::PipelineId;
-use net_traits::{IpcSend, load_whole_resource};
 use net_traits::request::{CredentialsMode, Destination, RequestInit as NetRequestInit};
-use script_traits::{TimerEvent, TimerEventId};
+use net_traits::{load_whole_resource, IpcSend};
 use script_traits::WorkerGlobalScopeInit;
+use script_traits::{TimerEvent, TimerEventId};
 use servo_channel::Receiver;
 use servo_url::{MutableOrigin, ServoUrl};
 use std::default::Default;
 use std::rc::Rc;
-use std::sync::Arc;
 use std::sync::atomic::{AtomicBool, Ordering};
+use std::sync::Arc;
 use time::precise_time_ns;
 
 pub fn prepare_workerscope_init(
diff --git a/components/script/dom/workerlocation.rs b/components/script/dom/workerlocation.rs
index 5ff7c05961c..e48fe96d466 100644
--- a/components/script/dom/workerlocation.rs
+++ b/components/script/dom/workerlocation.rs
@@ -4,7 +4,7 @@
 
 use crate::dom::bindings::codegen::Bindings::WorkerLocationBinding;
 use crate::dom::bindings::codegen::Bindings::WorkerLocationBinding::WorkerLocationMethods;
-use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::{DOMString, USVString};
 use crate::dom::urlhelper::UrlHelper;
diff --git a/components/script/dom/workernavigator.rs b/components/script/dom/workernavigator.rs
index 6c1f5526a15..f98dc3e7b13 100644
--- a/components/script/dom/workernavigator.rs
+++ b/components/script/dom/workernavigator.rs
@@ -4,7 +4,7 @@
 
 use crate::dom::bindings::codegen::Bindings::WorkerNavigatorBinding;
 use crate::dom::bindings::codegen::Bindings::WorkerNavigatorBinding::WorkerNavigatorMethods;
-use crate::dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{DomRoot, MutNullableDom};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::navigatorinfo;
diff --git a/components/script/dom/worklet.rs b/components/script/dom/worklet.rs
index 07c21fc5999..5a88fa41843 100644
--- a/components/script/dom/worklet.rs
+++ b/components/script/dom/worklet.rs
@@ -18,8 +18,8 @@ use crate::dom::bindings::codegen::Bindings::WorkletBinding::Wrap;
 use crate::dom::bindings::error::Error;
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::refcounted::TrustedPromise;
-use crate::dom::bindings::reflector::Reflector;
 use crate::dom::bindings::reflector::reflect_dom_object;
+use crate::dom::bindings::reflector::Reflector;
 use crate::dom::bindings::root::{Dom, DomRoot, RootCollection, ThreadLocalStackRoots};
 use crate::dom::bindings::str::USVString;
 use crate::dom::bindings::trace::JSTraceable;
@@ -32,39 +32,39 @@ use crate::dom::workletglobalscope::WorkletGlobalScope;
 use crate::dom::workletglobalscope::WorkletGlobalScopeInit;
 use crate::dom::workletglobalscope::WorkletGlobalScopeType;
 use crate::dom::workletglobalscope::WorkletTask;
+use crate::script_runtime::new_rt_and_cx;
 use crate::script_runtime::CommonScriptMsg;
 use crate::script_runtime::Runtime;
 use crate::script_runtime::ScriptThreadEventCategory;
-use crate::script_runtime::new_rt_and_cx;
 use crate::script_thread::{MainThreadScriptMsg, ScriptThread};
 use crate::task::TaskBox;
 use crate::task_source::TaskSourceName;
 use dom_struct::dom_struct;
 use js::jsapi::JSGCParamKey;
 use js::jsapi::JSTracer;
-use js::jsapi::JS_GC;
 use js::jsapi::JS_GetGCParameter;
+use js::jsapi::JS_GC;
 use msg::constellation_msg::PipelineId;
-use net_traits::IpcSend;
 use net_traits::load_whole_resource;
 use net_traits::request::Destination;
 use net_traits::request::RequestInit;
 use net_traits::request::RequestMode;
-use servo_channel::{channel, Sender, Receiver};
+use net_traits::IpcSend;
+use servo_channel::{channel, Receiver, Sender};
 use servo_rand;
 use servo_url::ImmutableOrigin;
 use servo_url::ServoUrl;
 use std::cmp::max;
-use std::collections::HashMap;
 use std::collections::hash_map;
+use std::collections::HashMap;
 use std::rc::Rc;
-use std::sync::Arc;
 use std::sync::atomic::AtomicIsize;
 use std::sync::atomic::Ordering;
+use std::sync::Arc;
 use std::thread;
 use style::thread_state::{self, ThreadState};
-use swapper::Swapper;
 use swapper::swapper;
+use swapper::Swapper;
 use uuid::Uuid;
 
 // Magic numbers
diff --git a/components/script/dom/workletglobalscope.rs b/components/script/dom/workletglobalscope.rs
index eab249abc12..9e672723c54 100644
--- a/components/script/dom/workletglobalscope.rs
+++ b/components/script/dom/workletglobalscope.rs
@@ -19,8 +19,8 @@ use js::jsapi::JSContext;
 use js::jsval::UndefinedValue;
 use js::rust::Runtime;
 use msg::constellation_msg::PipelineId;
-use net_traits::ResourceThreads;
 use net_traits::image_cache::ImageCache;
+use net_traits::ResourceThreads;
 use profile_traits::mem;
 use profile_traits::time;
 use script_traits::{Painter, ScriptMsg};
diff --git a/components/script/dom/xmlhttprequest.rs b/components/script/dom/xmlhttprequest.rs
index 038a7a018bd..bfb1916211d 100644
--- a/components/script/dom/xmlhttprequest.rs
+++ b/components/script/dom/xmlhttprequest.rs
@@ -15,12 +15,12 @@ use crate::dom::bindings::conversions::ToJSValConvertible;
 use crate::dom::bindings::error::{Error, ErrorResult, Fallible};
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::refcounted::Trusted;
-use crate::dom::bindings::reflector::{DomObject, reflect_dom_object};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::{Dom, DomRoot, MutNullableDom};
-use crate::dom::bindings::str::{ByteString, DOMString, USVString, is_token};
+use crate::dom::bindings::str::{is_token, ByteString, DOMString, USVString};
 use crate::dom::blob::{Blob, BlobImpl};
-use crate::dom::document::{Document, HasBrowsingContext, IsHTMLDocument};
 use crate::dom::document::DocumentSource;
+use crate::dom::document::{Document, HasBrowsingContext, IsHTMLDocument};
 use crate::dom::event::{Event, EventBubbles, EventCancelable};
 use crate::dom::eventtarget::EventTarget;
 use crate::dom::formdata::FormData;
@@ -37,8 +37,8 @@ use crate::dom::xmlhttprequesteventtarget::XMLHttpRequestEventTarget;
 use crate::dom::xmlhttprequestupload::XMLHttpRequestUpload;
 use crate::fetch::FetchCanceller;
 use crate::network_listener::{NetworkListener, PreInvoke};
-use crate::task_source::TaskSourceName;
 use crate::task_source::networking::NetworkingTaskSource;
+use crate::task_source::TaskSourceName;
 use crate::timers::{OneshotTimerCallback, OneshotTimerHandle};
 use dom_struct::dom_struct;
 use encoding_rs::{Encoding, UTF_8};
@@ -52,17 +52,17 @@ use hyper::Method;
 use hyper_serde::Serde;
 use ipc_channel::ipc;
 use ipc_channel::router::ROUTER;
-use js::jsapi::{Heap, JSContext, JSObject};
 use js::jsapi::JS_ClearPendingException;
+use js::jsapi::{Heap, JSContext, JSObject};
 use js::jsval::{JSVal, NullValue, UndefinedValue};
 use js::rust::wrappers::JS_ParseJSON;
 use js::typedarray::{ArrayBuffer, CreateWith};
 use mime::{self, Mime, Name};
-use net_traits::{FetchChannels, FetchMetadata, FilteredMetadata};
-use net_traits::{FetchResponseListener, NetworkError, ReferrerPolicy};
-use net_traits::CoreResourceMsg::Fetch;
 use net_traits::request::{CredentialsMode, Destination, RequestInit, RequestMode};
 use net_traits::trim_http_whitespace;
+use net_traits::CoreResourceMsg::Fetch;
+use net_traits::{FetchChannels, FetchMetadata, FilteredMetadata};
+use net_traits::{FetchResponseListener, NetworkError, ReferrerPolicy};
 use script_traits::DocumentActivity;
 use servo_atoms::Atom;
 use servo_url::ServoUrl;
diff --git a/components/script/fetch.rs b/components/script/fetch.rs
index 319a965dcab..01bc19945a8 100644
--- a/components/script/fetch.rs
+++ b/components/script/fetch.rs
@@ -23,11 +23,11 @@ use crate::task_source::TaskSourceName;
 use ipc_channel::ipc;
 use ipc_channel::router::ROUTER;
 use js::jsapi::JSAutoCompartment;
-use net_traits::{FetchChannels, FetchResponseListener, NetworkError};
-use net_traits::{FilteredMetadata, FetchMetadata, Metadata};
-use net_traits::CoreResourceMsg::Fetch as NetTraitsFetch;
-use net_traits::request::{Request as NetTraitsRequest, ServiceWorkersMode};
 use net_traits::request::RequestInit as NetTraitsRequestInit;
+use net_traits::request::{Request as NetTraitsRequest, ServiceWorkersMode};
+use net_traits::CoreResourceMsg::Fetch as NetTraitsFetch;
+use net_traits::{FetchChannels, FetchResponseListener, NetworkError};
+use net_traits::{FetchMetadata, FilteredMetadata, Metadata};
 use servo_url::ServoUrl;
 use std::mem;
 use std::rc::Rc;
diff --git a/components/script/layout_image.rs b/components/script/layout_image.rs
index 5ede7398506..99240074eaa 100644
--- a/components/script/layout_image.rs
+++ b/components/script/layout_image.rs
@@ -8,14 +8,14 @@
 //! layout thread holds on to them during asynchronous operations.
 
 use crate::dom::bindings::reflector::DomObject;
-use crate::dom::node::{Node, document_from_node};
+use crate::dom::node::{document_from_node, Node};
 use crate::network_listener::{NetworkListener, PreInvoke};
 use crate::task_source::TaskSourceName;
 use ipc_channel::ipc;
 use ipc_channel::router::ROUTER;
-use net_traits::{FetchResponseMsg, FetchResponseListener, FetchMetadata, NetworkError};
 use net_traits::image_cache::{ImageCache, PendingImageId};
 use net_traits::request::{Destination, RequestInit as FetchRequestInit};
+use net_traits::{FetchMetadata, FetchResponseListener, FetchResponseMsg, NetworkError};
 use servo_url::ServoUrl;
 use std::sync::{Arc, Mutex};
 
diff --git a/components/script/network_listener.rs b/components/script/network_listener.rs
index 6a7512c0561..bf67d16071c 100644
--- a/components/script/network_listener.rs
+++ b/components/script/network_listener.rs
@@ -3,8 +3,8 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use crate::task::{TaskCanceller, TaskOnce};
-use crate::task_source::TaskSource;
 use crate::task_source::networking::NetworkingTaskSource;
+use crate::task_source::TaskSource;
 use net_traits::{Action, FetchResponseListener, FetchResponseMsg};
 use std::sync::{Arc, Mutex};
 
diff --git a/components/script/script_runtime.rs b/components/script/script_runtime.rs
index 2625bb4d3ce..8647c48d1ce 100644
--- a/components/script/script_runtime.rs
+++ b/components/script/script_runtime.rs
@@ -9,12 +9,12 @@ use crate::dom::bindings::codegen::Bindings::PromiseBinding::PromiseJobCallback;
 use crate::dom::bindings::conversions::get_dom_class;
 use crate::dom::bindings::conversions::private_from_object;
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::refcounted::{LiveDOMReferences, trace_refcounted_objects};
+use crate::dom::bindings::refcounted::{trace_refcounted_objects, LiveDOMReferences};
 use crate::dom::bindings::refcounted::{Trusted, TrustedPromise};
 use crate::dom::bindings::reflector::DomObject;
 use crate::dom::bindings::root::trace_roots;
 use crate::dom::bindings::settings_stack;
-use crate::dom::bindings::trace::{JSTraceable, trace_traceables};
+use crate::dom::bindings::trace::{trace_traceables, JSTraceable};
 use crate::dom::bindings::utils::DOM_CALLBACKS;
 use crate::dom::event::{Event, EventBubbles, EventCancelable, EventStatus};
 use crate::dom::eventtarget::EventTarget;
@@ -27,19 +27,21 @@ use crate::task::TaskBox;
 use crate::task_source::{TaskSource, TaskSourceName};
 use js::glue::CollectServoSizes;
 use js::glue::SetBuildId;
+use js::jsapi::ContextOptionsRef;
 use js::jsapi::{BuildIdCharVector, DisableIncrementalGC, GCDescription, GCProgress};
-use js::jsapi::{Heap, HandleObject};
+use js::jsapi::{HandleObject, Heap};
 use js::jsapi::{JSContext, JSTracer, SetDOMCallbacks, SetGCSliceCallback};
 use js::jsapi::{JSGCInvocationKind, JSGCStatus, JS_AddExtraGCRootsTracer, JS_SetGCCallback};
 use js::jsapi::{JSGCMode, JSGCParamKey, JS_SetGCParameter, JS_SetGlobalJitCompilerOption};
-use js::jsapi::{JSJitCompilerOption, JS_SetOffthreadIonCompilationEnabled, JS_SetParallelParsingEnabled};
+use js::jsapi::{
+    JSJitCompilerOption, JS_SetOffthreadIonCompilationEnabled, JS_SetParallelParsingEnabled,
+};
 use js::jsapi::{JSObject, PromiseRejectionHandlingState, SetPreserveWrapperCallback};
 use js::jsapi::{SetBuildIdOp, SetEnqueuePromiseJobCallback, SetPromiseRejectionTrackerCallback};
-use js::jsapi::ContextOptionsRef;
 use js::panic::wrap_panic;
+use js::rust::wrappers::{GetPromiseIsHandled, GetPromiseResult};
 use js::rust::Handle;
 use js::rust::Runtime as RustRuntime;
-use js::rust::wrappers::{GetPromiseIsHandled, GetPromiseResult};
 use malloc_size_of::MallocSizeOfOps;
 use msg::constellation_msg::PipelineId;
 use profile_traits::mem::{Report, ReportKind, ReportsChan};
@@ -47,14 +49,14 @@ use servo_config::opts;
 use servo_config::prefs::PREFS;
 use std::cell::Cell;
 use std::fmt;
-use std::io::{Write, stdout};
+use std::io::{stdout, Write};
 use std::ops::Deref;
 use std::os;
 use std::os::raw::c_void;
 use std::panic::AssertUnwindSafe;
 use std::ptr;
 use style::thread_state::{self, ThreadState};
-use time::{Tm, now};
+use time::{now, Tm};
 
 /// Common messages used to control the event loops in both the script and the worker
 pub enum CommonScriptMsg {
@@ -688,7 +690,7 @@ unsafe extern "C" fn servo_build_id(build_id: *mut BuildIdCharVector) -> bool {
 #[allow(unsafe_code)]
 #[cfg(feature = "debugmozjs")]
 unsafe fn set_gc_zeal_options(cx: *mut JSContext) {
-    use js::jsapi::{JS_DEFAULT_ZEAL_FREQ, JS_SetGCZeal};
+    use js::jsapi::{JS_SetGCZeal, JS_DEFAULT_ZEAL_FREQ};
 
     let level = match PREFS.get("js.mem.gc.zeal.level").as_i64() {
         Some(level @ 0...14) => level as u8,
diff --git a/components/script/script_thread.rs b/components/script/script_thread.rs
index 02832ba45ac..abd7ec4fa1b 100644
--- a/components/script/script_thread.rs
+++ b/components/script/script_thread.rs
@@ -24,11 +24,15 @@ use canvas_traits::webgl::WebGLPipeline;
 use crate::devtools;
 use crate::document_loader::DocumentLoader;
 use crate::dom::bindings::cell::DomRefCell;
-use crate::dom::bindings::codegen::Bindings::DocumentBinding::{DocumentMethods, DocumentReadyState};
+use crate::dom::bindings::codegen::Bindings::DocumentBinding::{
+    DocumentMethods, DocumentReadyState,
+};
 use crate::dom::bindings::codegen::Bindings::EventBinding::EventInit;
 use crate::dom::bindings::codegen::Bindings::TransitionEventBinding::TransitionEventInit;
 use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
-use crate::dom::bindings::conversions::{ConversionResult, FromJSValConvertible, StringificationBehavior};
+use crate::dom::bindings::conversions::{
+    ConversionResult, FromJSValConvertible, StringificationBehavior,
+};
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::num::Finite;
 use crate::dom::bindings::reflector::DomObject;
@@ -38,15 +42,19 @@ use crate::dom::bindings::str::DOMString;
 use crate::dom::bindings::structuredclone::StructuredCloneData;
 use crate::dom::bindings::trace::JSTraceable;
 use crate::dom::bindings::utils::WRAP_CALLBACKS;
-use crate::dom::customelementregistry::{CallbackReaction, CustomElementDefinition, CustomElementReactionStack};
-use crate::dom::document::{Document, DocumentSource, FocusType, HasBrowsingContext, IsHTMLDocument, TouchEventResult};
+use crate::dom::customelementregistry::{
+    CallbackReaction, CustomElementDefinition, CustomElementReactionStack,
+};
+use crate::dom::document::{
+    Document, DocumentSource, FocusType, HasBrowsingContext, IsHTMLDocument, TouchEventResult,
+};
 use crate::dom::element::Element;
 use crate::dom::event::{Event, EventBubbles, EventCancelable};
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::htmlanchorelement::HTMLAnchorElement;
 use crate::dom::htmliframeelement::{HTMLIFrameElement, NavigationType};
 use crate::dom::mutationobserver::MutationObserver;
-use crate::dom::node::{Node, NodeDamage, window_from_node, from_untrusted_node_address};
+use crate::dom::node::{from_untrusted_node_address, window_from_node, Node, NodeDamage};
 use crate::dom::performanceentry::PerformanceEntry;
 use crate::dom::performancepainttiming::PerformancePaintTiming;
 use crate::dom::serviceworker::TrustedServiceWorkerAddress;
@@ -60,12 +68,11 @@ use crate::dom::worker::TrustedWorkerAddress;
 use crate::dom::worklet::WorkletThreadPool;
 use crate::dom::workletglobalscope::WorkletGlobalScopeInit;
 use crate::fetch::FetchCanceller;
-use crate::microtask::{MicrotaskQueue, Microtask};
+use crate::microtask::{Microtask, MicrotaskQueue};
+use crate::script_runtime::{get_reports, new_rt_and_cx, Runtime, ScriptPort};
 use crate::script_runtime::{CommonScriptMsg, ScriptChan, ScriptThreadEventCategory};
-use crate::script_runtime::{ScriptPort, get_reports, new_rt_and_cx, Runtime};
 use crate::serviceworkerjob::{Job, JobQueue};
 use crate::task_queue::{QueuedTask, QueuedTaskConversion, TaskQueue};
-use crate::task_source::TaskSourceName;
 use crate::task_source::dom_manipulation::DOMManipulationTaskSource;
 use crate::task_source::file_reading::FileReadingTaskSource;
 use crate::task_source::history_traversal::HistoryTraversalTaskSource;
@@ -75,12 +82,13 @@ use crate::task_source::performance_timeline::PerformanceTimelineTaskSource;
 use crate::task_source::remote_event::RemoteEventTaskSource;
 use crate::task_source::user_interaction::UserInteractionTaskSource;
 use crate::task_source::websocket::WebsocketTaskSource;
+use crate::task_source::TaskSourceName;
 use crate::webdriver_handlers;
+use devtools_traits::CSSError;
 use devtools_traits::{DevtoolScriptControlMsg, DevtoolsPageInfo};
 use devtools_traits::{ScriptToDevtoolsControlMsg, WorkerId};
-use devtools_traits::CSSError;
 use embedder_traits::EmbedderMsg;
-use euclid::{Point2D, Vector2D, Rect};
+use euclid::{Point2D, Rect, Vector2D};
 use headers_core::HeaderMapExt;
 use headers_ext::LastModified;
 use headers_ext::ReferrerPolicy as ReferrerPolicyHeader;
@@ -90,31 +98,35 @@ use js::glue::GetWindowProxyClass;
 use js::jsapi::{JSAutoCompartment, JSContext, JS_SetWrapObjectCallbacks};
 use js::jsapi::{JSTracer, SetWindowProxyClass};
 use js::jsval::UndefinedValue;
-use metrics::{MAX_TASK_NS, PaintTimeMetrics};
+use metrics::{PaintTimeMetrics, MAX_TASK_NS};
 use mime::{self, Mime};
 use msg::constellation_msg::{BrowsingContextId, HistoryStateId, PipelineId};
 use msg::constellation_msg::{PipelineNamespace, TopLevelBrowsingContextId};
-use net_traits::{FetchMetadata, FetchResponseListener, FetchResponseMsg};
-use net_traits::{Metadata, NetworkError, ReferrerPolicy, ResourceThreads};
 use net_traits::image_cache::{ImageCache, PendingImageResponse};
 use net_traits::request::{CredentialsMode, Destination, RedirectMode, RequestInit};
 use net_traits::storage_thread::StorageType;
+use net_traits::{FetchMetadata, FetchResponseListener, FetchResponseMsg};
+use net_traits::{Metadata, NetworkError, ReferrerPolicy, ResourceThreads};
 use profile_traits::mem::{self as profile_mem, OpaqueSender, ReportsChan};
-use profile_traits::time::{self as profile_time, ProfilerCategory, profile};
+use profile_traits::time::{self as profile_time, profile, ProfilerCategory};
 use script_layout_interface::message::{self, Msg, NewLayoutThreadInfo, ReflowGoal};
+use script_traits::webdriver_msg::WebDriverScriptCommand;
+use script_traits::CompositorEvent::{
+    KeyboardEvent, MouseButtonEvent, MouseMoveEvent, ResizeEvent, TouchEvent,
+};
 use script_traits::{CompositorEvent, ConstellationControlMsg};
 use script_traits::{DiscardBrowsingContext, DocumentActivity, EventResult};
 use script_traits::{InitialScriptState, JsEvalResult, LayoutMsg, LoadData};
 use script_traits::{MouseButton, MouseEventType, NewLayoutInfo};
-use script_traits::{ProgressiveWebMetricType, Painter, ScriptMsg, ScriptThreadFactory};
+use script_traits::{Painter, ProgressiveWebMetricType, ScriptMsg, ScriptThreadFactory};
 use script_traits::{ScriptToConstellationChan, TimerEvent, TimerSchedulerMsg};
 use script_traits::{TimerSource, TouchEventType, TouchId, UntrustedNodeAddress};
 use script_traits::{UpdatePipelineIdReason, WindowSizeData, WindowSizeType};
-use script_traits::CompositorEvent::{KeyboardEvent, MouseButtonEvent, MouseMoveEvent, ResizeEvent, TouchEvent};
-use script_traits::webdriver_msg::WebDriverScriptCommand;
 use servo_atoms::Atom;
 use servo_channel::{channel, Receiver, Sender};
-use servo_channel::{route_ipc_receiver_to_new_servo_receiver, route_ipc_receiver_to_new_servo_sender};
+use servo_channel::{
+    route_ipc_receiver_to_new_servo_receiver, route_ipc_receiver_to_new_servo_sender,
+};
 use servo_config::opts;
 use servo_url::{ImmutableOrigin, MutableOrigin, ServoUrl};
 use std::cell::Cell;
@@ -131,8 +143,8 @@ use std::thread;
 use std::time::SystemTime;
 use style::thread_state::{self, ThreadState};
 use time::{at_utc, get_time, precise_time_ns, Timespec};
-use url::Position;
 use url::percent_encoding::percent_decode;
+use url::Position;
 use webrender_api::{DocumentId, RenderApiSender};
 use webvr_traits::{WebVREvent, WebVRMsg};
 
diff --git a/components/script/serviceworker_manager.rs b/components/script/serviceworker_manager.rs
index 9aee99f2bae..198c230adf9 100644
--- a/components/script/serviceworker_manager.rs
+++ b/components/script/serviceworker_manager.rs
@@ -13,9 +13,9 @@ use crate::dom::serviceworkerglobalscope::{ServiceWorkerGlobalScope, ServiceWork
 use crate::dom::serviceworkerregistration::longest_prefix_match;
 use devtools_traits::{DevtoolsPageInfo, ScriptToDevtoolsControlMsg};
 use ipc_channel::ipc::{self, IpcSender};
-use net_traits::{CustomResponseMediator, CoreResourceMsg};
-use script_traits::{ServiceWorkerMsg, ScopeThings, SWManagerMsg, SWManagerSenders, DOMMessage};
-use servo_channel::{channel, route_ipc_receiver_to_new_servo_receiver, Sender, Receiver};
+use net_traits::{CoreResourceMsg, CustomResponseMediator};
+use script_traits::{DOMMessage, SWManagerMsg, SWManagerSenders, ScopeThings, ServiceWorkerMsg};
+use servo_channel::{channel, route_ipc_receiver_to_new_servo_receiver, Receiver, Sender};
 use servo_config::prefs::PREFS;
 use servo_url::ServoUrl;
 use std::collections::HashMap;
diff --git a/components/script/serviceworkerjob.rs b/components/script/serviceworkerjob.rs
index 95193ecebf5..4b95b8933d8 100644
--- a/components/script/serviceworkerjob.rs
+++ b/components/script/serviceworkerjob.rs
@@ -17,8 +17,8 @@ use crate::dom::promise::Promise;
 use crate::dom::serviceworkerregistration::ServiceWorkerRegistration;
 use crate::dom::urlhelper::UrlHelper;
 use crate::script_thread::ScriptThread;
-use crate::task_source::TaskSource;
 use crate::task_source::dom_manipulation::DOMManipulationTaskSource;
+use crate::task_source::TaskSource;
 use servo_url::ServoUrl;
 use std::cmp::PartialEq;
 use std::collections::HashMap;
diff --git a/components/script/stylesheet_loader.rs b/components/script/stylesheet_loader.rs
index 17bf780cf32..29144d48836 100644
--- a/components/script/stylesheet_loader.rs
+++ b/components/script/stylesheet_loader.rs
@@ -10,7 +10,7 @@ use crate::dom::document::Document;
 use crate::dom::element::Element;
 use crate::dom::eventtarget::EventTarget;
 use crate::dom::htmlelement::HTMLElement;
-use crate::dom::htmllinkelement::{RequestGenerationId, HTMLLinkElement};
+use crate::dom::htmllinkelement::{HTMLLinkElement, RequestGenerationId};
 use crate::dom::node::{document_from_node, window_from_node};
 use crate::network_listener::{NetworkListener, PreInvoke};
 use crate::task_source::TaskSourceName;
@@ -19,20 +19,24 @@ use encoding_rs::UTF_8;
 use ipc_channel::ipc;
 use ipc_channel::router::ROUTER;
 use mime::{self, Mime};
-use net_traits::{FetchResponseListener, FetchMetadata, FilteredMetadata, Metadata, NetworkError, ReferrerPolicy};
 use net_traits::request::{CorsSettings, CredentialsMode, Destination, RequestInit, RequestMode};
+use net_traits::{
+    FetchMetadata, FetchResponseListener, FilteredMetadata, Metadata, NetworkError, ReferrerPolicy,
+};
 use parking_lot::RwLock;
 use servo_arc::Arc;
 use servo_url::ServoUrl;
 use std::mem;
-use std::sync::Mutex;
 use std::sync::atomic::AtomicBool;
+use std::sync::Mutex;
 use style::media_queries::MediaList;
 use style::parser::ParserContext;
 use style::shared_lock::{Locked, SharedRwLock};
-use style::stylesheets::{CssRules, ImportRule, Namespaces, Stylesheet, StylesheetContents, Origin};
-use style::stylesheets::StylesheetLoader as StyleStylesheetLoader;
 use style::stylesheets::import_rule::ImportSheet;
+use style::stylesheets::StylesheetLoader as StyleStylesheetLoader;
+use style::stylesheets::{
+    CssRules, ImportRule, Namespaces, Origin, Stylesheet, StylesheetContents,
+};
 use style::values::CssUrl;
 
 pub trait StylesheetOwner {
diff --git a/components/script/task.rs b/components/script/task.rs
index e7461ee4685..622da35567d 100644
--- a/components/script/task.rs
+++ b/components/script/task.rs
@@ -5,8 +5,8 @@
 //! Machinery for [tasks](https://html.spec.whatwg.org/multipage/#concept-task).
 
 use std::fmt;
-use std::sync::Arc;
 use std::sync::atomic::{AtomicBool, Ordering};
+use std::sync::Arc;
 
 macro_rules! task {
     ($name:ident: move || $body:tt) => {{
diff --git a/components/script/task_queue.rs b/components/script/task_queue.rs
index 0b9098c6083..1160da51c96 100644
--- a/components/script/task_queue.rs
+++ b/components/script/task_queue.rs
@@ -10,7 +10,7 @@ use crate::script_runtime::ScriptThreadEventCategory;
 use crate::task::TaskBox;
 use crate::task_source::TaskSourceName;
 use msg::constellation_msg::PipelineId;
-use servo_channel::{Receiver, Sender, base_channel};
+use servo_channel::{base_channel, Receiver, Sender};
 use std::cell::Cell;
 use std::collections::{HashMap, VecDeque};
 use std::default::Default;
diff --git a/components/script/task_source/file_reading.rs b/components/script/task_source/file_reading.rs
index 129e4f35315..3c5b0bbcb69 100644
--- a/components/script/task_source/file_reading.rs
+++ b/components/script/task_source/file_reading.rs
@@ -3,8 +3,8 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use crate::dom::domexception::DOMErrorName;
-use crate::dom::filereader::{FileReader, TrustedFileReader, GenerationId, ReadMetaData};
-use crate::script_runtime::{CommonScriptMsg, ScriptThreadEventCategory, ScriptChan};
+use crate::dom::filereader::{FileReader, GenerationId, ReadMetaData, TrustedFileReader};
+use crate::script_runtime::{CommonScriptMsg, ScriptChan, ScriptThreadEventCategory};
 use crate::task::{TaskCanceller, TaskOnce};
 use crate::task_source::{TaskSource, TaskSourceName};
 use msg::constellation_msg::PipelineId;
diff --git a/components/script/task_source/history_traversal.rs b/components/script/task_source/history_traversal.rs
index 97c099fd3b2..0bc5841b73c 100644
--- a/components/script/task_source/history_traversal.rs
+++ b/components/script/task_source/history_traversal.rs
@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::script_runtime::{ScriptChan, CommonScriptMsg};
+use crate::script_runtime::{CommonScriptMsg, ScriptChan};
 use crate::script_thread::MainThreadScriptMsg;
 use servo_channel::Sender;
 
diff --git a/components/script/test.rs b/components/script/test.rs
index 7b87cb71f8c..22fa3b8af2b 100644
--- a/components/script/test.rs
+++ b/components/script/test.rs
@@ -7,9 +7,9 @@ pub use crate::dom::headers::normalize_value;
 
 // For compile-fail tests only.
 pub use crate::dom::bindings::cell::DomRefCell;
+pub use crate::dom::bindings::refcounted::TrustedPromise;
 pub use crate::dom::bindings::root::Dom;
 pub use crate::dom::node::Node;
-pub use crate::dom::bindings::refcounted::TrustedPromise;
 
 pub mod area {
     pub use crate::dom::htmlareaelement::{Area, Shape};
@@ -60,7 +60,7 @@ pub mod size_of {
 }
 
 pub mod srcset {
-    pub use crate::dom::htmlimageelement::{parse_a_srcset_attribute, ImageSource, Descriptor};
+    pub use crate::dom::htmlimageelement::{parse_a_srcset_attribute, Descriptor, ImageSource};
 }
 
 pub mod timeranges {
diff --git a/components/script/timers.rs b/components/script/timers.rs
index c2affe1e740..fe533d12100 100644
--- a/components/script/timers.rs
+++ b/components/script/timers.rs
@@ -17,7 +17,7 @@ use ipc_channel::ipc::IpcSender;
 use js::jsapi::Heap;
 use js::jsval::{JSVal, UndefinedValue};
 use js::rust::HandleValue;
-use script_traits::{MsDuration, precise_time_ms};
+use script_traits::{precise_time_ms, MsDuration};
 use script_traits::{TimerEvent, TimerEventId, TimerEventRequest};
 use script_traits::{TimerSchedulerMsg, TimerSource};
 use servo_config::prefs::PREFS;
diff --git a/components/script/webdriver_handlers.rs b/components/script/webdriver_handlers.rs
index 30291e62be7..30f1f12c6b5 100644
--- a/components/script/webdriver_handlers.rs
+++ b/components/script/webdriver_handlers.rs
@@ -11,7 +11,9 @@ use crate::dom::bindings::codegen::Bindings::HTMLInputElementBinding::HTMLInputE
 use crate::dom::bindings::codegen::Bindings::HTMLOptionElementBinding::HTMLOptionElementMethods;
 use crate::dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
 use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
-use crate::dom::bindings::conversions::{ConversionResult, FromJSValConvertible, StringificationBehavior};
+use crate::dom::bindings::conversions::{
+    ConversionResult, FromJSValConvertible, StringificationBehavior,
+};
 use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
@@ -21,7 +23,7 @@ use crate::dom::htmlelement::HTMLElement;
 use crate::dom::htmliframeelement::HTMLIFrameElement;
 use crate::dom::htmlinputelement::HTMLInputElement;
 use crate::dom::htmloptionelement::HTMLOptionElement;
-use crate::dom::node::{Node, window_from_node};
+use crate::dom::node::{window_from_node, Node};
 use crate::script_thread::Documents;
 use euclid::{Point2D, Rect, Size2D};
 use hyper_serde::Serde;
@@ -31,11 +33,13 @@ use js::jsval::UndefinedValue;
 use js::rust::HandleValue;
 use msg::constellation_msg::BrowsingContextId;
 use msg::constellation_msg::PipelineId;
-use net_traits::CookieSource::{HTTP, NonHTTP};
+use net_traits::CookieSource::{NonHTTP, HTTP};
 use net_traits::CoreResourceMsg::{GetCookiesDataForUrl, SetCookieForUrl};
 use net_traits::IpcSend;
-use script_traits::webdriver_msg::{WebDriverFrameId, WebDriverJSError, WebDriverJSResult, WebDriverJSValue};
 use script_traits::webdriver_msg::WebDriverCookieError;
+use script_traits::webdriver_msg::{
+    WebDriverFrameId, WebDriverJSError, WebDriverJSResult, WebDriverJSValue,
+};
 use servo_url::ServoUrl;
 
 fn find_node_by_unique_id(
diff --git a/components/script_layout_interface/lib.rs b/components/script_layout_interface/lib.rs
index bd48b2b7c51..58695a27750 100644
--- a/components/script_layout_interface/lib.rs
+++ b/components/script_layout_interface/lib.rs
@@ -44,7 +44,7 @@ pub mod rpc;
 pub mod wrapper_traits;
 
 use atomic_refcell::AtomicRefCell;
-use canvas_traits::canvas::{CanvasMsg, CanvasId};
+use canvas_traits::canvas::{CanvasId, CanvasMsg};
 use ipc_channel::ipc::IpcSender;
 use libc::c_void;
 use net_traits::image_cache::PendingImageId;
diff --git a/components/script_layout_interface/message.rs b/components/script_layout_interface/message.rs
index 326c6b04b75..01edca28a77 100644
--- a/components/script_layout_interface/message.rs
+++ b/components/script_layout_interface/message.rs
@@ -3,8 +3,8 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use app_units::Au;
-use crate::{OpaqueStyleAndLayoutData, PendingImage, TrustedNodeAddress};
 use crate::rpc::LayoutRPC;
+use crate::{OpaqueStyleAndLayoutData, PendingImage, TrustedNodeAddress};
 use euclid::{Point2D, Rect};
 use gfx_traits::Epoch;
 use ipc_channel::ipc::{IpcReceiver, IpcSender};
@@ -12,9 +12,9 @@ use metrics::PaintTimeMetrics;
 use msg::constellation_msg::PipelineId;
 use net_traits::image_cache::ImageCache;
 use profile_traits::mem::ReportsChan;
+use script_traits::Painter;
 use script_traits::{ConstellationControlMsg, LayoutControlMsg, LayoutMsg as ConstellationMsg};
 use script_traits::{ScrollState, UntrustedNodeAddress, WindowSizeData};
-use script_traits::Painter;
 use servo_arc::Arc as ServoArc;
 use servo_atoms::Atom;
 use servo_channel::{Receiver, Sender};
diff --git a/components/script_layout_interface/reporter.rs b/components/script_layout_interface/reporter.rs
index e96e5669b00..ac52cde8012 100644
--- a/components/script_layout_interface/reporter.rs
+++ b/components/script_layout_interface/reporter.rs
@@ -8,8 +8,8 @@ use log;
 use msg::constellation_msg::PipelineId;
 use script_traits::ConstellationControlMsg;
 use servo_url::ServoUrl;
-use std::sync::{Mutex, Arc};
-use style::error_reporting::{ParseErrorReporter, ContextualParseError};
+use std::sync::{Arc, Mutex};
+use style::error_reporting::{ContextualParseError, ParseErrorReporter};
 
 #[derive(Clone, MallocSizeOf)]
 pub struct CSSErrorReporter {
diff --git a/components/script_layout_interface/rpc.rs b/components/script_layout_interface/rpc.rs
index 8bdb285ed8e..8533b22ef9e 100644
--- a/components/script_layout_interface/rpc.rs
+++ b/components/script_layout_interface/rpc.rs
@@ -6,8 +6,8 @@ use app_units::Au;
 use euclid::{Point2D, Rect};
 use script_traits::UntrustedNodeAddress;
 use servo_arc::Arc;
-use style::properties::ComputedValues;
 use style::properties::longhands::overflow_x;
+use style::properties::ComputedValues;
 use webrender_api::ExternalScrollId;
 
 /// Synchronous messages that script can send to layout.
diff --git a/components/script_layout_interface/wrapper_traits.rs b/components/script_layout_interface/wrapper_traits.rs
index d3de357a3e4..724905f3a8a 100644
--- a/components/script_layout_interface/wrapper_traits.rs
+++ b/components/script_layout_interface/wrapper_traits.rs
@@ -10,8 +10,8 @@ use crate::HTMLMediaData;
 use crate::LayoutNodeType;
 use crate::OpaqueStyleAndLayoutData;
 use crate::SVGSVGData;
-use gfx_traits::{ByteIndex, FragmentType, combine_id_with_fragment_type};
-use html5ever::{Namespace, LocalName};
+use gfx_traits::{combine_id_with_fragment_type, ByteIndex, FragmentType};
+use html5ever::{LocalName, Namespace};
 use msg::constellation_msg::{BrowsingContextId, PipelineId};
 use net_traits::image::base::{Image, ImageMetadata};
 use range::Range;
@@ -22,8 +22,8 @@ use std::sync::Arc as StdArc;
 use style::attr::AttrValue;
 use style::context::SharedStyleContext;
 use style::data::ElementData;
-use style::dom::{LayoutIterator, NodeInfo, TElement, TNode};
 use style::dom::OpaqueNode;
+use style::dom::{LayoutIterator, NodeInfo, TElement, TNode};
 use style::font_metrics::ServoMetricsProvider;
 use style::properties::ComputedValues;
 use style::selector_parser::{PseudoElement, PseudoElementCascadeType, SelectorImpl};
diff --git a/components/script_plugins/unrooted_must_root.rs b/components/script_plugins/unrooted_must_root.rs
index 5b4a756194d..7e72f2cc827 100644
--- a/components/script_plugins/unrooted_must_root.rs
+++ b/components/script_plugins/unrooted_must_root.rs
@@ -2,10 +2,10 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::utils::{match_def_path, in_derive_expn};
-use rustc::hir::{self, ExprKind};
+use crate::utils::{in_derive_expn, match_def_path};
 use rustc::hir::intravisit as visit;
-use rustc::lint::{LateContext, LintPass, LintArray, LateLintPass, LintContext};
+use rustc::hir::{self, ExprKind};
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintContext, LintPass};
 use rustc::ty;
 use syntax::{ast, source_map, symbol::Ident};
 
diff --git a/components/script_traits/lib.rs b/components/script_traits/lib.rs
index 4dc483e8101..5f54c4c6ce1 100644
--- a/components/script_traits/lib.rs
+++ b/components/script_traits/lib.rs
@@ -47,21 +47,21 @@ use bluetooth_traits::BluetoothRequest;
 use canvas_traits::webgl::WebGLPipeline;
 use crate::webdriver_msg::{LoadStatus, WebDriverScriptCommand};
 use devtools_traits::{DevtoolScriptControlMsg, ScriptToDevtoolsControlMsg, WorkerId};
-use euclid::{Length, Point2D, Vector2D, Rect, TypedSize2D, TypedScale};
+use euclid::{Length, Point2D, Rect, TypedScale, TypedSize2D, Vector2D};
 use gfx_traits::Epoch;
 use http::HeaderMap;
 use hyper::Method;
-use ipc_channel::{Error as IpcError};
 use ipc_channel::ipc::{IpcReceiver, IpcSender};
+use ipc_channel::Error as IpcError;
 use keyboard_types::KeyboardEvent;
 use libc::c_void;
 use msg::constellation_msg::{BrowsingContextId, HistoryStateId, PipelineId};
-use msg::constellation_msg::{PipelineNamespaceId, TraversalDirection, TopLevelBrowsingContextId};
-use net_traits::{FetchResponseMsg, ReferrerPolicy, ResourceThreads};
+use msg::constellation_msg::{PipelineNamespaceId, TopLevelBrowsingContextId, TraversalDirection};
 use net_traits::image::base::Image;
 use net_traits::image::base::PixelFormat;
 use net_traits::image_cache::ImageCache;
 use net_traits::storage_thread::StorageType;
+use net_traits::{FetchResponseMsg, ReferrerPolicy, ResourceThreads};
 use profile_traits::mem;
 use profile_traits::time as profile_time;
 use serde::{Deserialize, Deserializer, Serialize, Serializer};
@@ -72,14 +72,18 @@ use servo_url::ServoUrl;
 use std::collections::HashMap;
 use std::fmt;
 use std::sync::Arc;
+use style_traits::cursor::CursorKind;
 use style_traits::CSSPixel;
 use style_traits::SpeculativePainter;
-use style_traits::cursor::CursorKind;
-use webrender_api::{DevicePixel, DeviceUintSize, DocumentId, ExternalScrollId, ImageKey, RenderApiSender};
+use webrender_api::{
+    DevicePixel, DeviceUintSize, DocumentId, ExternalScrollId, ImageKey, RenderApiSender,
+};
 use webvr_traits::{WebVREvent, WebVRMsg};
 
-pub use crate::script_msg::{LayoutMsg, ScriptMsg, EventResult, LogEntry};
-pub use crate::script_msg::{ServiceWorkerMsg, ScopeThings, SWManagerMsg, SWManagerSenders, DOMMessage};
+pub use crate::script_msg::{
+    DOMMessage, SWManagerMsg, SWManagerSenders, ScopeThings, ServiceWorkerMsg,
+};
+pub use crate::script_msg::{EventResult, LayoutMsg, LogEntry, ScriptMsg};
 
 /// The address of a node. Layout sends these back. They must be validated via
 /// `from_untrusted_node_address` before they can be used, because we do not trust layout.
diff --git a/components/script_traits/script_msg.rs b/components/script_traits/script_msg.rs
index b77524f448b..5167f191509 100644
--- a/components/script_traits/script_msg.rs
+++ b/components/script_traits/script_msg.rs
@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use canvas_traits::canvas::{CanvasMsg, CanvasId};
+use canvas_traits::canvas::{CanvasId, CanvasMsg};
 use crate::AnimationState;
 use crate::AuxiliaryBrowsingContextLoadInfo;
 use crate::DocumentState;
@@ -19,15 +19,15 @@ use gfx_traits::Epoch;
 use ipc_channel::ipc::{IpcReceiver, IpcSender};
 use msg::constellation_msg::{BrowsingContextId, PipelineId, TopLevelBrowsingContextId};
 use msg::constellation_msg::{HistoryStateId, TraversalDirection};
-use net_traits::CoreResourceMsg;
 use net_traits::request::RequestInit;
 use net_traits::storage_thread::StorageType;
+use net_traits::CoreResourceMsg;
 use servo_url::ImmutableOrigin;
 use servo_url::ServoUrl;
 use std::fmt;
-use style_traits::CSSPixel;
 use style_traits::cursor::CursorKind;
 use style_traits::viewport::ViewportConstraints;
+use style_traits::CSSPixel;
 use webrender_api::{DeviceIntPoint, DeviceUintSize};
 
 /// Messages from the layout to the constellation.
diff --git a/components/selectors/builder.rs b/components/selectors/builder.rs
index b17ed9bfc63..8fcca8f78e2 100644
--- a/components/selectors/builder.rs
+++ b/components/selectors/builder.rs
@@ -23,7 +23,7 @@ use sink::Push;
 use smallvec::{self, SmallVec};
 use std::cmp;
 use std::iter;
-use std::ops::{AddAssign, Add};
+use std::ops::{Add, AddAssign};
 use std::ptr;
 use std::slice;
 
diff --git a/components/selectors/parser.rs b/components/selectors/parser.rs
index 433f58992af..0709c4eef99 100644
--- a/components/selectors/parser.rs
+++ b/components/selectors/parser.rs
@@ -8,10 +8,10 @@ use attr::{ParsedCaseSensitivity, SELECTOR_WHITESPACE};
 use bloom::BLOOM_HASH_MASK;
 use builder::{SelectorBuilder, SpecificityAndFlags};
 use context::QuirksMode;
+use cssparser::{parse_nth, serialize_identifier};
 use cssparser::{BasicParseError, BasicParseErrorKind, ParseError, ParseErrorKind};
 use cssparser::{CowRcStr, Delimiter, SourceLocation};
 use cssparser::{CssStringWriter, Parser as CssParser, ToCss, Token};
-use cssparser::{parse_nth, serialize_identifier};
 use precomputed_hash::PrecomputedHash;
 use servo_arc::ThinArc;
 use sink::Push;
@@ -2146,12 +2146,12 @@ where
 // NB: pub module in order to access the DummyParser
 #[cfg(test)]
 pub mod tests {
+    use super::*;
     use builder::HAS_PSEUDO_BIT;
     use cssparser::{serialize_identifier, Parser as CssParser, ParserInput, ToCss};
     use parser;
     use std::collections::HashMap;
     use std::fmt;
-    use super::*;
 
     #[derive(Clone, Debug, Eq, PartialEq)]
     pub enum PseudoClass {
diff --git a/components/servo/lib.rs b/components/servo/lib.rs
index c1b1e21f91a..94fd50508af 100644
--- a/components/servo/lib.rs
+++ b/components/servo/lib.rs
@@ -44,8 +44,8 @@ pub extern crate net_traits;
 pub extern crate profile;
 pub extern crate profile_traits;
 pub extern crate script;
-pub extern crate script_traits;
 pub extern crate script_layout_interface;
+pub extern crate script_traits;
 pub extern crate servo_channel;
 pub extern crate servo_config;
 pub extern crate servo_geometry;
@@ -73,13 +73,13 @@ use bluetooth::BluetoothThreadFactory;
 use bluetooth_traits::BluetoothRequest;
 use canvas::gl_context::GLContextFactory;
 use canvas::webgl_thread::WebGLThreads;
-use compositing::{IOCompositor, ShutdownState, RenderNotifier};
 use compositing::compositor_thread::{CompositorProxy, CompositorReceiver, InitialCompositorState};
 use compositing::windowing::{WindowEvent, WindowMethods};
-use constellation::{Constellation, InitialConstellationState, UnprivilegedPipelineContent};
-use constellation::{FromCompositorLogger, FromScriptLogger};
+use compositing::{IOCompositor, RenderNotifier, ShutdownState};
 #[cfg(all(not(target_os = "windows"), not(target_os = "ios")))]
 use constellation::content_process_sandbox_profile;
+use constellation::{Constellation, InitialConstellationState, UnprivilegedPipelineContent};
+use constellation::{FromCompositorLogger, FromScriptLogger};
 use embedder_traits::{EmbedderMsg, EmbedderProxy, EmbedderReceiver, EventLoopWaker};
 use env_logger::Builder as EnvLoggerBuilder;
 #[cfg(all(not(target_os = "windows"), not(target_os = "ios")))]
@@ -95,7 +95,7 @@ use profile::time as profile_time;
 use profile_traits::mem;
 use profile_traits::time;
 use script_traits::{ConstellationMsg, SWManagerSenders, ScriptToConstellationChan};
-use servo_channel::{Sender, channel};
+use servo_channel::{channel, Sender};
 use servo_config::opts;
 use servo_config::prefs::PREFS;
 use std::borrow::Cow;
@@ -103,12 +103,12 @@ use std::cmp::max;
 use std::path::PathBuf;
 use std::rc::Rc;
 use webrender::{RendererKind, ShaderPrecacheFlags};
-use webvr::{WebVRThread, WebVRCompositorHandler};
+use webvr::{WebVRCompositorHandler, WebVRThread};
 
 pub use gleam::gl;
+pub use msg::constellation_msg::TopLevelBrowsingContextId as BrowserId;
 pub use servo_config as config;
 pub use servo_url as url;
-pub use msg::constellation_msg::{TopLevelBrowsingContextId as BrowserId};
 
 /// The in-process interface to Servo.
 ///
diff --git a/components/servo_arc/lib.rs b/components/servo_arc/lib.rs
index 05296165acc..1a80f057b9b 100644
--- a/components/servo_arc/lib.rs
+++ b/components/servo_arc/lib.rs
@@ -32,7 +32,6 @@ use nodrop::NoDrop;
 #[cfg(feature = "servo")]
 use serde::{Deserialize, Serialize};
 use stable_deref_trait::{CloneStableDeref, StableDeref};
-use std::{isize, usize};
 use std::borrow;
 use std::cmp::Ordering;
 use std::convert::From;
@@ -48,6 +47,7 @@ use std::ptr;
 use std::slice;
 use std::sync::atomic;
 use std::sync::atomic::Ordering::{Acquire, Relaxed, Release};
+use std::{isize, usize};
 
 // Private macro to get the offset of a struct field in bytes from the address of the struct.
 macro_rules! offset_of {
@@ -1170,11 +1170,11 @@ impl<A: fmt::Debug, B: fmt::Debug> fmt::Debug for ArcUnion<A, B> {
 
 #[cfg(test)]
 mod tests {
+    use super::{Arc, HeaderWithLength, ThinArc};
     use std::clone::Clone;
     use std::ops::Drop;
     use std::sync::atomic;
     use std::sync::atomic::Ordering::{Acquire, SeqCst};
-    use super::{Arc, HeaderWithLength, ThinArc};
 
     #[derive(PartialEq)]
     struct Canary(*mut atomic::AtomicUsize);
diff --git a/components/style/animation.rs b/components/style/animation.rs
index 0dc55739e5f..14ea1e21a2d 100644
--- a/components/style/animation.rs
+++ b/components/style/animation.rs
@@ -8,15 +8,14 @@
 // compile it out so that people remember it exists, thus the cfg'd Sender
 // import.
 
-use Atom;
 use bezier::Bezier;
 use context::SharedStyleContext;
 use dom::{OpaqueNode, TElement};
 use font_metrics::FontMetricsProvider;
-use properties::{self, CascadeMode, ComputedValues, LonghandId};
 use properties::animated_properties::AnimatedProperty;
 use properties::longhands::animation_direction::computed_value::single_value::T as AnimationDirection;
 use properties::longhands::animation_play_state::computed_value::single_value::T as AnimationPlayState;
+use properties::{self, CascadeMode, ComputedValues, LonghandId};
 use rule_tree::CascadeLevel;
 use servo_arc::Arc;
 #[cfg(feature = "servo")]
@@ -26,11 +25,12 @@ use std::fmt;
 use std::sync::mpsc::Sender;
 use stylesheets::keyframes_rule::{KeyframesAnimation, KeyframesStep, KeyframesStepValue};
 use timer::Timer;
+use values::computed::box_::TransitionProperty;
 use values::computed::Time;
 use values::computed::TimingFunction;
-use values::computed::box_::TransitionProperty;
 use values::generics::box_::AnimationIterationCount;
 use values::generics::easing::{StepPosition, TimingFunction as GenericTimingFunction};
+use Atom;
 
 /// This structure represents a keyframes animation current iteration state.
 ///
diff --git a/components/style/attr.rs b/components/style/attr.rs
index a3b119c3a97..158875ea327 100644
--- a/components/style/attr.rs
+++ b/components/style/attr.rs
@@ -6,7 +6,6 @@
 //!
 //! [attr]: https://dom.spec.whatwg.org/#interface-attr
 
-use {Atom, LocalName, Namespace, Prefix};
 use app_units::Au;
 use cssparser::{self, Color, RGBA};
 use euclid::num::Zero;
@@ -17,10 +16,11 @@ use servo_arc::Arc;
 use servo_url::ServoUrl;
 use shared_lock::Locked;
 use std::str::FromStr;
+use str::str_join;
 use str::{read_exponent, read_fraction, HTML_SPACE_CHARACTERS};
 use str::{read_numbers, split_commas, split_html_space_chars};
-use str::str_join;
 use values::specified::Length;
+use {Atom, LocalName, Namespace, Prefix};
 
 // Duplicated from script::dom::values.
 const UNSIGNED_LONG_MAX: u32 = 2147483647;
diff --git a/components/style/build_gecko.rs b/components/style/build_gecko.rs
index adce4698ce6..1909c15330d 100644
--- a/components/style/build_gecko.rs
+++ b/components/style/build_gecko.rs
@@ -14,6 +14,8 @@ mod common {
 
 #[cfg(feature = "bindgen")]
 mod bindings {
+    use super::super::PYTHON;
+    use super::common::*;
     use bindgen::{Builder, CodegenConfig};
     use regex::Regex;
     use std::cmp;
@@ -26,8 +28,6 @@ mod bindings {
     use std::slice;
     use std::sync::Mutex;
     use std::time::SystemTime;
-    use super::common::*;
-    use super::super::PYTHON;
     use toml;
     use toml::value::Table;
 
@@ -606,9 +606,9 @@ mod bindings {
 
 #[cfg(not(feature = "bindgen"))]
 mod bindings {
-    use std::{env, fs, io};
-    use std::path::{Path, PathBuf};
     use super::common::*;
+    use std::path::{Path, PathBuf};
+    use std::{env, fs, io};
 
     /// Copy contents of one directory into another.
     /// It currently only does a shallow copy.
diff --git a/components/style/context.rs b/components/style/context.rs
index 0623cb05a4a..822107a351d 100644
--- a/components/style/context.rs
+++ b/components/style/context.rs
@@ -9,9 +9,9 @@ use animation::Animation;
 use app_units::Au;
 use bloom::StyleBloom;
 use data::{EagerPseudoStyles, ElementData};
-use dom::{SendElement, TElement};
 #[cfg(feature = "servo")]
 use dom::OpaqueNode;
+use dom::{SendElement, TElement};
 use euclid::Size2D;
 use euclid::TypedScale;
 use font_metrics::FontMetricsProvider;
@@ -27,8 +27,8 @@ use properties::PropertyId;
 use rule_cache::RuleCache;
 use rule_tree::StrongRuleNode;
 use selector_parser::{SnapshotMap, EAGER_PSEUDO_COUNT};
-use selectors::NthIndexCache;
 use selectors::matching::ElementSelectorFlags;
+use selectors::NthIndexCache;
 use servo_arc::Arc;
 #[cfg(feature = "servo")]
 use servo_atoms::Atom;
diff --git a/components/style/counter_style/mod.rs b/components/style/counter_style/mod.rs
index 97c8d414d89..73bab765920 100644
--- a/components/style/counter_style/mod.rs
+++ b/components/style/counter_style/mod.rs
@@ -6,7 +6,6 @@
 //!
 //! [counter-style]: https://drafts.csswg.org/css-counter-styles/
 
-use Atom;
 use cssparser::{AtRuleParser, DeclarationListParser, DeclarationParser};
 use cssparser::{CowRcStr, Parser, SourceLocation, Token};
 use error_reporting::ContextualParseError;
@@ -20,8 +19,9 @@ use std::ops::Range;
 use str::CssStringWriter;
 use style_traits::{Comma, CssWriter, OneOrMoreSeparated, ParseError};
 use style_traits::{StyleParseErrorKind, ToCss};
-use values::CustomIdent;
 use values::specified::Integer;
+use values::CustomIdent;
+use Atom;
 
 /// Parse a counter style name reference.
 ///
diff --git a/components/style/custom_properties.rs b/components/style/custom_properties.rs
index 7f91c93378b..630fb4ba116 100644
--- a/components/style/custom_properties.rs
+++ b/components/style/custom_properties.rs
@@ -6,7 +6,6 @@
 //!
 //! [custom]: https://drafts.csswg.org/css-variables/
 
-use Atom;
 use cssparser::{Delimiter, Parser, ParserInput, SourcePosition, Token, TokenSerializationType};
 use hash::map::Entry;
 use precomputed_hash::PrecomputedHash;
@@ -20,6 +19,7 @@ use std::cmp;
 use std::fmt::{self, Write};
 use std::hash::Hash;
 use style_traits::{CssWriter, ParseError, StyleParseErrorKind, ToCss};
+use Atom;
 
 /// The environment from which to get `env` function values.
 ///
diff --git a/components/style/dom.rs b/components/style/dom.rs
index 872a55a54b2..3d2b05de7dc 100644
--- a/components/style/dom.rs
+++ b/components/style/dom.rs
@@ -7,7 +7,6 @@
 #![allow(unsafe_code)]
 #![deny(missing_docs)]
 
-use {Atom, LocalName, Namespace, WeakAtom};
 use applicable_declarations::ApplicableDeclarationBlock;
 use atomic_refcell::{AtomicRef, AtomicRefCell, AtomicRefMut};
 #[cfg(feature = "gecko")]
@@ -20,9 +19,9 @@ use font_metrics::FontMetricsProvider;
 use media_queries::Device;
 use properties::{AnimationRules, ComputedValues, PropertyDeclarationBlock};
 use selector_parser::{AttrValue, Lang, PseudoElement, SelectorImpl};
-use selectors::Element as SelectorsElement;
 use selectors::matching::{ElementSelectorFlags, QuirksMode, VisitedHandlingMode};
 use selectors::sink::Push;
+use selectors::Element as SelectorsElement;
 use servo_arc::{Arc, ArcBorrow};
 use shared_lock::Locked;
 use std::fmt;
@@ -31,6 +30,7 @@ use std::hash::Hash;
 use std::ops::Deref;
 use stylist::CascadeData;
 use traversal_flags::TraversalFlags;
+use {Atom, LocalName, Namespace, WeakAtom};
 
 /// An opaque handle to a node, which, unlike UnsafeNode, cannot be transformed
 /// back into a non-opaque representation. The only safe operation that can be
diff --git a/components/style/dom_apis.rs b/components/style/dom_apis.rs
index 9b613f15057..371c83e7238 100644
--- a/components/style/dom_apis.rs
+++ b/components/style/dom_apis.rs
@@ -5,17 +5,17 @@
 //! Generic implementations of some DOM APIs so they can be shared between Servo
 //! and Gecko.
 
-use Atom;
 use context::QuirksMode;
 use dom::{TDocument, TElement, TNode, TShadowRoot};
 use invalidation::element::invalidator::{DescendantInvalidationLists, Invalidation};
 use invalidation::element::invalidator::{InvalidationProcessor, InvalidationVector};
-use selectors::{Element, NthIndexCache, SelectorList};
 use selectors::attr::CaseSensitivity;
 use selectors::matching::{self, MatchingContext, MatchingMode};
 use selectors::parser::{Combinator, Component, LocalName, SelectorImpl};
+use selectors::{Element, NthIndexCache, SelectorList};
 use smallvec::SmallVec;
 use std::borrow::Borrow;
+use Atom;
 
 /// <https://dom.spec.whatwg.org/#dom-element-matches>
 pub fn element_matches<E>(
diff --git a/components/style/font_face.rs b/components/style/font_face.rs
index b09c929c2df..d257aa53773 100644
--- a/components/style/font_face.rs
+++ b/components/style/font_face.rs
@@ -6,10 +6,10 @@
 //!
 //! [ff]: https://drafts.csswg.org/css-fonts/#at-font-face-rule
 
-use cssparser::{AtRuleParser, DeclarationListParser, DeclarationParser, Parser};
-use cssparser::{CowRcStr, SourceLocation};
 #[cfg(feature = "gecko")]
 use cssparser::UnicodeRange;
+use cssparser::{AtRuleParser, DeclarationListParser, DeclarationParser, Parser};
+use cssparser::{CowRcStr, SourceLocation};
 use error_reporting::ContextualParseError;
 use parser::{Parse, ParserContext};
 #[cfg(feature = "gecko")]
@@ -18,17 +18,17 @@ use selectors::parser::SelectorParseErrorKind;
 use shared_lock::{SharedRwLockReadGuard, ToCssWithGuard};
 use std::fmt::{self, Write};
 use str::CssStringWriter;
+use style_traits::values::SequenceWriter;
 use style_traits::{Comma, CssWriter, OneOrMoreSeparated, ParseError};
 use style_traits::{StyleParseErrorKind, ToCss};
-use style_traits::values::SequenceWriter;
 use values::computed::font::FamilyName;
 use values::generics::font::FontStyle as GenericFontStyle;
-use values::specified::Angle;
+use values::specified::font::SpecifiedFontStyle;
 use values::specified::font::{AbsoluteFontWeight, FontStretch};
 #[cfg(feature = "gecko")]
 use values::specified::font::{SpecifiedFontFeatureSettings, SpecifiedFontVariationSettings};
-use values::specified::font::SpecifiedFontStyle;
 use values::specified::url::SpecifiedUrl;
+use values::specified::Angle;
 
 /// A source for a font-face rule.
 #[cfg_attr(feature = "servo", derive(Deserialize, Serialize))]
diff --git a/components/style/font_metrics.rs b/components/style/font_metrics.rs
index dfe461cb393..e093f13ef18 100644
--- a/components/style/font_metrics.rs
+++ b/components/style/font_metrics.rs
@@ -6,12 +6,12 @@
 
 #![deny(missing_docs)]
 
-use Atom;
 use app_units::Au;
 use context::SharedStyleContext;
 use logical_geometry::WritingMode;
 use media_queries::Device;
 use properties::style_structs::Font;
+use Atom;
 
 /// Represents the font metrics that style needs from a font to compute the
 /// value of certain CSS units like `ex`.
diff --git a/components/style/gecko/arc_types.rs b/components/style/gecko/arc_types.rs
index 0a9bf4d5ccc..ed409804274 100644
--- a/components/style/gecko/arc_types.rs
+++ b/components/style/gecko/arc_types.rs
@@ -31,16 +31,16 @@ use gecko_bindings::structs::RawServoStyleRule;
 use gecko_bindings::structs::RawServoStyleSheetContents;
 use gecko_bindings::sugar::ownership::{HasArcFFI, HasFFI, Strong};
 use media_queries::MediaList;
-use properties::{ComputedValues, PropertyDeclarationBlock};
 use properties::animated_properties::AnimationValue;
+use properties::{ComputedValues, PropertyDeclarationBlock};
 use rule_tree::StrongRuleNode;
 use servo_arc::{Arc, ArcBorrow};
 use shared_lock::Locked;
 use std::{mem, ptr};
+use stylesheets::keyframes_rule::Keyframe;
 use stylesheets::{CounterStyleRule, CssRules, FontFaceRule, FontFeatureValuesRule};
 use stylesheets::{DocumentRule, ImportRule, KeyframesRule, MediaRule, NamespaceRule, PageRule};
 use stylesheets::{StyleRule, StylesheetContents, SupportsRule};
-use stylesheets::keyframes_rule::Keyframe;
 
 macro_rules! impl_arc_ffi {
     ($servo_type:ty => $gecko_type:ty[$addref:ident, $release:ident]) => {
diff --git a/components/style/gecko/conversions.rs b/components/style/gecko/conversions.rs
index 947a8c6e1a6..b85b3bd6eb1 100644
--- a/components/style/gecko/conversions.rs
+++ b/components/style/gecko/conversions.rs
@@ -12,15 +12,17 @@ use app_units::Au;
 use gecko::values::GeckoStyleCoordConvertible;
 use gecko_bindings::bindings;
 use gecko_bindings::structs::{self, nsStyleCoord_CalcValue};
-use gecko_bindings::structs::{nsresult, SheetType, nsStyleImage};
+use gecko_bindings::structs::{nsStyleImage, nsresult, SheetType};
 use gecko_bindings::sugar::ns_style_coord::{CoordData, CoordDataMut, CoordDataValue};
 use std::f32::consts::PI;
 use stylesheets::{Origin, RulesMutateError};
-use values::computed::{Angle, CalcLengthOrPercentage, Gradient, Image};
-use values::computed::{Integer, LengthOrPercentage, LengthOrPercentageOrAuto, NonNegativeLengthOrPercentageOrAuto};
-use values::computed::{Percentage, TextAlign};
 use values::computed::image::LineDirection;
 use values::computed::url::ComputedImageUrl;
+use values::computed::{Angle, CalcLengthOrPercentage, Gradient, Image};
+use values::computed::{
+    Integer, LengthOrPercentage, LengthOrPercentageOrAuto, NonNegativeLengthOrPercentageOrAuto,
+};
+use values::computed::{Percentage, TextAlign};
 use values::generics::box_::VerticalAlign;
 use values::generics::grid::{TrackListValue, TrackSize};
 use values::generics::image::{CompatMode, GradientItem, Image as GenericImage};
@@ -233,11 +235,11 @@ impl nsStyleImage {
 
     // FIXME(emilio): This is really complex, we should use cbindgen for this.
     fn set_gradient(&mut self, gradient: Gradient) {
+        use self::structs::nsStyleCoord;
         use self::structs::NS_STYLE_GRADIENT_SIZE_CLOSEST_CORNER as CLOSEST_CORNER;
         use self::structs::NS_STYLE_GRADIENT_SIZE_CLOSEST_SIDE as CLOSEST_SIDE;
         use self::structs::NS_STYLE_GRADIENT_SIZE_FARTHEST_CORNER as FARTHEST_CORNER;
         use self::structs::NS_STYLE_GRADIENT_SIZE_FARTHEST_SIDE as FARTHEST_SIDE;
-        use self::structs::nsStyleCoord;
         use values::generics::image::{Circle, Ellipse, EndingShape, GradientKind, ShapeExtent};
         use values::specified::position::{X, Y};
 
@@ -495,9 +497,9 @@ impl nsStyleImage {
         use self::structs::NS_STYLE_GRADIENT_SIZE_CLOSEST_SIDE as CLOSEST_SIDE;
         use self::structs::NS_STYLE_GRADIENT_SIZE_FARTHEST_CORNER as FARTHEST_CORNER;
         use self::structs::NS_STYLE_GRADIENT_SIZE_FARTHEST_SIDE as FARTHEST_SIDE;
-        use values::computed::Length;
         use values::computed::image::LineDirection;
         use values::computed::position::Position;
+        use values::computed::Length;
         use values::generics::image::{Circle, ColorStop, CompatMode, Ellipse};
         use values::generics::image::{EndingShape, GradientKind, ShapeExtent};
 
@@ -652,9 +654,9 @@ pub mod basic_shape {
 
     use gecko::values::GeckoStyleCoordConvertible;
     use gecko_bindings::structs;
+    use gecko_bindings::structs::{nsStyleCoord, nsStyleCorners};
     use gecko_bindings::structs::{StyleBasicShape, StyleBasicShapeType};
     use gecko_bindings::structs::{StyleGeometryBox, StyleShapeSource, StyleShapeSourceType};
-    use gecko_bindings::structs::{nsStyleCoord, nsStyleCorners};
     use gecko_bindings::sugar::ns_style_coord::{CoordDataMut, CoordDataValue};
     use gecko_bindings::sugar::refptr::RefPtr;
     use std::borrow::Borrow;
diff --git a/components/style/gecko/data.rs b/components/style/gecko/data.rs
index 2ede2f5b81f..7761d9c2655 100644
--- a/components/style/gecko/data.rs
+++ b/components/style/gecko/data.rs
@@ -8,8 +8,10 @@ use atomic_refcell::{AtomicRef, AtomicRefCell, AtomicRefMut};
 use context::QuirksMode;
 use dom::TElement;
 use gecko_bindings::bindings::{self, RawServoStyleSet};
-use gecko_bindings::structs::{RawGeckoPresContextBorrowed, ServoStyleSetSizes, StyleSheet as DomStyleSheet};
-use gecko_bindings::structs::{StyleSheetInfo, nsIDocument};
+use gecko_bindings::structs::{nsIDocument, StyleSheetInfo};
+use gecko_bindings::structs::{
+    RawGeckoPresContextBorrowed, ServoStyleSetSizes, StyleSheet as DomStyleSheet,
+};
 use gecko_bindings::sugar::ownership::{HasArcFFI, HasBoxFFI, HasFFI, HasSimpleFFI};
 use invalidation::media_queries::{MediaListKey, ToMediaListKey};
 use malloc_size_of::MallocSizeOfOps;
diff --git a/components/style/gecko/global_style_data.rs b/components/style/gecko/global_style_data.rs
index 6671de9867d..8007acb6ce2 100644
--- a/components/style/gecko/global_style_data.rs
+++ b/components/style/gecko/global_style_data.rs
@@ -5,8 +5,8 @@
 //! Global style data
 
 use context::StyleSystemOptions;
-use gecko_bindings::bindings::{Gecko_RegisterProfilerThread, Gecko_UnregisterProfilerThread};
 use gecko_bindings::bindings::Gecko_SetJemallocThreadLocalArena;
+use gecko_bindings::bindings::{Gecko_RegisterProfilerThread, Gecko_UnregisterProfilerThread};
 use num_cpus;
 use parallel::STYLE_THREAD_STACK_SIZE_KB;
 use rayon;
diff --git a/components/style/gecko/media_features.rs b/components/style/gecko/media_features.rs
index c0453b18d22..176d36459df 100644
--- a/components/style/gecko/media_features.rs
+++ b/components/style/gecko/media_features.rs
@@ -4,17 +4,17 @@
 
 //! Gecko's media feature list and evaluator.
 
-use Atom;
 use app_units::Au;
 use euclid::Size2D;
 use gecko_bindings::bindings;
 use gecko_bindings::structs;
-use media_queries::Device;
 use media_queries::media_feature::{AllowsRanges, ParsingRequirements};
-use media_queries::media_feature::{MediaFeatureDescription, Evaluator};
+use media_queries::media_feature::{Evaluator, MediaFeatureDescription};
 use media_queries::media_feature_expression::{AspectRatio, RangeOrOperator};
+use media_queries::Device;
 use values::computed::CSSPixelLength;
 use values::computed::Resolution;
+use Atom;
 
 fn viewport_size(device: &Device) -> Size2D<Au> {
     let pc = device.pres_context();
diff --git a/components/style/gecko/media_queries.rs b/components/style/gecko/media_queries.rs
index ae14d332f89..25abac6f974 100644
--- a/components/style/gecko/media_queries.rs
+++ b/components/style/gecko/media_queries.rs
@@ -4,8 +4,8 @@
 
 //! Gecko's media-query device and expression representation.
 
-use app_units::AU_PER_PX;
 use app_units::Au;
+use app_units::AU_PER_PX;
 use cssparser::RGBA;
 use custom_properties::CssEnvironment;
 use euclid::Size2D;
@@ -20,10 +20,10 @@ use servo_arc::Arc;
 use std::fmt;
 use std::sync::atomic::{AtomicBool, AtomicIsize, AtomicUsize, Ordering};
 use string_cache::Atom;
-use style_traits::{CSSPixel, DevicePixel};
 use style_traits::viewport::ViewportConstraints;
-use values::{CustomIdent, KeyframesName};
+use style_traits::{CSSPixel, DevicePixel};
 use values::computed::font::FontSize;
+use values::{CustomIdent, KeyframesName};
 
 /// The `Device` in Gecko wraps a pres context, has a default values computed,
 /// and contains all the viewport rule state.
diff --git a/components/style/gecko/pseudo_element.rs b/components/style/gecko/pseudo_element.rs
index 1164a39bdc4..b17a5e6349e 100644
--- a/components/style/gecko/pseudo_element.rs
+++ b/components/style/gecko/pseudo_element.rs
@@ -10,8 +10,8 @@
 
 use cssparser::ToCss;
 use gecko_bindings::structs::{self, CSSPseudoElementType};
-use properties::{ComputedValues, PropertyFlags};
 use properties::longhands::display::computed_value::T as Display;
+use properties::{ComputedValues, PropertyFlags};
 use selector_parser::{NonTSPseudoClass, PseudoElementCascadeType, SelectorImpl};
 use std::fmt;
 use str::{starts_with_ignore_ascii_case, string_as_ascii_lowercase};
diff --git a/components/style/gecko/selector_parser.rs b/components/style/gecko/selector_parser.rs
index 2365356f2f8..420c2f01436 100644
--- a/components/style/gecko/selector_parser.rs
+++ b/components/style/gecko/selector_parser.rs
@@ -12,10 +12,10 @@ use gecko_bindings::structs::RawServoSelectorList;
 use gecko_bindings::sugar::ownership::{HasBoxFFI, HasFFI, HasSimpleFFI};
 use invalidation::element::document_state::InvalidationMatchingData;
 use selector_parser::{Direction, SelectorParser};
-use selectors::SelectorList;
-use selectors::parser::{SelectorParseErrorKind, Visit};
 use selectors::parser::{self as selector_parser, Selector};
+use selectors::parser::{SelectorParseErrorKind, Visit};
 use selectors::visitor::SelectorVisitor;
+use selectors::SelectorList;
 use std::fmt;
 use str::starts_with_ignore_ascii_case;
 use string_cache::{Atom, Namespace, WeakAtom, WeakNamespace};
diff --git a/components/style/gecko/snapshot.rs b/components/style/gecko/snapshot.rs
index fc4a9121ae4..a72fea248aa 100644
--- a/components/style/gecko/snapshot.rs
+++ b/components/style/gecko/snapshot.rs
@@ -5,7 +5,6 @@
 //! A gecko snapshot, that stores the element attributes and state before they
 //! change in order to properly calculate restyle hints.
 
-use WeakAtom;
 use dom::TElement;
 use element_state::ElementState;
 use gecko::snapshot_helpers;
@@ -18,6 +17,7 @@ use invalidation::element::element_wrapper::ElementSnapshot;
 use selectors::attr::{AttrSelectorOperation, AttrSelectorOperator};
 use selectors::attr::{CaseSensitivity, NamespaceConstraint};
 use string_cache::{Atom, Namespace};
+use WeakAtom;
 
 /// A snapshot of a Gecko element.
 pub type GeckoElementSnapshot = ServoElementSnapshot;
diff --git a/components/style/gecko/snapshot_helpers.rs b/components/style/gecko/snapshot_helpers.rs
index 371a2b78da1..61f6646514d 100644
--- a/components/style/gecko/snapshot_helpers.rs
+++ b/components/style/gecko/snapshot_helpers.rs
@@ -4,11 +4,11 @@
 
 //! Element an snapshot common logic.
 
-use CaseSensitivityExt;
 use gecko_bindings::bindings;
 use gecko_bindings::structs::{self, nsAtom};
 use selectors::attr::CaseSensitivity;
 use string_cache::{Atom, WeakAtom};
+use CaseSensitivityExt;
 
 /// A function that, given an element of type `T`, allows you to get a single
 /// class or a class list.
diff --git a/components/style/gecko/url.rs b/components/style/gecko/url.rs
index a95eb037e35..a04b8e57b70 100644
--- a/components/style/gecko/url.rs
+++ b/components/style/gecko/url.rs
@@ -6,10 +6,10 @@
 
 use cssparser::Parser;
 use gecko_bindings::bindings;
-use gecko_bindings::structs::root::mozilla::CORSMode;
 use gecko_bindings::structs::root::mozilla::css::URLValue;
+use gecko_bindings::structs::root::mozilla::CORSMode;
 use gecko_bindings::structs::root::nsStyleImageRequest;
-use gecko_bindings::sugar::ownership::{HasArcFFI, FFIArcHelpers};
+use gecko_bindings::sugar::ownership::{FFIArcHelpers, HasArcFFI};
 use gecko_bindings::sugar::refptr::RefPtr;
 use malloc_size_of::{MallocSizeOf, MallocSizeOfOps};
 use nsstring::nsCString;
diff --git a/components/style/gecko/values.rs b/components/style/gecko/values.rs
index ffa7a65ee0c..9020888d9a8 100644
--- a/components/style/gecko/values.rs
+++ b/components/style/gecko/values.rs
@@ -6,30 +6,34 @@
 
 //! Different kind of helpers to interact with Gecko values.
 
-use Atom;
 use app_units::Au;
 use counter_style::{Symbol, Symbols};
 use cssparser::RGBA;
-use gecko_bindings::structs::{self, CounterStylePtr, nsStyleCoord};
+use gecko_bindings::structs::{self, nsStyleCoord, CounterStylePtr};
 use gecko_bindings::structs::{StyleGridTrackBreadth, StyleShapeRadius};
 use gecko_bindings::sugar::ns_style_coord::{CoordData, CoordDataMut, CoordDataValue};
 use media_queries::Device;
 use nsstring::{nsACString, nsCStr};
 use std::cmp::max;
-use values::{Auto, Either, None_, Normal};
-use values::computed::{Angle, ExtremumLength, Length, LengthOrPercentage, LengthOrPercentageOrAuto};
+use values::computed::basic_shape::ShapeRadius as ComputedShapeRadius;
+use values::computed::FlexBasis as ComputedFlexBasis;
+use values::computed::{
+    Angle, ExtremumLength, Length, LengthOrPercentage, LengthOrPercentageOrAuto,
+};
 use values::computed::{LengthOrPercentageOrNone, Number, NumberOrPercentage};
-use values::computed::{MaxLength as ComputedMaxLength, MozLength as ComputedMozLength, Percentage};
+use values::computed::{
+    MaxLength as ComputedMaxLength, MozLength as ComputedMozLength, Percentage,
+};
 use values::computed::{NonNegativeLength, NonNegativeLengthOrPercentage, NonNegativeNumber};
-use values::computed::FlexBasis as ComputedFlexBasis;
-use values::computed::basic_shape::ShapeRadius as ComputedShapeRadius;
-use values::generics::{CounterStyleOrNone, NonNegative};
 use values::generics::basic_shape::ShapeRadius;
 use values::generics::box_::Perspective;
 use values::generics::flex::FlexBasis;
 use values::generics::gecko::ScrollSnapPoint;
 use values::generics::grid::{TrackBreadth, TrackKeyword};
 use values::generics::length::{MaxLength, MozLength};
+use values::generics::{CounterStyleOrNone, NonNegative};
+use values::{Auto, Either, None_, Normal};
+use Atom;
 
 /// A trait that defines an interface to convert from and to `nsStyleCoord`s.
 pub trait GeckoStyleCoordConvertible: Sized {
@@ -558,8 +562,8 @@ impl CounterStyleOrNone {
     /// Convert Gecko CounterStylePtr to CounterStyleOrNone or String.
     pub fn from_gecko_value(gecko_value: &CounterStylePtr) -> Either<Self, String> {
         use gecko_bindings::bindings;
-        use values::CustomIdent;
         use values::generics::SymbolsType;
+        use values::CustomIdent;
 
         let name = unsafe { bindings::Gecko_CounterStyle_GetName(gecko_value) };
         if !name.is_null() {
diff --git a/components/style/gecko/wrapper.rs b/components/style/gecko/wrapper.rs
index 7c40fd4c2ec..b67e69849d1 100644
--- a/components/style/gecko/wrapper.rs
+++ b/components/style/gecko/wrapper.rs
@@ -14,7 +14,6 @@
 //! style system it's kind of pointless in the Stylo case, and only Servo forces
 //! the separation between the style system implementation and everything else.
 
-use CaseSensitivityExt;
 use app_units::Au;
 use applicable_declarations::ApplicableDeclarationBlock;
 use atomic_refcell::{AtomicRefCell, AtomicRefMut};
@@ -29,9 +28,6 @@ use gecko::global_style_data::GLOBAL_STYLE_DATA;
 use gecko::selector_parser::{NonTSPseudoClass, PseudoElement, SelectorImpl};
 use gecko::snapshot_helpers;
 use gecko_bindings::bindings;
-use gecko_bindings::bindings::{Gecko_ElementState, Gecko_GetDocumentLWTheme};
-use gecko_bindings::bindings::{Gecko_GetLastChild, Gecko_GetPreviousSibling, Gecko_GetNextStyleChild};
-use gecko_bindings::bindings::{Gecko_SetNodeFlags, Gecko_UnsetNodeFlags};
 use gecko_bindings::bindings::Gecko_ElementHasAnimations;
 use gecko_bindings::bindings::Gecko_ElementHasCSSAnimations;
 use gecko_bindings::bindings::Gecko_ElementHasCSSTransitions;
@@ -47,35 +43,40 @@ use gecko_bindings::bindings::Gecko_IsSignificantChild;
 use gecko_bindings::bindings::Gecko_MatchLang;
 use gecko_bindings::bindings::Gecko_UnsetDirtyStyleAttr;
 use gecko_bindings::bindings::Gecko_UpdateAnimations;
+use gecko_bindings::bindings::{Gecko_ElementState, Gecko_GetDocumentLWTheme};
+use gecko_bindings::bindings::{
+    Gecko_GetLastChild, Gecko_GetNextStyleChild, Gecko_GetPreviousSibling,
+};
+use gecko_bindings::bindings::{Gecko_SetNodeFlags, Gecko_UnsetNodeFlags};
 use gecko_bindings::structs;
-use gecko_bindings::structs::{RawGeckoElement, RawGeckoNode, RawGeckoXBLBinding};
-use gecko_bindings::structs::{nsAtom, nsIContent, nsINode_BooleanFlag};
+use gecko_bindings::structs::nsChangeHint;
+use gecko_bindings::structs::nsIDocument_DocumentTheme as DocumentTheme;
+use gecko_bindings::structs::nsRestyleHint;
+use gecko_bindings::structs::EffectCompositor_CascadeLevel as CascadeLevel;
 use gecko_bindings::structs::ELEMENT_HANDLED_SNAPSHOT;
 use gecko_bindings::structs::ELEMENT_HAS_ANIMATION_ONLY_DIRTY_DESCENDANTS_FOR_SERVO;
 use gecko_bindings::structs::ELEMENT_HAS_DIRTY_DESCENDANTS_FOR_SERVO;
 use gecko_bindings::structs::ELEMENT_HAS_SNAPSHOT;
-use gecko_bindings::structs::EffectCompositor_CascadeLevel as CascadeLevel;
 use gecko_bindings::structs::NODE_DESCENDANTS_NEED_FRAMES;
 use gecko_bindings::structs::NODE_NEEDS_FRAME;
-use gecko_bindings::structs::nsChangeHint;
-use gecko_bindings::structs::nsIDocument_DocumentTheme as DocumentTheme;
-use gecko_bindings::structs::nsRestyleHint;
+use gecko_bindings::structs::{nsAtom, nsIContent, nsINode_BooleanFlag};
+use gecko_bindings::structs::{RawGeckoElement, RawGeckoNode, RawGeckoXBLBinding};
 use gecko_bindings::sugar::ownership::{HasArcFFI, HasSimpleFFI};
 use hash::FxHashMap;
 use logical_geometry::WritingMode;
 use media_queries::Device;
-use properties::{ComputedValues, LonghandId};
-use properties::{Importance, PropertyDeclaration, PropertyDeclarationBlock};
 use properties::animated_properties::{AnimationValue, AnimationValueMap};
 use properties::style_structs::Font;
+use properties::{ComputedValues, LonghandId};
+use properties::{Importance, PropertyDeclaration, PropertyDeclarationBlock};
 use rule_tree::CascadeLevel as ServoCascadeLevel;
 use selector_parser::{AttrValue, HorizontalDirection, Lang};
-use selectors::{Element, OpaqueElement};
 use selectors::attr::{AttrSelectorOperation, AttrSelectorOperator};
 use selectors::attr::{CaseSensitivity, NamespaceConstraint};
-use selectors::matching::{ElementSelectorFlags, MatchingContext};
 use selectors::matching::VisitedHandlingMode;
+use selectors::matching::{ElementSelectorFlags, MatchingContext};
 use selectors::sink::Push;
+use selectors::{Element, OpaqueElement};
 use servo_arc::{Arc, ArcBorrow, RawOffsetArc};
 use shared_lock::Locked;
 use std::cell::RefCell;
@@ -85,6 +86,7 @@ use std::mem;
 use std::ptr;
 use string_cache::{Atom, Namespace, WeakAtom, WeakNamespace};
 use stylist::CascadeData;
+use CaseSensitivityExt;
 
 #[inline]
 fn elements_with_id<'a, 'le>(
diff --git a/components/style/gecko_bindings/sugar/ns_css_shadow_array.rs b/components/style/gecko_bindings/sugar/ns_css_shadow_array.rs
index 8e445a837e6..f0050796c22 100644
--- a/components/style/gecko_bindings/sugar/ns_css_shadow_array.rs
+++ b/components/style/gecko_bindings/sugar/ns_css_shadow_array.rs
@@ -7,9 +7,9 @@
 use gecko_bindings::bindings::Gecko_AddRefCSSShadowArrayArbitraryThread;
 use gecko_bindings::bindings::Gecko_NewCSSShadowArray;
 use gecko_bindings::bindings::Gecko_ReleaseCSSShadowArrayArbitraryThread;
-use gecko_bindings::structs::{RefPtr, nsCSSShadowArray, nsCSSShadowItem};
-use std::{ptr, slice};
+use gecko_bindings::structs::{nsCSSShadowArray, nsCSSShadowItem, RefPtr};
 use std::ops::{Deref, DerefMut};
+use std::{ptr, slice};
 
 impl RefPtr<nsCSSShadowArray> {
     /// Replaces the current `nsCSSShadowArray` with a new one of len `len`.
diff --git a/components/style/gecko_bindings/sugar/ns_style_auto_array.rs b/components/style/gecko_bindings/sugar/ns_style_auto_array.rs
index 8adb8bb54d1..256199df727 100644
--- a/components/style/gecko_bindings/sugar/ns_style_auto_array.rs
+++ b/components/style/gecko_bindings/sugar/ns_style_auto_array.rs
@@ -6,8 +6,8 @@
 
 use gecko_bindings::bindings::Gecko_EnsureStyleAnimationArrayLength;
 use gecko_bindings::bindings::Gecko_EnsureStyleTransitionArrayLength;
-use gecko_bindings::structs::{StyleAnimation, StyleTransition};
 use gecko_bindings::structs::nsStyleAutoArray;
+use gecko_bindings::structs::{StyleAnimation, StyleTransition};
 use std::iter::{once, Chain, IntoIterator, Once};
 use std::ops::{Index, IndexMut};
 use std::slice::{Iter, IterMut};
diff --git a/components/style/gecko_bindings/sugar/ns_style_coord.rs b/components/style/gecko_bindings/sugar/ns_style_coord.rs
index a4220f8c53c..4dca851f050 100644
--- a/components/style/gecko_bindings/sugar/ns_style_coord.rs
+++ b/components/style/gecko_bindings/sugar/ns_style_coord.rs
@@ -6,7 +6,7 @@
 
 use gecko_bindings::bindings;
 use gecko_bindings::structs::{nsStyleCoord, nsStyleCoord_Calc, nsStyleCoord_CalcValue};
-use gecko_bindings::structs::{nscoord, nsStyleCorners, nsStyleSides, nsStyleUnion, nsStyleUnit};
+use gecko_bindings::structs::{nsStyleCorners, nsStyleSides, nsStyleUnion, nsStyleUnit, nscoord};
 use std::mem;
 
 impl nsStyleCoord {
@@ -277,8 +277,8 @@ pub unsafe trait CoordDataMut: CoordData {
     #[inline(always)]
     /// Sets the inner value.
     fn set_value(&mut self, value: CoordDataValue) {
-        use gecko_bindings::structs::nsStyleUnit::*;
         use self::CoordDataValue::*;
+        use gecko_bindings::structs::nsStyleUnit::*;
         self.reset();
         unsafe {
             let (unit, union) = self.values_mut();
@@ -364,8 +364,8 @@ pub unsafe trait CoordData {
     #[inline(always)]
     /// Get the appropriate value for this object.
     fn as_value(&self) -> CoordDataValue {
-        use gecko_bindings::structs::nsStyleUnit::*;
         use self::CoordDataValue::*;
+        use gecko_bindings::structs::nsStyleUnit::*;
         unsafe {
             match self.unit() {
                 eStyleUnit_Null => Null,
diff --git a/components/style/gecko_bindings/sugar/refptr.rs b/components/style/gecko_bindings/sugar/refptr.rs
index d7e7141e602..ca37c4e576f 100644
--- a/components/style/gecko_bindings/sugar/refptr.rs
+++ b/components/style/gecko_bindings/sugar/refptr.rs
@@ -4,13 +4,13 @@
 
 //! A rust helper to ease the use of Gecko's refcounted types.
 
-use Atom;
-use gecko_bindings::{structs, bindings};
 use gecko_bindings::sugar::ownership::HasArcFFI;
+use gecko_bindings::{bindings, structs};
 use servo_arc::Arc;
-use std::{fmt, mem, ptr};
 use std::marker::PhantomData;
 use std::ops::{Deref, DerefMut};
+use std::{fmt, mem, ptr};
+use Atom;
 
 /// Trait for all objects that have Addref() and Release
 /// methods and can be placed inside RefPtr<T>
diff --git a/components/style/gecko_bindings/sugar/style_complex_color.rs b/components/style/gecko_bindings/sugar/style_complex_color.rs
index c2b3b1c6270..e65d023a68d 100644
--- a/components/style/gecko_bindings/sugar/style_complex_color.rs
+++ b/components/style/gecko_bindings/sugar/style_complex_color.rs
@@ -7,10 +7,10 @@
 use gecko::values::{convert_nscolor_to_rgba, convert_rgba_to_nscolor};
 use gecko_bindings::structs::StyleComplexColor;
 use gecko_bindings::structs::StyleComplexColor_Tag as Tag;
-use values::{Auto, Either};
-use values::computed::{Color as ComputedColor, RGBAColor as ComputedRGBA};
 use values::computed::ui::ColorOrAuto;
+use values::computed::{Color as ComputedColor, RGBAColor as ComputedRGBA};
 use values::generics::color::{Color as GenericColor, ComplexColorRatios};
+use values::{Auto, Either};
 
 impl StyleComplexColor {
     /// Create a `StyleComplexColor` value that represents `currentColor`.
diff --git a/components/style/gecko_string_cache/mod.rs b/components/style/gecko_string_cache/mod.rs
index f4941184beb..aedf065aaf4 100644
--- a/components/style/gecko_string_cache/mod.rs
+++ b/components/style/gecko_string_cache/mod.rs
@@ -17,13 +17,13 @@ use gecko_bindings::bindings::Gecko_ReleaseAtom;
 use gecko_bindings::structs::{nsAtom, nsAtom_AtomKind, nsDynamicAtom, nsStaticAtom};
 use nsstring::{nsAString, nsStr};
 use precomputed_hash::PrecomputedHash;
-use std::{mem, slice, str};
 use std::borrow::{Borrow, Cow};
 use std::char::{self, DecodeUtf16};
 use std::fmt::{self, Write};
 use std::hash::{Hash, Hasher};
 use std::iter::Cloned;
 use std::ops::Deref;
+use std::{mem, slice, str};
 use style_traits::SpecifiedValueInfo;
 
 #[macro_use]
diff --git a/components/style/invalidation/element/element_wrapper.rs b/components/style/invalidation/element/element_wrapper.rs
index cd1b1d13a25..457c8238abc 100644
--- a/components/style/invalidation/element/element_wrapper.rs
+++ b/components/style/invalidation/element/element_wrapper.rs
@@ -5,16 +5,16 @@
 //! A wrapper over an element and a snapshot, that allows us to selector-match
 //! against a past state of the element.
 
-use {Atom, CaseSensitivityExt, LocalName, Namespace, WeakAtom};
 use dom::TElement;
 use element_state::ElementState;
 use selector_parser::{AttrValue, NonTSPseudoClass, PseudoElement, SelectorImpl};
 use selector_parser::{Snapshot, SnapshotMap};
-use selectors::{Element, OpaqueElement};
 use selectors::attr::{AttrSelectorOperation, CaseSensitivity, NamespaceConstraint};
 use selectors::matching::{ElementSelectorFlags, MatchingContext};
+use selectors::{Element, OpaqueElement};
 use std::cell::Cell;
 use std::fmt;
+use {Atom, CaseSensitivityExt, LocalName, Namespace, WeakAtom};
 
 /// In order to compute restyle hints, we perform a selector match against a
 /// list of partial selectors whose rightmost simple selector may be sensitive
diff --git a/components/style/invalidation/element/invalidation_map.rs b/components/style/invalidation/element/invalidation_map.rs
index 038852a6dd4..adc6783a272 100644
--- a/components/style/invalidation/element/invalidation_map.rs
+++ b/components/style/invalidation/element/invalidation_map.rs
@@ -4,7 +4,6 @@
 
 //! Code for invalidations due to state or attribute changes.
 
-use {Atom, LocalName, Namespace};
 use context::QuirksMode;
 use element_state::{DocumentState, ElementState};
 use fallible::FallibleVec;
@@ -16,6 +15,7 @@ use selectors::parser::{Combinator, Component};
 use selectors::parser::{Selector, SelectorIter, Visit};
 use selectors::visitor::SelectorVisitor;
 use smallvec::SmallVec;
+use {Atom, LocalName, Namespace};
 
 /// Mapping between (partial) CompoundSelectors (and the combinator to their
 /// right) and the states and attributes they depend on.
diff --git a/components/style/invalidation/element/invalidator.rs b/components/style/invalidation/element/invalidator.rs
index 8d60ade88e2..4a38c0ef931 100644
--- a/components/style/invalidation/element/invalidator.rs
+++ b/components/style/invalidation/element/invalidator.rs
@@ -8,8 +8,8 @@
 use context::StackLimitChecker;
 use dom::{TElement, TNode, TShadowRoot};
 use selector_parser::SelectorImpl;
-use selectors::matching::{CompoundSelectorMatchingResult, MatchingContext};
 use selectors::matching::matches_compound_selector_from;
+use selectors::matching::{CompoundSelectorMatchingResult, MatchingContext};
 use selectors::parser::{Combinator, Component, Selector};
 use smallvec::SmallVec;
 use std::fmt;
diff --git a/components/style/invalidation/element/state_and_attributes.rs b/components/style/invalidation/element/state_and_attributes.rs
index bf259bb6f02..1de675d396e 100644
--- a/components/style/invalidation/element/state_and_attributes.rs
+++ b/components/style/invalidation/element/state_and_attributes.rs
@@ -5,7 +5,6 @@
 //! An invalidation processor for style changes due to state and attribute
 //! changes.
 
-use {Atom, WeakAtom};
 use context::SharedStyleContext;
 use data::ElementData;
 use dom::TElement;
@@ -17,12 +16,13 @@ use invalidation::element::invalidator::{Invalidation, InvalidationProcessor};
 use invalidation::element::restyle_hints::RestyleHint;
 use selector_map::SelectorMap;
 use selector_parser::Snapshot;
-use selectors::NthIndexCache;
 use selectors::attr::CaseSensitivity;
-use selectors::matching::{MatchingContext, MatchingMode, VisitedHandlingMode};
 use selectors::matching::matches_selector;
+use selectors::matching::{MatchingContext, MatchingMode, VisitedHandlingMode};
+use selectors::NthIndexCache;
 use smallvec::SmallVec;
 use stylesheets::origin::{Origin, OriginSet};
+use {Atom, WeakAtom};
 
 /// The collector implementation.
 struct Collector<'a, 'b: 'a, 'selectors: 'a, E>
diff --git a/components/style/invalidation/stylesheets.rs b/components/style/invalidation/stylesheets.rs
index 1889d325630..fac9428bc75 100644
--- a/components/style/invalidation/stylesheets.rs
+++ b/components/style/invalidation/stylesheets.rs
@@ -7,9 +7,6 @@
 
 #![deny(unsafe_code)]
 
-use Atom;
-use CaseSensitivityExt;
-use LocalName as SelectorLocalName;
 use dom::{TDocument, TElement, TNode};
 use fxhash::FxHashSet;
 use invalidation::element::element_wrapper::{ElementSnapshot, ElementWrapper};
@@ -20,6 +17,9 @@ use selectors::attr::CaseSensitivity;
 use selectors::parser::{Component, LocalName, Selector};
 use shared_lock::SharedRwLockReadGuard;
 use stylesheets::{CssRule, StylesheetInDocument};
+use Atom;
+use CaseSensitivityExt;
+use LocalName as SelectorLocalName;
 
 /// A style sheet invalidation represents a kind of element or subtree that may
 /// need to be restyled. Whether it represents a whole subtree or just a single
diff --git a/components/style/lib.rs b/components/style/lib.rs
index 7c0a78a36bc..29df16f6183 100644
--- a/components/style/lib.rs
+++ b/components/style/lib.rs
@@ -169,20 +169,20 @@ pub use gecko_string_cache as string_cache;
 #[cfg(feature = "gecko")]
 pub use gecko_string_cache::Atom;
 #[cfg(feature = "gecko")]
-pub use gecko_string_cache::Namespace;
-#[cfg(feature = "gecko")]
 pub use gecko_string_cache::Atom as Prefix;
 #[cfg(feature = "gecko")]
 pub use gecko_string_cache::Atom as LocalName;
+#[cfg(feature = "gecko")]
+pub use gecko_string_cache::Namespace;
 
 #[cfg(feature = "servo")]
-pub use servo_atoms::Atom;
-#[cfg(feature = "servo")]
-pub use html5ever::Prefix;
-#[cfg(feature = "servo")]
 pub use html5ever::LocalName;
 #[cfg(feature = "servo")]
 pub use html5ever::Namespace;
+#[cfg(feature = "servo")]
+pub use html5ever::Prefix;
+#[cfg(feature = "servo")]
+pub use servo_atoms::Atom;
 
 /// The CSS properties supported by the style system.
 /// Generated from the properties.mako.rs template by build.rs
diff --git a/components/style/logical_geometry.rs b/components/style/logical_geometry.rs
index 8c677c210bf..cae71229bbd 100644
--- a/components/style/logical_geometry.rs
+++ b/components/style/logical_geometry.rs
@@ -4,8 +4,8 @@
 
 //! Geometry in flow-relative space.
 
-use euclid::{Point2D, Rect, SideOffsets2D, Size2D};
 use euclid::num::Zero;
+use euclid::{Point2D, Rect, SideOffsets2D, Size2D};
 use properties::style_structs;
 use std::cmp::{max, min};
 use std::fmt::{self, Debug, Error, Formatter};
diff --git a/components/style/matching.rs b/components/style/matching.rs
index fd1569bea68..1b0f14feb56 100644
--- a/components/style/matching.rs
+++ b/components/style/matching.rs
@@ -12,8 +12,8 @@ use context::{SharedStyleContext, StyleContext};
 use data::ElementData;
 use dom::TElement;
 use invalidation::element::restyle_hints::RestyleHint;
-use properties::ComputedValues;
 use properties::longhands::display::computed_value::T as Display;
+use properties::ComputedValues;
 use rule_tree::{CascadeLevel, StrongRuleNode};
 use selector_parser::{PseudoElement, RestyleDamage};
 use selectors::matching::ElementSelectorFlags;
diff --git a/components/style/media_queries/media_condition.rs b/components/style/media_queries/media_condition.rs
index 78252db8c0b..af2d5a3be69 100644
--- a/components/style/media_queries/media_condition.rs
+++ b/components/style/media_queries/media_condition.rs
@@ -6,12 +6,12 @@
 //!
 //! https://drafts.csswg.org/mediaqueries-4/#typedef-media-condition
 
+use super::{Device, MediaFeatureExpression};
 use context::QuirksMode;
 use cssparser::{Parser, Token};
 use parser::ParserContext;
 use std::fmt::{self, Write};
 use style_traits::{CssWriter, ParseError, StyleParseErrorKind, ToCss};
-use super::{Device, MediaFeatureExpression};
 
 /// A binary `and` or `or` operator.
 #[derive(Clone, Copy, Debug, Eq, MallocSizeOf, Parse, PartialEq, ToCss)]
diff --git a/components/style/media_queries/media_feature.rs b/components/style/media_queries/media_feature.rs
index 771a11e8fbb..84a13c06f63 100644
--- a/components/style/media_queries/media_feature.rs
+++ b/components/style/media_queries/media_feature.rs
@@ -4,14 +4,14 @@
 
 //! Media features.
 
-use Atom;
+use super::media_feature_expression::{AspectRatio, RangeOrOperator};
+use super::Device;
 use cssparser::Parser;
 use parser::ParserContext;
 use std::fmt;
 use style_traits::ParseError;
-use super::Device;
-use super::media_feature_expression::{AspectRatio, RangeOrOperator};
 use values::computed::{CSSPixelLength, Resolution};
+use Atom;
 
 /// A generic discriminant for an enum value.
 pub type KeywordDiscriminant = u8;
diff --git a/components/style/media_queries/media_feature_expression.rs b/components/style/media_queries/media_feature_expression.rs
index 64406218e88..52292e9571b 100644
--- a/components/style/media_queries/media_feature_expression.rs
+++ b/components/style/media_queries/media_feature_expression.rs
@@ -5,24 +5,24 @@
 //! Parsing for media feature expressions, like `(foo: bar)` or
 //! `(width >= 400px)`.
 
-use Atom;
+use super::media_feature::{Evaluator, MediaFeatureDescription};
+use super::media_feature::{KeywordDiscriminant, ParsingRequirements};
+use super::Device;
 use context::QuirksMode;
 use cssparser::{Parser, Token};
 #[cfg(feature = "gecko")]
 use gecko_bindings::structs;
 use num_traits::Zero;
 use parser::{Parse, ParserContext};
-use std::cmp::{PartialOrd, Ordering};
+use std::cmp::{Ordering, PartialOrd};
 use std::fmt::{self, Write};
 use str::{starts_with_ignore_ascii_case, string_as_ascii_lowercase};
 use style_traits::{CssWriter, ParseError, StyleParseErrorKind, ToCss};
 use stylesheets::Origin;
-use super::Device;
-use super::media_feature::{Evaluator, MediaFeatureDescription};
-use super::media_feature::{ParsingRequirements, KeywordDiscriminant};
-use values::{serialize_atom_identifier, CSSFloat};
 use values::computed::{self, ToComputedValue};
 use values::specified::{Integer, Length, Number, Resolution};
+use values::{serialize_atom_identifier, CSSFloat};
+use Atom;
 
 /// An aspect ratio, with a numerator and denominator.
 #[derive(Clone, Copy, Debug, Eq, MallocSizeOf, PartialEq)]
diff --git a/components/style/media_queries/media_list.rs b/components/style/media_queries/media_list.rs
index 168671288cf..302b3db6999 100644
--- a/components/style/media_queries/media_list.rs
+++ b/components/style/media_queries/media_list.rs
@@ -6,12 +6,12 @@
 //!
 //! https://drafts.csswg.org/mediaqueries/#typedef-media-query-list
 
+use super::{Device, MediaQuery, Qualifier};
 use context::QuirksMode;
 use cssparser::{Delimiter, Parser};
 use cssparser::{ParserInput, Token};
 use error_reporting::ContextualParseError;
 use parser::ParserContext;
-use super::{Device, MediaQuery, Qualifier};
 
 /// A type that encapsulates a media query list.
 #[css(comma, derive_debug)]
diff --git a/components/style/media_queries/media_query.rs b/components/style/media_queries/media_query.rs
index fd1727fe2b2..5875b5b38ea 100644
--- a/components/style/media_queries/media_query.rs
+++ b/components/style/media_queries/media_query.rs
@@ -6,14 +6,14 @@
 //!
 //! https://drafts.csswg.org/mediaqueries/#typedef-media-query
 
-use Atom;
+use super::media_condition::MediaCondition;
 use cssparser::Parser;
 use parser::ParserContext;
 use std::fmt::{self, Write};
 use str::string_as_ascii_lowercase;
 use style_traits::{CssWriter, ParseError, ToCss};
-use super::media_condition::MediaCondition;
 use values::CustomIdent;
+use Atom;
 
 /// <https://drafts.csswg.org/mediaqueries/#mq-prefix>
 #[derive(Clone, Copy, Debug, Eq, MallocSizeOf, Parse, PartialEq, ToCss)]
diff --git a/components/style/media_queries/mod.rs b/components/style/media_queries/mod.rs
index b59ec32443d..93a5abf3b01 100644
--- a/components/style/media_queries/mod.rs
+++ b/components/style/media_queries/mod.rs
@@ -14,11 +14,11 @@ pub mod media_feature;
 pub mod media_feature_expression;
 
 pub use self::media_condition::MediaCondition;
+pub use self::media_feature_expression::MediaFeatureExpression;
 pub use self::media_list::MediaList;
 pub use self::media_query::{MediaQuery, MediaQueryType, MediaType, Qualifier};
-pub use self::media_feature_expression::MediaFeatureExpression;
 
-#[cfg(feature = "servo")]
-pub use servo::media_queries::Device;
 #[cfg(feature = "gecko")]
 pub use gecko::media_queries::Device;
+#[cfg(feature = "servo")]
+pub use servo::media_queries::Device;
diff --git a/components/style/rule_tree/mod.rs b/components/style/rule_tree/mod.rs
index 3222625749c..c1b81889289 100644
--- a/components/style/rule_tree/mod.rs
+++ b/components/style/rule_tree/mod.rs
@@ -731,9 +731,9 @@ unsafe impl Send for RuleTree {}
 #[cfg(feature = "gecko")]
 #[cfg(debug_assertions)]
 mod gecko_leak_checking {
+    use super::RuleNode;
     use std::mem::size_of;
     use std::os::raw::{c_char, c_void};
-    use super::RuleNode;
 
     extern "C" {
         pub fn NS_LogCtor(aPtr: *const c_void, aTypeName: *const c_char, aSize: u32);
diff --git a/components/style/selector_map.rs b/components/style/selector_map.rs
index 1e35f748917..d9bf0771084 100644
--- a/components/style/selector_map.rs
+++ b/components/style/selector_map.rs
@@ -5,13 +5,12 @@
 //! A data structure to efficiently index structs containing selectors by local
 //! name, ids and hash.
 
-use {Atom, LocalName, Namespace, WeakAtom};
 use applicable_declarations::ApplicableDeclarationList;
 use context::QuirksMode;
 use dom::TElement;
 use fallible::FallibleVec;
-use hash::{HashMap, HashSet};
 use hash::map as hash_map;
+use hash::{HashMap, HashSet};
 use hashglobe::FailedAllocationError;
 use precomputed_hash::PrecomputedHash;
 use rule_tree::{CascadeLevel, ShadowCascadeOrder};
@@ -21,6 +20,7 @@ use selectors::parser::{Combinator, Component, SelectorIter};
 use smallvec::SmallVec;
 use std::hash::{BuildHasherDefault, Hash, Hasher};
 use stylist::Rule;
+use {Atom, LocalName, Namespace, WeakAtom};
 
 /// A hasher implementation that doesn't hash anything, because it expects its
 /// input to be a suitable u32 hash.
diff --git a/components/style/selector_parser.rs b/components/style/selector_parser.rs
index 5d6ddbb0e3f..1bfe115c5f4 100644
--- a/components/style/selector_parser.rs
+++ b/components/style/selector_parser.rs
@@ -6,7 +6,6 @@
 
 #![deny(missing_docs)]
 
-use Atom;
 use cssparser::{Parser as CssParser, ParserInput};
 use element_state::ElementState;
 use selectors::parser::SelectorList;
@@ -14,6 +13,7 @@ use std::fmt::{self, Debug, Write};
 use style_traits::{CssWriter, ParseError, ToCss};
 use stylesheets::{Namespaces, Origin, UrlExtraData};
 use values::serialize_atom_identifier;
+use Atom;
 
 /// A convenient alias for the type that represents an attribute value used for
 /// selector parser implementation.
diff --git a/components/style/servo/media_queries.rs b/components/style/servo/media_queries.rs
index bae0aa3978b..77113e703c3 100644
--- a/components/style/servo/media_queries.rs
+++ b/components/style/servo/media_queries.rs
@@ -8,17 +8,17 @@ use app_units::Au;
 use cssparser::RGBA;
 use custom_properties::CssEnvironment;
 use euclid::{Size2D, TypedScale, TypedSize2D};
-use media_queries::MediaType;
 use media_queries::media_feature::{AllowsRanges, ParsingRequirements};
-use media_queries::media_feature::{MediaFeatureDescription, Evaluator};
+use media_queries::media_feature::{Evaluator, MediaFeatureDescription};
 use media_queries::media_feature_expression::RangeOrOperator;
+use media_queries::MediaType;
 use properties::ComputedValues;
 use std::sync::atomic::{AtomicBool, AtomicIsize, Ordering};
-use style_traits::{CSSPixel, DevicePixel};
 use style_traits::viewport::ViewportConstraints;
-use values::KeyframesName;
-use values::computed::CSSPixelLength;
+use style_traits::{CSSPixel, DevicePixel};
 use values::computed::font::FontSize;
+use values::computed::CSSPixelLength;
+use values::KeyframesName;
 
 /// A device is a structure that represents the current media a given document
 /// is displayed in.
diff --git a/components/style/servo/selector_parser.rs b/components/style/servo/selector_parser.rs
index de8257dcc4c..97fb3e29854 100644
--- a/components/style/servo/selector_parser.rs
+++ b/components/style/servo/selector_parser.rs
@@ -6,7 +6,6 @@
 
 //! Servo's selector parser.
 
-use {Atom, CaseSensitivityExt, LocalName, Namespace, Prefix};
 use attr::{AttrIdentifier, AttrValue};
 use cssparser::{serialize_identifier, CowRcStr, Parser as CssParser, SourceLocation, ToCss};
 use dom::{OpaqueNode, TElement, TNode};
@@ -14,8 +13,8 @@ use element_state::{DocumentState, ElementState};
 use fxhash::FxHashMap;
 use invalidation::element::document_state::InvalidationMatchingData;
 use invalidation::element::element_wrapper::ElementSnapshot;
-use properties::{ComputedValues, PropertyFlags};
 use properties::longhands::display::computed_value::T as Display;
+use properties::{ComputedValues, PropertyFlags};
 use selector_parser::{AttrValue as SelectorAttrValue, PseudoElementCascadeType, SelectorParser};
 use selectors::attr::{AttrSelectorOperation, CaseSensitivity, NamespaceConstraint};
 use selectors::parser::{SelectorParseErrorKind, Visit};
@@ -24,6 +23,7 @@ use std::fmt;
 use std::mem;
 use std::ops::{Deref, DerefMut};
 use style_traits::{ParseError, StyleParseErrorKind};
+use {Atom, CaseSensitivityExt, LocalName, Namespace, Prefix};
 
 /// A pseudo-element, both public and private.
 ///
@@ -348,8 +348,8 @@ impl NonTSPseudoClass {
     /// Gets a given state flag for this pseudo-class. This is used to do
     /// selector matching, and it's set from the DOM.
     pub fn state_flag(&self) -> ElementState {
-        use element_state::ElementState;
         use self::NonTSPseudoClass::*;
+        use element_state::ElementState;
         match *self {
             Active => ElementState::IN_ACTIVE_STATE,
             Focus => ElementState::IN_FOCUS_STATE,
diff --git a/components/style/sharing/mod.rs b/components/style/sharing/mod.rs
index 3a4a3635206..f4ac8f30b13 100644
--- a/components/style/sharing/mod.rs
+++ b/components/style/sharing/mod.rs
@@ -64,7 +64,6 @@
 //! selectors are effectively stripped off, so that matching them all against
 //! elements makes sense.
 
-use Atom;
 use applicable_declarations::ApplicableDeclarationBlock;
 use atomic_refcell::{AtomicRefCell, AtomicRefMut};
 use bloom::StyleBloom;
@@ -74,8 +73,8 @@ use matching::MatchMethods;
 use owning_ref::OwningHandle;
 use properties::ComputedValues;
 use rule_tree::StrongRuleNode;
-use selectors::NthIndexCache;
 use selectors::matching::{ElementSelectorFlags, VisitedHandlingMode};
+use selectors::NthIndexCache;
 use servo_arc::Arc;
 use smallbitvec::SmallBitVec;
 use smallvec::SmallVec;
@@ -86,6 +85,7 @@ use std::ptr::NonNull;
 use style_resolver::{PrimaryStyle, ResolvedElementStyles};
 use stylist::Stylist;
 use uluru::{Entry, LRUCache};
+use Atom;
 
 mod checks;
 
diff --git a/components/style/style_adjuster.rs b/components/style/style_adjuster.rs
index ab6c15029ca..0b6005197b3 100644
--- a/components/style/style_adjuster.rs
+++ b/components/style/style_adjuster.rs
@@ -7,12 +7,12 @@
 
 use app_units::Au;
 use dom::TElement;
-use properties::{self, ComputedValues, StyleBuilder};
 use properties::computed_value_flags::ComputedValueFlags;
 use properties::longhands::display::computed_value::T as Display;
 use properties::longhands::float::computed_value::T as Float;
 use properties::longhands::overflow_x::computed_value::T as Overflow;
 use properties::longhands::position::computed_value::T as Position;
+use properties::{self, ComputedValues, StyleBuilder};
 
 /// A struct that implements all the adjustment methods.
 ///
diff --git a/components/style/style_resolver.rs b/components/style/style_resolver.rs
index 0899faa9ce7..f1328858c3d 100644
--- a/components/style/style_resolver.rs
+++ b/components/style/style_resolver.rs
@@ -10,11 +10,13 @@ use data::{EagerPseudoStyles, ElementStyles};
 use dom::TElement;
 use log::Level::Trace;
 use matching::MatchMethods;
-use properties::{AnimationRules, ComputedValues};
 use properties::longhands::display::computed_value::T as Display;
+use properties::{AnimationRules, ComputedValues};
 use rule_tree::StrongRuleNode;
 use selector_parser::{PseudoElement, SelectorImpl};
-use selectors::matching::{ElementSelectorFlags, MatchingContext, MatchingMode, VisitedHandlingMode};
+use selectors::matching::{
+    ElementSelectorFlags, MatchingContext, MatchingMode, VisitedHandlingMode,
+};
 use servo_arc::Arc;
 use stylist::RuleInclusion;
 
diff --git a/components/style/stylesheets/font_feature_values_rule.rs b/components/style/stylesheets/font_feature_values_rule.rs
index f1353744f08..548b060e014 100644
--- a/components/style/stylesheets/font_feature_values_rule.rs
+++ b/components/style/stylesheets/font_feature_values_rule.rs
@@ -6,7 +6,6 @@
 //!
 //! [font-feature-values]: https://drafts.csswg.org/css-fonts-3/#at-font-feature-values-rule
 
-use Atom;
 use cssparser::{AtRuleParser, AtRuleType, BasicParseErrorKind, CowRcStr};
 use cssparser::{DeclarationListParser, DeclarationParser, Parser};
 use cssparser::{QualifiedRuleParser, RuleListParser, SourceLocation, Token};
@@ -23,6 +22,7 @@ use style_traits::{CssWriter, ParseError, StyleParseErrorKind, ToCss};
 use stylesheets::CssRuleType;
 use values::computed::font::FamilyName;
 use values::serialize_atom_identifier;
+use Atom;
 
 /// A @font-feature-values block declaration.
 /// It is `<ident>: <integer>+`.
diff --git a/components/style/stylesheets/keyframes_rule.rs b/components/style/stylesheets/keyframes_rule.rs
index f16a3363f5e..ffd41551394 100644
--- a/components/style/stylesheets/keyframes_rule.rs
+++ b/components/style/stylesheets/keyframes_rule.rs
@@ -4,23 +4,23 @@
 
 //! Keyframes: https://drafts.csswg.org/css-animations/#keyframes
 
-use cssparser::{AtRuleParser, CowRcStr, Parser, ParserInput, QualifiedRuleParser, RuleListParser};
 use cssparser::{parse_one_rule, DeclarationListParser, DeclarationParser, SourceLocation, Token};
+use cssparser::{AtRuleParser, CowRcStr, Parser, ParserInput, QualifiedRuleParser, RuleListParser};
 use error_reporting::ContextualParseError;
 use parser::ParserContext;
+use properties::longhands::transition_timing_function::single_value::SpecifiedValue as SpecifiedTimingFunction;
+use properties::LonghandIdSet;
 use properties::{Importance, PropertyDeclaration};
 use properties::{LonghandId, PropertyDeclarationBlock, PropertyId};
 use properties::{PropertyDeclarationId, SourcePropertyDeclaration};
-use properties::LonghandIdSet;
-use properties::longhands::transition_timing_function::single_value::SpecifiedValue as SpecifiedTimingFunction;
 use servo_arc::Arc;
 use shared_lock::{DeepCloneParams, DeepCloneWithLock, SharedRwLock, SharedRwLockReadGuard};
 use shared_lock::{Locked, ToCssWithGuard};
 use std::fmt::{self, Write};
 use str::CssStringWriter;
 use style_traits::{CssWriter, ParseError, ParsingMode, StyleParseErrorKind, ToCss};
-use stylesheets::{CssRuleType, StylesheetContents};
 use stylesheets::rule_parser::VendorPrefix;
+use stylesheets::{CssRuleType, StylesheetContents};
 use values::{serialize_percentage, KeyframesName};
 
 /// A [`@keyframes`][keyframes] rule.
diff --git a/components/style/stylesheets/mod.rs b/components/style/stylesheets/mod.rs
index cf0497f5c3d..9e1ae186d55 100644
--- a/components/style/stylesheets/mod.rs
+++ b/components/style/stylesheets/mod.rs
@@ -45,13 +45,13 @@ pub use self::media_rule::MediaRule;
 pub use self::namespace_rule::NamespaceRule;
 pub use self::origin::{Origin, OriginSet, OriginSetIterator, PerOrigin, PerOriginIter};
 pub use self::page_rule::PageRule;
-pub use self::rule_parser::{State, TopLevelRuleParser, InsertRuleContext};
 pub use self::rule_list::{CssRules, CssRulesHelpers};
+pub use self::rule_parser::{InsertRuleContext, State, TopLevelRuleParser};
 pub use self::rules_iterator::{AllRules, EffectiveRules};
 pub use self::rules_iterator::{NestedRuleIterationCondition, RulesIterator};
+pub use self::style_rule::StyleRule;
 pub use self::stylesheet::{DocumentStyleSheet, Namespaces, Stylesheet};
 pub use self::stylesheet::{StylesheetContents, StylesheetInDocument, UserAgentStylesheets};
-pub use self::style_rule::StyleRule;
 pub use self::supports_rule::SupportsRule;
 pub use self::viewport_rule::ViewportRule;
 
@@ -88,7 +88,7 @@ impl UrlExtraData {
 #[cfg(feature = "gecko")]
 impl fmt::Debug for UrlExtraData {
     fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-        use gecko_bindings::{structs, bindings};
+        use gecko_bindings::{bindings, structs};
 
         struct DebugURI(*mut structs::nsIURI);
         impl fmt::Debug for DebugURI {
diff --git a/components/style/stylesheets/namespace_rule.rs b/components/style/stylesheets/namespace_rule.rs
index f28f2ba0881..1f927f08f17 100644
--- a/components/style/stylesheets/namespace_rule.rs
+++ b/components/style/stylesheets/namespace_rule.rs
@@ -4,11 +4,11 @@
 
 //! The `@namespace` at-rule.
 
-use {Namespace, Prefix};
 use cssparser::SourceLocation;
 use shared_lock::{SharedRwLockReadGuard, ToCssWithGuard};
 use std::fmt::{self, Write};
 use str::CssStringWriter;
+use {Namespace, Prefix};
 
 /// A `@namespace` rule.
 #[derive(Clone, Debug, PartialEq)]
diff --git a/components/style/stylesheets/rule_list.rs b/components/style/stylesheets/rule_list.rs
index cfbf62ea721..280f879a77b 100644
--- a/components/style/stylesheets/rule_list.rs
+++ b/components/style/stylesheets/rule_list.rs
@@ -11,10 +11,10 @@ use shared_lock::{DeepCloneParams, DeepCloneWithLock, Locked};
 use shared_lock::{SharedRwLock, SharedRwLockReadGuard, ToCssWithGuard};
 use std::fmt::{self, Write};
 use str::CssStringWriter;
-use stylesheets::{CssRule, RulesMutateError};
 use stylesheets::loader::StylesheetLoader;
 use stylesheets::rule_parser::{InsertRuleContext, State};
 use stylesheets::stylesheet::StylesheetContents;
+use stylesheets::{CssRule, RulesMutateError};
 
 /// A list of CSS rules.
 #[derive(Debug)]
diff --git a/components/style/stylesheets/rule_parser.rs b/components/style/stylesheets/rule_parser.rs
index aa449c70e93..642eabd9b6a 100644
--- a/components/style/stylesheets/rule_parser.rs
+++ b/components/style/stylesheets/rule_parser.rs
@@ -4,7 +4,6 @@
 
 //! Parsing of the stylesheet contents.
 
-use {Namespace, Prefix};
 use counter_style::{parse_counter_style_body, parse_counter_style_name_definition};
 use cssparser::{AtRuleParser, AtRuleType, Parser, QualifiedRuleParser, RuleListParser};
 use cssparser::{BasicParseError, BasicParseErrorKind, CowRcStr, SourceLocation};
@@ -19,17 +18,18 @@ use servo_arc::Arc;
 use shared_lock::{Locked, SharedRwLock};
 use str::starts_with_ignore_ascii_case;
 use style_traits::{ParseError, StyleParseErrorKind};
-use stylesheets::{CssRule, CssRuleType, CssRules, RulesMutateError, StylesheetLoader};
-use stylesheets::{DocumentRule, FontFeatureValuesRule, KeyframesRule, MediaRule};
-use stylesheets::{NamespaceRule, PageRule, StyleRule, SupportsRule, ViewportRule};
 use stylesheets::document_rule::DocumentCondition;
 use stylesheets::font_feature_values_rule::parse_family_name_list;
 use stylesheets::keyframes_rule::parse_keyframe_list;
 use stylesheets::stylesheet::Namespaces;
 use stylesheets::supports_rule::SupportsCondition;
 use stylesheets::viewport_rule;
-use values::{CssUrl, CustomIdent, KeyframesName};
+use stylesheets::{CssRule, CssRuleType, CssRules, RulesMutateError, StylesheetLoader};
+use stylesheets::{DocumentRule, FontFeatureValuesRule, KeyframesRule, MediaRule};
+use stylesheets::{NamespaceRule, PageRule, StyleRule, SupportsRule, ViewportRule};
 use values::computed::font::FamilyName;
+use values::{CssUrl, CustomIdent, KeyframesName};
+use {Namespace, Prefix};
 
 /// The information we need particularly to do CSSOM insertRule stuff.
 pub struct InsertRuleContext<'a> {
diff --git a/components/style/stylesheets/rules_iterator.rs b/components/style/stylesheets/rules_iterator.rs
index eac6d2084e2..5609e75f215 100644
--- a/components/style/stylesheets/rules_iterator.rs
+++ b/components/style/stylesheets/rules_iterator.rs
@@ -9,8 +9,8 @@ use media_queries::Device;
 use shared_lock::SharedRwLockReadGuard;
 use smallvec::SmallVec;
 use std::slice;
-use stylesheets::{CssRule, DocumentRule, ImportRule, MediaRule, SupportsRule};
 use stylesheets::StylesheetInDocument;
+use stylesheets::{CssRule, DocumentRule, ImportRule, MediaRule, SupportsRule};
 
 /// An iterator over a list of rules.
 pub struct RulesIterator<'a, 'b, C>
diff --git a/components/style/stylesheets/style_rule.rs b/components/style/stylesheets/style_rule.rs
index c161cc43ee2..a017b38bdf5 100644
--- a/components/style/stylesheets/style_rule.rs
+++ b/components/style/stylesheets/style_rule.rs
@@ -6,9 +6,9 @@
 
 use cssparser::SourceLocation;
 #[cfg(feature = "gecko")]
-use malloc_size_of::{MallocSizeOf, MallocSizeOfOps};
-#[cfg(feature = "gecko")]
 use malloc_size_of::MallocUnconditionalShallowSizeOf;
+#[cfg(feature = "gecko")]
+use malloc_size_of::{MallocSizeOf, MallocSizeOfOps};
 use properties::PropertyDeclarationBlock;
 use selector_parser::SelectorImpl;
 use selectors::SelectorList;
diff --git a/components/style/stylesheets/stylesheet.rs b/components/style/stylesheets/stylesheet.rs
index ac1d810a05b..9bdc9c6834b 100644
--- a/components/style/stylesheets/stylesheet.rs
+++ b/components/style/stylesheets/stylesheet.rs
@@ -2,7 +2,6 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use {Namespace, Prefix};
 use context::QuirksMode;
 use cssparser::{Parser, ParserInput, RuleListParser};
 use error_reporting::{ContextualParseError, ParseErrorReporter};
@@ -15,16 +14,19 @@ use media_queries::{Device, MediaList};
 use parking_lot::RwLock;
 use parser::ParserContext;
 use servo_arc::Arc;
-use shared_lock::{DeepCloneParams, DeepCloneWithLock, Locked, SharedRwLock, SharedRwLockReadGuard};
+use shared_lock::{
+    DeepCloneParams, DeepCloneWithLock, Locked, SharedRwLock, SharedRwLockReadGuard,
+};
 use std::mem;
 use std::sync::atomic::{AtomicBool, Ordering};
 use style_traits::ParsingMode;
-use stylesheets::{CssRule, CssRules, Origin, UrlExtraData};
 use stylesheets::loader::StylesheetLoader;
 use stylesheets::rule_parser::{State, TopLevelRuleParser};
 use stylesheets::rules_iterator::{EffectiveRules, EffectiveRulesIterator};
 use stylesheets::rules_iterator::{NestedRuleIterationCondition, RulesIterator};
+use stylesheets::{CssRule, CssRules, Origin, UrlExtraData};
 use use_counters::UseCounters;
+use {Namespace, Prefix};
 
 /// This structure holds the user-agent and user stylesheets.
 pub struct UserAgentStylesheets {
diff --git a/components/style/stylesheets/supports_rule.rs b/components/style/stylesheets/supports_rule.rs
index 7af983541d2..a273dcb48a9 100644
--- a/components/style/stylesheets/supports_rule.rs
+++ b/components/style/stylesheets/supports_rule.rs
@@ -4,9 +4,9 @@
 
 //! [@supports rules](https://drafts.csswg.org/css-conditional-3/#at-supports)
 
+use cssparser::parse_important;
 use cssparser::{Delimiter, Parser, SourceLocation, Token};
 use cssparser::{ParseError as CssParseError, ParserInput};
-use cssparser::parse_important;
 #[cfg(feature = "gecko")]
 use malloc_size_of::{MallocSizeOfOps, MallocUnconditionalShallowSizeOf};
 use parser::ParserContext;
diff --git a/components/style/stylesheets/viewport_rule.rs b/components/style/stylesheets/viewport_rule.rs
index 16bffd14ab2..741e577229d 100644
--- a/components/style/stylesheets/viewport_rule.rs
+++ b/components/style/stylesheets/viewport_rule.rs
@@ -9,8 +9,8 @@
 
 use app_units::Au;
 use context::QuirksMode;
-use cssparser::{parse_important, AtRuleParser, DeclarationListParser, DeclarationParser, Parser};
 use cssparser::CowRcStr;
+use cssparser::{parse_important, AtRuleParser, DeclarationListParser, DeclarationParser, Parser};
 use error_reporting::ContextualParseError;
 use euclid::TypedSize2D;
 use font_metrics::get_metrics_provider_for_product;
@@ -26,8 +26,8 @@ use std::fmt::{self, Write};
 use std::iter::Enumerate;
 use std::str::Chars;
 use str::CssStringWriter;
-use style_traits::{CssWriter, ParseError, PinchZoomFactor, StyleParseErrorKind, ToCss};
 use style_traits::viewport::{Orientation, UserZoom, ViewportConstraints, Zoom};
+use style_traits::{CssWriter, ParseError, PinchZoomFactor, StyleParseErrorKind, ToCss};
 use stylesheets::{Origin, StylesheetInDocument};
 use values::computed::{Context, ToComputedValue};
 use values::specified::{LengthOrPercentageOrAuto, NoCalcLength, ViewportPercentageLength};
diff --git a/components/style/stylist.rs b/components/style/stylist.rs
index 0013248e41e..cd6ed7257e5 100644
--- a/components/style/stylist.rs
+++ b/components/style/stylist.rs
@@ -4,7 +4,6 @@
 
 //! Selector matching.
 
-use {Atom, LocalName, Namespace, WeakAtom};
 use applicable_declarations::{ApplicableDeclarationBlock, ApplicableDeclarationList};
 use context::{CascadeInputs, QuirksMode};
 use dom::{TElement, TShadowRoot};
@@ -16,9 +15,9 @@ use hashglobe::FailedAllocationError;
 use invalidation::element::invalidation_map::InvalidationMap;
 use invalidation::media_queries::{EffectiveMediaQueryResults, ToMediaListKey};
 #[cfg(feature = "gecko")]
-use malloc_size_of::{MallocShallowSizeOf, MallocSizeOf, MallocSizeOfOps};
-#[cfg(feature = "gecko")]
 use malloc_size_of::MallocUnconditionalShallowSizeOf;
+#[cfg(feature = "gecko")]
+use malloc_size_of::{MallocShallowSizeOf, MallocSizeOf, MallocSizeOfOps};
 use media_queries::Device;
 use properties::{self, CascadeMode, ComputedValues};
 use properties::{AnimationRules, PropertyDeclarationBlock};
@@ -26,14 +25,14 @@ use rule_cache::{RuleCache, RuleCacheConditions};
 use rule_tree::{CascadeLevel, RuleTree, ShadowCascadeOrder, StrongRuleNode, StyleSource};
 use selector_map::{PrecomputedHashMap, PrecomputedHashSet, SelectorMap, SelectorMapEntry};
 use selector_parser::{PerPseudoElementMap, PseudoElement, SelectorImpl, SnapshotMap};
-use selectors::NthIndexCache;
 use selectors::attr::{CaseSensitivity, NamespaceConstraint};
 use selectors::bloom::BloomFilter;
-use selectors::matching::{matches_selector, ElementSelectorFlags, MatchingContext, MatchingMode};
 use selectors::matching::VisitedHandlingMode;
+use selectors::matching::{matches_selector, ElementSelectorFlags, MatchingContext, MatchingMode};
 use selectors::parser::{AncestorHashes, Combinator, Component, Selector};
 use selectors::parser::{SelectorIter, Visit};
 use selectors::visitor::SelectorVisitor;
+use selectors::NthIndexCache;
 use servo_arc::{Arc, ArcBorrow};
 use shared_lock::{Locked, SharedRwLockReadGuard, StylesheetGuards};
 use smallbitvec::SmallBitVec;
@@ -43,14 +42,15 @@ use std::sync::Mutex;
 use style_traits::viewport::ViewportConstraints;
 use stylesheet_set::{DataValidity, DocumentStylesheetSet, SheetRebuildKind};
 use stylesheet_set::{DocumentStylesheetFlusher, SheetCollectionFlusher};
+use stylesheets::keyframes_rule::KeyframesAnimation;
+use stylesheets::viewport_rule::{self, MaybeNew, ViewportRule};
+use stylesheets::StyleRule;
+use stylesheets::StylesheetInDocument;
 #[cfg(feature = "gecko")]
 use stylesheets::{CounterStyleRule, FontFaceRule, FontFeatureValuesRule, PageRule};
 use stylesheets::{CssRule, Origin, OriginSet, PerOrigin, PerOriginIter};
-use stylesheets::StyleRule;
-use stylesheets::StylesheetInDocument;
-use stylesheets::keyframes_rule::KeyframesAnimation;
-use stylesheets::viewport_rule::{self, MaybeNew, ViewportRule};
 use thread_state::{self, ThreadState};
+use {Atom, LocalName, Namespace, WeakAtom};
 
 /// The type of the stylesheets that the stylist contains.
 #[cfg(feature = "servo")]
diff --git a/components/style/traversal.rs b/components/style/traversal.rs
index 317fe99a123..d207c196d66 100644
--- a/components/style/traversal.rs
+++ b/components/style/traversal.rs
@@ -720,8 +720,8 @@ where
     E: TElement,
 {
     use style_traits::ToCss;
-    use values::Either;
     use values::generics::image::Image;
+    use values::Either;
 
     // We speculatively evaluate any paint worklets during styling.
     // This allows us to run paint worklets in parallel with style and layout.
diff --git a/components/style/values/animated/effects.rs b/components/style/values/animated/effects.rs
index a86396506df..674a601764a 100644
--- a/components/style/values/animated/effects.rs
+++ b/components/style/values/animated/effects.rs
@@ -4,16 +4,16 @@
 
 //! Animated types for CSS values related to effects.
 
-#[cfg(not(feature = "gecko"))]
-use values::Impossible;
 use values::animated::color::Color;
-use values::computed::{Angle, Number};
 use values::computed::length::Length;
 #[cfg(feature = "gecko")]
 use values::computed::url::ComputedUrl;
+use values::computed::{Angle, Number};
 use values::generics::effects::BoxShadow as GenericBoxShadow;
 use values::generics::effects::Filter as GenericFilter;
 use values::generics::effects::SimpleShadow as GenericSimpleShadow;
+#[cfg(not(feature = "gecko"))]
+use values::Impossible;
 
 /// An animated value for a single `box-shadow`.
 pub type BoxShadow = GenericBoxShadow<Color, Length, Length, Length>;
diff --git a/components/style/values/animated/font.rs b/components/style/values/animated/font.rs
index 58da5c58258..65050ffe1da 100644
--- a/components/style/values/animated/font.rs
+++ b/components/style/values/animated/font.rs
@@ -5,8 +5,8 @@
 //! Animation implementation for various font-related types.
 
 use super::{Animate, Procedure, ToAnimatedZero};
+use values::computed::font::{FontVariationSettings, FontWeight};
 use values::computed::Number;
-use values::computed::font::{FontWeight, FontVariationSettings};
 use values::distance::{ComputeSquaredDistance, SquaredDistance};
 use values::generics::font::{FontSettings as GenericFontSettings, FontTag, VariationValue};
 
diff --git a/components/style/values/animated/length.rs b/components/style/values/animated/length.rs
index d3c6d8aa3c2..5b47103f0ea 100644
--- a/components/style/values/animated/length.rs
+++ b/components/style/values/animated/length.rs
@@ -5,10 +5,12 @@
 //! Animation implementation for various length-related types.
 
 use super::{Animate, Procedure, ToAnimatedValue, ToAnimatedZero};
+use values::computed::length::{
+    CalcLengthOrPercentage, Length, LengthOrPercentageOrAuto, LengthOrPercentageOrNone,
+};
 use values::computed::MaxLength as ComputedMaxLength;
 use values::computed::MozLength as ComputedMozLength;
 use values::computed::Percentage;
-use values::computed::length::{Length, CalcLengthOrPercentage, LengthOrPercentageOrNone, LengthOrPercentageOrAuto};
 
 /// <https://drafts.csswg.org/css-transitions/#animtype-lpcalc>
 impl Animate for CalcLengthOrPercentage {
diff --git a/components/style/values/animated/mod.rs b/components/style/values/animated/mod.rs
index ae2236928fc..707fc263c70 100644
--- a/components/style/values/animated/mod.rs
+++ b/components/style/values/animated/mod.rs
@@ -13,10 +13,10 @@ use euclid::{Point2D, Size2D};
 use properties::PropertyId;
 use smallvec::SmallVec;
 use std::cmp;
-use values::computed::Angle as ComputedAngle;
-use values::computed::BorderCornerRadius as ComputedBorderCornerRadius;
 use values::computed::length::CalcLengthOrPercentage;
 use values::computed::url::ComputedUrl;
+use values::computed::Angle as ComputedAngle;
+use values::computed::BorderCornerRadius as ComputedBorderCornerRadius;
 
 pub mod color;
 pub mod effects;
diff --git a/components/style/values/animated/svg.rs b/components/style/values/animated/svg.rs
index 4c6961de956..630a2203252 100644
--- a/components/style/values/animated/svg.rs
+++ b/components/style/values/animated/svg.rs
@@ -4,14 +4,14 @@
 
 //! Animation implementations for various SVG-related types.
 
-use properties::animated_properties::ListAnimation;
 use super::{Animate, Procedure, ToAnimatedZero};
+use properties::animated_properties::ListAnimation;
 use values::animated::color::Color as AnimatedColor;
-use values::computed::{Number, NumberOrPercentage, LengthOrPercentage};
 use values::computed::url::ComputedUrl;
+use values::computed::{LengthOrPercentage, Number, NumberOrPercentage};
 use values::distance::{ComputeSquaredDistance, SquaredDistance};
-use values::generics::svg::{SVGLength,  SvgLengthOrPercentageOrNumber, SVGPaint};
-use values::generics::svg::{SVGStrokeDashArray, SVGOpacity};
+use values::generics::svg::{SVGLength, SVGPaint, SvgLengthOrPercentageOrNumber};
+use values::generics::svg::{SVGOpacity, SVGStrokeDashArray};
 
 /// Animated SVGPaint.
 pub type IntermediateSVGPaint = SVGPaint<AnimatedColor, ComputedUrl>;
diff --git a/components/style/values/computed/angle.rs b/components/style/values/computed/angle.rs
index f46c8087309..3f697578cd5 100644
--- a/components/style/values/computed/angle.rs
+++ b/components/style/values/computed/angle.rs
@@ -5,13 +5,13 @@
 //! Computed angles.
 
 use num_traits::Zero;
-use std::{f32, f64};
 use std::f64::consts::PI;
 use std::fmt::{self, Write};
 use std::ops::Add;
+use std::{f32, f64};
 use style_traits::{CssWriter, ToCss};
-use values::CSSFloat;
 use values::distance::{ComputeSquaredDistance, SquaredDistance};
+use values::CSSFloat;
 
 /// A computed angle in degrees.
 #[cfg_attr(feature = "servo", derive(Deserialize, Serialize))]
diff --git a/components/style/values/computed/background.rs b/components/style/values/computed/background.rs
index e94bece983e..78b9a92a9d0 100644
--- a/components/style/values/computed/background.rs
+++ b/components/style/values/computed/background.rs
@@ -6,8 +6,8 @@
 
 use std::fmt::{self, Write};
 use style_traits::{CssWriter, ToCss};
-use values::computed::{Context, ToComputedValue};
 use values::computed::length::NonNegativeLengthOrPercentageOrAuto;
+use values::computed::{Context, ToComputedValue};
 use values::generics::background::BackgroundSize as GenericBackgroundSize;
 use values::specified::background::BackgroundRepeat as SpecifiedBackgroundRepeat;
 use values::specified::background::BackgroundRepeatKeyword;
diff --git a/components/style/values/computed/basic_shape.rs b/components/style/values/computed/basic_shape.rs
index e0409a9d904..9c6cdb66260 100644
--- a/components/style/values/computed/basic_shape.rs
+++ b/components/style/values/computed/basic_shape.rs
@@ -9,8 +9,8 @@
 
 use std::fmt::{self, Write};
 use style_traits::{CssWriter, ToCss};
-use values::computed::{Image, LengthOrPercentage};
 use values::computed::url::ComputedUrl;
+use values::computed::{Image, LengthOrPercentage};
 use values::generics::basic_shape as generic;
 
 /// A computed alias for FillRule.
diff --git a/components/style/values/computed/border.rs b/components/style/values/computed/border.rs
index 8c54aeba43b..9a92175d978 100644
--- a/components/style/values/computed/border.rs
+++ b/components/style/values/computed/border.rs
@@ -6,8 +6,8 @@
 
 use app_units::Au;
 use values::animated::ToAnimatedZero;
-use values::computed::{Number, NumberOrPercentage};
 use values::computed::length::{LengthOrPercentage, NonNegativeLength};
+use values::computed::{Number, NumberOrPercentage};
 use values::generics::border::BorderCornerRadius as GenericBorderCornerRadius;
 use values::generics::border::BorderImageSideWidth as GenericBorderImageSideWidth;
 use values::generics::border::BorderImageSlice as GenericBorderImageSlice;
diff --git a/components/style/values/computed/box.rs b/components/style/values/computed/box.rs
index 002583b2c21..3e219305eff 100644
--- a/components/style/values/computed/box.rs
+++ b/components/style/values/computed/box.rs
@@ -4,8 +4,8 @@
 
 //! Computed types for box properties.
 
-use values::computed::{Context, Number, ToComputedValue};
 use values::computed::length::{LengthOrPercentage, NonNegativeLength};
+use values::computed::{Context, Number, ToComputedValue};
 use values::generics::box_::AnimationIterationCount as GenericAnimationIterationCount;
 use values::generics::box_::Perspective as GenericPerspective;
 use values::generics::box_::VerticalAlign as GenericVerticalAlign;
@@ -13,7 +13,9 @@ use values::specified::box_ as specified;
 
 pub use values::specified::box_::{AnimationName, Appearance, Contain, Display, OverflowClipBox};
 pub use values::specified::box_::{Clear as SpecifiedClear, Float as SpecifiedFloat};
-pub use values::specified::box_::{OverscrollBehavior, ScrollSnapType, TouchAction, TransitionProperty, WillChange};
+pub use values::specified::box_::{
+    OverscrollBehavior, ScrollSnapType, TouchAction, TransitionProperty, WillChange,
+};
 
 /// A computed value for the `vertical-align` property.
 pub type VerticalAlign = GenericVerticalAlign<LengthOrPercentage>;
diff --git a/components/style/values/computed/color.rs b/components/style/values/computed/color.rs
index 5effffe5966..6d0713ac1d4 100644
--- a/components/style/values/computed/color.rs
+++ b/components/style/values/computed/color.rs
@@ -7,8 +7,8 @@
 use cssparser::{Color as CSSParserColor, RGBA};
 use std::fmt;
 use style_traits::{CssWriter, ToCss};
-use values::animated::ToAnimatedValue;
 use values::animated::color::RGBA as AnimatedRGBA;
+use values::animated::ToAnimatedValue;
 use values::generics::color::Color as GenericColor;
 
 /// Computed value type for the specified RGBAColor.
diff --git a/components/style/values/computed/effects.rs b/components/style/values/computed/effects.rs
index b7e8315a6ac..9a511c4fd89 100644
--- a/components/style/values/computed/effects.rs
+++ b/components/style/values/computed/effects.rs
@@ -4,16 +4,16 @@
 
 //! Computed types for CSS values related to effects.
 
-#[cfg(not(feature = "gecko"))]
-use values::Impossible;
-use values::computed::{Angle, NonNegativeNumber};
 use values::computed::color::Color;
 use values::computed::length::{Length, NonNegativeLength};
 #[cfg(feature = "gecko")]
 use values::computed::url::ComputedUrl;
+use values::computed::{Angle, NonNegativeNumber};
 use values::generics::effects::BoxShadow as GenericBoxShadow;
 use values::generics::effects::Filter as GenericFilter;
 use values::generics::effects::SimpleShadow as GenericSimpleShadow;
+#[cfg(not(feature = "gecko"))]
+use values::Impossible;
 
 /// A computed value for a single shadow of the `box-shadow` property.
 pub type BoxShadow = GenericBoxShadow<Color, Length, NonNegativeLength, Length>;
diff --git a/components/style/values/computed/font.rs b/components/style/values/computed/font.rs
index e83f4b3f6b8..27a8fad133d 100644
--- a/components/style/values/computed/font.rs
+++ b/components/style/values/computed/font.rs
@@ -4,28 +4,28 @@
 
 //! Computed values for font properties
 
-use Atom;
 use app_units::Au;
 use byteorder::{BigEndian, ByteOrder};
 use cssparser::{serialize_identifier, CssStringWriter, Parser};
 #[cfg(feature = "gecko")]
-use gecko_bindings::{bindings, structs};
-#[cfg(feature = "gecko")]
 use gecko_bindings::sugar::refptr::RefPtr;
 #[cfg(feature = "gecko")]
+use gecko_bindings::{bindings, structs};
+#[cfg(feature = "gecko")]
 use malloc_size_of::{MallocSizeOf, MallocSizeOfOps};
 use std::fmt::{self, Write};
 use std::hash::{Hash, Hasher};
 #[cfg(feature = "servo")]
 use std::slice;
 use style_traits::{CssWriter, ParseError, ToCss};
-use values::CSSFloat;
 use values::animated::{ToAnimatedValue, ToAnimatedZero};
 use values::computed::{Angle, Context, Integer, NonNegativeLength, NonNegativePercentage};
 use values::computed::{Number, Percentage, ToComputedValue};
 use values::generics::font::{self as generics, FeatureTagValue, FontSettings, VariationValue};
-use values::specified::font::{self as specified, MIN_FONT_WEIGHT, MAX_FONT_WEIGHT};
+use values::specified::font::{self as specified, MAX_FONT_WEIGHT, MIN_FONT_WEIGHT};
 use values::specified::length::{FontBaseSize, NoCalcLength};
+use values::CSSFloat;
+use Atom;
 
 pub use values::computed::Length as MozScriptMinSize;
 pub use values::specified::font::{FontSynthesis, MozScriptSizeMultiplier, XLang, XTextZoom};
diff --git a/components/style/values/computed/image.rs b/components/style/values/computed/image.rs
index 91e55c39910..c89871f6cfb 100644
--- a/components/style/values/computed/image.rs
+++ b/components/style/values/computed/image.rs
@@ -10,16 +10,16 @@
 use std::f32::consts::PI;
 use std::fmt::{self, Write};
 use style_traits::{CssWriter, ToCss};
-use values::{Either, None_};
-use values::computed::{Angle, Color, Context};
-use values::computed::{Length, LengthOrPercentage, NumberOrPercentage, ToComputedValue};
-#[cfg(feature = "gecko")]
-use values::computed::Percentage;
 use values::computed::position::Position;
 use values::computed::url::ComputedImageUrl;
+#[cfg(feature = "gecko")]
+use values::computed::Percentage;
+use values::computed::{Angle, Color, Context};
+use values::computed::{Length, LengthOrPercentage, NumberOrPercentage, ToComputedValue};
 use values::generics::image::{self as generic, CompatMode};
 use values::specified::image::LineDirection as SpecifiedLineDirection;
 use values::specified::position::{X, Y};
+use values::{Either, None_};
 
 /// A computed image layer.
 pub type ImageLayer = Either<None_, Image>;
diff --git a/components/style/values/computed/length.rs b/components/style/values/computed/length.rs
index ff41f2c37ba..10e1f211db3 100644
--- a/components/style/values/computed/length.rs
+++ b/components/style/values/computed/length.rs
@@ -4,20 +4,20 @@
 
 //! `<length>` computed values, and related ones.
 
+use super::{Context, Number, Percentage, ToComputedValue};
 use app_units::Au;
 use ordered_float::NotNan;
 use std::fmt::{self, Write};
 use std::ops::{Add, Neg};
-use style_traits::{CssWriter, ToCss};
 use style_traits::values::specified::AllowedNumericType;
-use super::{Context, Number, Percentage, ToComputedValue};
-use values::{specified, Auto, CSSFloat, Either, Normal};
+use style_traits::{CssWriter, ToCss};
 use values::animated::{Animate, Procedure, ToAnimatedValue, ToAnimatedZero};
 use values::distance::{ComputeSquaredDistance, SquaredDistance};
-use values::generics::NonNegative;
 use values::generics::length::{MaxLength as GenericMaxLength, MozLength as GenericMozLength};
-use values::specified::length::{AbsoluteLength, FontBaseSize, FontRelativeLength};
+use values::generics::NonNegative;
 use values::specified::length::ViewportPercentageLength;
+use values::specified::length::{AbsoluteLength, FontBaseSize, FontRelativeLength};
+use values::{specified, Auto, CSSFloat, Either, Normal};
 
 pub use super::image::Image;
 pub use values::specified::url::UrlOrNone;
diff --git a/components/style/values/computed/list.rs b/components/style/values/computed/list.rs
index 84136007711..bd3930fa8de 100644
--- a/components/style/values/computed/list.rs
+++ b/components/style/values/computed/list.rs
@@ -4,9 +4,9 @@
 
 //! `list` computed values.
 
-pub use values::specified::list::Quotes;
 #[cfg(feature = "gecko")]
 pub use values::specified::list::ListStyleType;
+pub use values::specified::list::Quotes;
 
 impl Quotes {
     /// Initial value for `quotes`.
diff --git a/components/style/values/computed/mod.rs b/components/style/values/computed/mod.rs
index 8b9a33f0df2..a5c83eb43e0 100644
--- a/components/style/values/computed/mod.rs
+++ b/components/style/values/computed/mod.rs
@@ -4,9 +4,13 @@
 
 //! Computed values.
 
-use Atom;
-#[cfg(feature = "servo")]
-use Prefix;
+use super::animated::ToAnimatedValue;
+use super::generics::grid::GridTemplateComponent as GenericGridTemplateComponent;
+use super::generics::grid::{GridLine as GenericGridLine, TrackBreadth as GenericTrackBreadth};
+use super::generics::grid::{TrackList as GenericTrackList, TrackSize as GenericTrackSize};
+use super::generics::{GreaterThanOrEqualToOne, NonNegative};
+use super::specified;
+use super::{CSSFloat, CSSInteger};
 use context::QuirksMode;
 use euclid::Size2D;
 use font_metrics::{get_metrics_provider_for_product, FontMetricsProvider};
@@ -19,17 +23,12 @@ use std::cell::RefCell;
 use std::cmp;
 use std::f32;
 use std::fmt::{self, Write};
-use style_traits::{CssWriter, ToCss};
 use style_traits::cursor::CursorKind;
-use super::{CSSFloat, CSSInteger};
-use super::animated::ToAnimatedValue;
-use super::generics::{GreaterThanOrEqualToOne, NonNegative};
-use super::generics::grid::{GridLine as GenericGridLine, TrackBreadth as GenericTrackBreadth};
-use super::generics::grid::{TrackList as GenericTrackList, TrackSize as GenericTrackSize};
-use super::generics::grid::GridTemplateComponent as GenericGridTemplateComponent;
-use super::specified;
+use style_traits::{CssWriter, ToCss};
+use Atom;
+#[cfg(feature = "servo")]
+use Prefix;
 
-pub use app_units::Au;
 #[cfg(feature = "gecko")]
 pub use self::align::{AlignContent, AlignItems, JustifyContent, JustifyItems, SelfAlignment};
 #[cfg(feature = "gecko")]
@@ -37,13 +36,13 @@ pub use self::align::{AlignSelf, JustifySelf};
 pub use self::angle::Angle;
 pub use self::background::{BackgroundRepeat, BackgroundSize};
 pub use self::basic_shape::FillRule;
-pub use self::border::{BorderImageRepeat, BorderImageSideWidth, BorderImageSlice, BorderImageWidth};
 pub use self::border::{BorderCornerRadius, BorderRadius, BorderSpacing};
-pub use self::font::{FontSize, FontSizeAdjust, FontStretch, FontSynthesis, FontVariantAlternates, FontWeight};
-pub use self::font::{FontFamily, FontLanguageOverride, FontStyle, FontVariantEastAsian, FontVariationSettings};
-pub use self::font::{FontFeatureSettings, FontVariantLigatures, FontVariantNumeric};
-pub use self::font::{MozScriptLevel, MozScriptMinSize, MozScriptSizeMultiplier, XLang, XTextZoom};
-pub use self::box_::{AnimationIterationCount, AnimationName, Contain, Display, TransitionProperty};
+pub use self::border::{
+    BorderImageRepeat, BorderImageSideWidth, BorderImageSlice, BorderImageWidth,
+};
+pub use self::box_::{
+    AnimationIterationCount, AnimationName, Contain, Display, TransitionProperty,
+};
 pub use self::box_::{Appearance, Clear, Float};
 pub use self::box_::{OverflowClipBox, OverscrollBehavior, Perspective, Resize};
 pub use self::box_::{ScrollSnapType, TouchAction, VerticalAlign, WillChange};
@@ -53,36 +52,47 @@ pub use self::counters::{Content, ContentItem, CounterIncrement, CounterReset};
 pub use self::easing::TimingFunction;
 pub use self::effects::{BoxShadow, Filter, SimpleShadow};
 pub use self::flex::FlexBasis;
-pub use self::image::{Gradient, GradientItem, Image, ImageLayer, LineDirection, MozImageRect};
+pub use self::font::{
+    FontFamily, FontLanguageOverride, FontStyle, FontVariantEastAsian, FontVariationSettings,
+};
+pub use self::font::{FontFeatureSettings, FontVariantLigatures, FontVariantNumeric};
+pub use self::font::{
+    FontSize, FontSizeAdjust, FontStretch, FontSynthesis, FontVariantAlternates, FontWeight,
+};
+pub use self::font::{MozScriptLevel, MozScriptMinSize, MozScriptSizeMultiplier, XLang, XTextZoom};
 #[cfg(feature = "gecko")]
 pub use self::gecko::ScrollSnapPoint;
-pub use self::rect::LengthOrNumberRect;
-pub use self::resolution::Resolution;
-pub use super::{Auto, Either, None_};
-pub use super::specified::{BorderStyle, TextDecorationLine};
+pub use self::image::{Gradient, GradientItem, Image, ImageLayer, LineDirection, MozImageRect};
+pub use self::length::{CSSPixelLength, ExtremumLength, NonNegativeLength};
 pub use self::length::{CalcLengthOrPercentage, Length, LengthOrNumber, LengthOrPercentage};
 pub use self::length::{LengthOrPercentageOrAuto, LengthOrPercentageOrNone, MaxLength, MozLength};
-pub use self::length::{CSSPixelLength, ExtremumLength, NonNegativeLength};
 pub use self::length::{NonNegativeLengthOrPercentage, NonNegativeLengthOrPercentageOrAuto};
-pub use self::list::Quotes;
 #[cfg(feature = "gecko")]
 pub use self::list::ListStyleType;
+pub use self::list::Quotes;
 pub use self::motion::OffsetPath;
 pub use self::outline::OutlineStyle;
-pub use self::percentage::{Percentage, NonNegativePercentage};
+pub use self::percentage::{NonNegativePercentage, Percentage};
 pub use self::position::{GridAutoFlow, GridTemplateAreas, Position, ZIndex};
+pub use self::rect::LengthOrNumberRect;
+pub use self::resolution::Resolution;
+pub use self::svg::MozContextProperties;
 pub use self::svg::{SVGLength, SVGOpacity, SVGPaint, SVGPaintKind};
 pub use self::svg::{SVGPaintOrder, SVGStrokeDashArray, SVGWidth};
-pub use self::svg::MozContextProperties;
 pub use self::table::XSpan;
 pub use self::text::{InitialLetter, LetterSpacing, LineHeight, MozTabSize};
-pub use self::text::{TextAlign, TextEmphasisPosition, TextEmphasisStyle, TextOverflow, WordSpacing};
+pub use self::text::{
+    TextAlign, TextEmphasisPosition, TextEmphasisStyle, TextOverflow, WordSpacing,
+};
 pub use self::time::Time;
 pub use self::transform::{Rotate, Scale, Transform, TransformOperation};
 pub use self::transform::{TransformOrigin, TransformStyle, Translate};
-pub use self::ui::{ColorOrAuto, Cursor, MozForceBrokenImageIcon};
 #[cfg(feature = "gecko")]
 pub use self::ui::CursorImage;
+pub use self::ui::{ColorOrAuto, Cursor, MozForceBrokenImageIcon};
+pub use super::specified::{BorderStyle, TextDecorationLine};
+pub use super::{Auto, Either, None_};
+pub use app_units::Au;
 
 #[cfg(feature = "gecko")]
 pub mod align;
diff --git a/components/style/values/computed/percentage.rs b/components/style/values/computed/percentage.rs
index e7f038f4bef..9f5cd02abbe 100644
--- a/components/style/values/computed/percentage.rs
+++ b/components/style/values/computed/percentage.rs
@@ -6,9 +6,9 @@
 
 use std::fmt;
 use style_traits::{CssWriter, ToCss};
-use values::{serialize_percentage, CSSFloat};
 use values::animated::ToAnimatedValue;
 use values::generics::NonNegative;
+use values::{serialize_percentage, CSSFloat};
 
 /// A computed percentage.
 #[cfg_attr(feature = "servo", derive(Deserialize, Serialize))]
diff --git a/components/style/values/computed/resolution.rs b/components/style/values/computed/resolution.rs
index d90bdf4867d..9d743f9cbf3 100644
--- a/components/style/values/computed/resolution.rs
+++ b/components/style/values/computed/resolution.rs
@@ -8,9 +8,9 @@
 
 use std::fmt::{self, Write};
 use style_traits::{CssWriter, ToCss};
-use values::CSSFloat;
 use values::computed::{Context, ToComputedValue};
 use values::specified;
+use values::CSSFloat;
 
 /// A computed `<resolution>`.
 pub struct Resolution(CSSFloat);
diff --git a/components/style/values/computed/svg.rs b/components/style/values/computed/svg.rs
index 778292a6735..dd9cfb03b4b 100644
--- a/components/style/values/computed/svg.rs
+++ b/components/style/values/computed/svg.rs
@@ -4,11 +4,13 @@
 
 //! Computed types for SVG properties.
 
-use values::RGBA;
-use values::computed::{NonNegativeLengthOrPercentage, NonNegativeNumber, Number, LengthOrPercentage, Opacity};
 use values::computed::color::Color;
 use values::computed::url::ComputedUrl;
+use values::computed::{
+    LengthOrPercentage, NonNegativeLengthOrPercentage, NonNegativeNumber, Number, Opacity,
+};
 use values::generics::svg as generic;
+use values::RGBA;
 
 pub use values::specified::SVGPaintOrder;
 
diff --git a/components/style/values/computed/text.rs b/components/style/values/computed/text.rs
index b41ecdb7e67..f8443ec607a 100644
--- a/components/style/values/computed/text.rs
+++ b/components/style/values/computed/text.rs
@@ -8,14 +8,14 @@
 use properties::StyleBuilder;
 use std::fmt::{self, Write};
 use style_traits::{CssWriter, ToCss};
-use values::{CSSFloat, CSSInteger};
-use values::computed::{NonNegativeLength, NonNegativeNumber};
 use values::computed::length::{Length, LengthOrPercentage};
+use values::computed::{NonNegativeLength, NonNegativeNumber};
 use values::generics::text::InitialLetter as GenericInitialLetter;
 use values::generics::text::LineHeight as GenericLineHeight;
 use values::generics::text::MozTabSize as GenericMozTabSize;
 use values::generics::text::Spacing;
 use values::specified::text::{TextEmphasisFillMode, TextEmphasisShapeKeyword, TextOverflowSide};
+use values::{CSSFloat, CSSInteger};
 
 pub use values::specified::TextAlignKeyword as TextAlign;
 pub use values::specified::TextEmphasisPosition;
diff --git a/components/style/values/computed/transform.rs b/components/style/values/computed/transform.rs
index 33c55d8a1e2..9590ad4025f 100644
--- a/components/style/values/computed/transform.rs
+++ b/components/style/values/computed/transform.rs
@@ -4,9 +4,9 @@
 
 //! Computed types for CSS values that are related to transformations.
 
+use super::CSSFloat;
 use euclid::{Transform3D, Vector3D};
 use num_traits::Zero;
-use super::CSSFloat;
 use values::animated::ToAnimatedZero;
 use values::computed::{Angle, Integer, Length, LengthOrPercentage, Number, Percentage};
 use values::generics::transform as generic;
diff --git a/components/style/values/computed/ui.rs b/components/style/values/computed/ui.rs
index 40f1a378cc9..cf1d953fd26 100644
--- a/components/style/values/computed/ui.rs
+++ b/components/style/values/computed/ui.rs
@@ -4,11 +4,11 @@
 
 //! Computed values for UI properties
 
-use values::{Auto, Either};
-use values::computed::Number;
 use values::computed::color::Color;
 use values::computed::url::ComputedImageUrl;
+use values::computed::Number;
 use values::generics::ui as generics;
+use values::{Auto, Either};
 
 pub use values::specified::ui::MozForceBrokenImageIcon;
 
diff --git a/components/style/values/computed/url.rs b/components/style/values/computed/url.rs
index cf957710182..aca5d301fd2 100644
--- a/components/style/values/computed/url.rs
+++ b/components/style/values/computed/url.rs
@@ -6,10 +6,10 @@
 
 use values::generics::url::UrlOrNone as GenericUrlOrNone;
 
-#[cfg(feature = "servo")]
-pub use servo::url::{ComputedImageUrl, ComputedUrl};
 #[cfg(feature = "gecko")]
 pub use gecko::url::{ComputedImageUrl, ComputedUrl};
+#[cfg(feature = "servo")]
+pub use servo::url::{ComputedImageUrl, ComputedUrl};
 
 /// Computed <url> | <none>
 pub type UrlOrNone = GenericUrlOrNone<ComputedUrl>;
diff --git a/components/style/values/generics/counters.rs b/components/style/values/generics/counters.rs
index 4bbf728d457..a5990691336 100644
--- a/components/style/values/generics/counters.rs
+++ b/components/style/values/generics/counters.rs
@@ -7,11 +7,11 @@
 #[cfg(feature = "servo")]
 use computed_values::list_style_type::T as ListStyleType;
 use std::ops::Deref;
-use values::CustomIdent;
 #[cfg(feature = "gecko")]
 use values::generics::CounterStyleOrNone;
 #[cfg(feature = "gecko")]
 use values::specified::Attr;
+use values::CustomIdent;
 
 /// A name / value pair for counters.
 #[derive(Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToCss)]
diff --git a/components/style/values/generics/grid.rs b/components/style/values/generics/grid.rs
index 13c7fa54200..fda0c3a0759 100644
--- a/components/style/values/generics/grid.rs
+++ b/components/style/values/generics/grid.rs
@@ -7,13 +7,13 @@
 
 use cssparser::Parser;
 use parser::{Parse, ParserContext};
-use std::{mem, usize};
 use std::fmt::{self, Write};
+use std::{mem, usize};
 use style_traits::{CssWriter, ParseError, StyleParseErrorKind, ToCss};
-use values::{CSSFloat, CustomIdent};
 use values::computed::{Context, ToComputedValue};
 use values::specified;
 use values::specified::grid::parse_line_names;
+use values::{CSSFloat, CustomIdent};
 
 /// A `<grid-line>` type.
 ///
diff --git a/components/style/values/generics/image.rs b/components/style/values/generics/image.rs
index 16d348ac47e..9ce60d3362c 100644
--- a/components/style/values/generics/image.rs
+++ b/components/style/values/generics/image.rs
@@ -6,12 +6,12 @@
 //!
 //! [images]: https://drafts.csswg.org/css-images/#image-values
 
-use Atom;
 use custom_properties;
 use servo_arc::Arc;
 use std::fmt::{self, Write};
 use style_traits::{CssWriter, ToCss};
 use values::serialize_atom_identifier;
+use Atom;
 
 /// An [image].
 ///
diff --git a/components/style/values/generics/mod.rs b/components/style/values/generics/mod.rs
index 712b62679d8..0f13cfcdd2f 100644
--- a/components/style/values/generics/mod.rs
+++ b/components/style/values/generics/mod.rs
@@ -5,12 +5,12 @@
 //! Generic types that share their serialization implementations
 //! for both specified and computed values.
 
+use super::CustomIdent;
 use counter_style::{parse_counter_style_name, Symbols};
 use cssparser::Parser;
 use parser::{Parse, ParserContext};
 use style_traits::{KeywordsCollectFn, ParseError};
 use style_traits::{SpecifiedValueInfo, StyleParseErrorKind};
-use super::CustomIdent;
 
 pub mod background;
 pub mod basic_shape;
diff --git a/components/style/values/generics/transform.rs b/components/style/values/generics/transform.rs
index 7a3eaead1cb..b4d011fd682 100644
--- a/components/style/values/generics/transform.rs
+++ b/components/style/values/generics/transform.rs
@@ -7,12 +7,12 @@
 use app_units::Au;
 use euclid::{self, Rect, Transform3D};
 use num_traits::Zero;
-use values::{computed, CSSFloat};
 use values::computed::length::Length as ComputedLength;
 use values::computed::length::LengthOrPercentage as ComputedLengthOrPercentage;
 use values::specified::angle::Angle as SpecifiedAngle;
 use values::specified::length::Length as SpecifiedLength;
 use values::specified::length::LengthOrPercentage as SpecifiedLengthOrPercentage;
+use values::{computed, CSSFloat};
 
 /// A generic 2D transformation matrix.
 #[allow(missing_docs)]
diff --git a/components/style/values/generics/ui.rs b/components/style/values/generics/ui.rs
index 2154c42f5d6..c959ad73e51 100644
--- a/components/style/values/generics/ui.rs
+++ b/components/style/values/generics/ui.rs
@@ -5,8 +5,8 @@
 //! Generic values for UI properties.
 
 use std::fmt::{self, Write};
-use style_traits::{CssWriter, ToCss};
 use style_traits::cursor::CursorKind;
+use style_traits::{CssWriter, ToCss};
 
 /// A generic value for the `cursor` property.
 ///
diff --git a/components/style/values/mod.rs b/components/style/values/mod.rs
index d3ae6a83971..f182477e374 100644
--- a/components/style/values/mod.rs
+++ b/components/style/values/mod.rs
@@ -8,19 +8,21 @@
 
 #![deny(missing_docs)]
 
-use Atom;
-pub use cssparser::{serialize_identifier, serialize_name, CowRcStr, Parser, SourceLocation, Token, RGBA};
+pub use cssparser::{
+    serialize_identifier, serialize_name, CowRcStr, Parser, SourceLocation, Token, RGBA,
+};
 use parser::{Parse, ParserContext};
 use selectors::parser::SelectorParseErrorKind;
 use std::fmt::{self, Debug, Write};
 use std::hash;
 use style_traits::{CssWriter, ParseError, StyleParseErrorKind, ToCss};
 use values::distance::{ComputeSquaredDistance, SquaredDistance};
+use Atom;
 
-#[cfg(feature = "servo")]
-pub use servo::url::CssUrl;
 #[cfg(feature = "gecko")]
 pub use gecko::url::CssUrl;
+#[cfg(feature = "servo")]
+pub use servo::url::CssUrl;
 
 pub mod animated;
 pub mod computed;
diff --git a/components/style/values/specified/angle.rs b/components/style/values/specified/angle.rs
index 5d1740c6991..01c86aab180 100644
--- a/components/style/values/specified/angle.rs
+++ b/components/style/values/specified/angle.rs
@@ -9,10 +9,10 @@ use parser::{Parse, ParserContext};
 use std::f32::consts::PI;
 use std::fmt::{self, Write};
 use style_traits::{CssWriter, ParseError, SpecifiedValueInfo, ToCss};
-use values::CSSFloat;
-use values::computed::{Context, ToComputedValue};
 use values::computed::angle::Angle as ComputedAngle;
+use values::computed::{Context, ToComputedValue};
 use values::specified::calc::CalcNode;
+use values::CSSFloat;
 
 /// A specified angle dimension.
 #[cfg_attr(feature = "servo", derive(Deserialize, Serialize))]
diff --git a/components/style/values/specified/basic_shape.rs b/components/style/values/specified/basic_shape.rs
index 64bd362f748..9470311b7a9 100644
--- a/components/style/values/specified/basic_shape.rs
+++ b/components/style/values/specified/basic_shape.rs
@@ -17,13 +17,13 @@ use values::generics::basic_shape as generic;
 use values::generics::basic_shape::{GeometryBox, Path, PolygonCoord};
 use values::generics::basic_shape::{ShapeBox, ShapeSource};
 use values::generics::rect::Rect;
-use values::specified::LengthOrPercentage;
-use values::specified::SVGPathData;
 use values::specified::border::BorderRadius;
 use values::specified::image::Image;
 use values::specified::position::{HorizontalPosition, Position, PositionComponent};
 use values::specified::position::{Side, VerticalPosition};
 use values::specified::url::SpecifiedUrl;
+use values::specified::LengthOrPercentage;
+use values::specified::SVGPathData;
 
 /// A specified alias for FillRule.
 pub use values::generics::basic_shape::FillRule;
diff --git a/components/style/values/specified/border.rs b/components/style/values/specified/border.rs
index 2f4d3548351..27f403c4a28 100644
--- a/components/style/values/specified/border.rs
+++ b/components/style/values/specified/border.rs
@@ -16,8 +16,8 @@ use values::generics::border::BorderRadius as GenericBorderRadius;
 use values::generics::border::BorderSpacing as GenericBorderSpacing;
 use values::generics::rect::Rect;
 use values::generics::size::Size;
-use values::specified::{AllowQuirks, Number, NumberOrPercentage};
 use values::specified::length::{Length, LengthOrPercentage, NonNegativeLength};
+use values::specified::{AllowQuirks, Number, NumberOrPercentage};
 
 /// A specified value for a single side of the `border-width` property.
 #[derive(Clone, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToCss)]
diff --git a/components/style/values/specified/box.rs b/components/style/values/specified/box.rs
index 7e79fc892a5..589d0b13d0c 100644
--- a/components/style/values/specified/box.rs
+++ b/components/style/values/specified/box.rs
@@ -4,20 +4,22 @@
 
 //! Specified types for box properties.
 
-use Atom;
 use cssparser::Parser;
 use custom_properties::Name as CustomPropertyName;
 use parser::{Parse, ParserContext};
-use properties::{LonghandId, ShorthandId, PropertyId, PropertyFlags, PropertyDeclarationId};
+use properties::{LonghandId, PropertyDeclarationId, PropertyFlags, PropertyId, ShorthandId};
 use selectors::parser::SelectorParseErrorKind;
 use std::fmt::{self, Write};
-use style_traits::{CssWriter, KeywordsCollectFn, ParseError, StyleParseErrorKind, SpecifiedValueInfo, ToCss};
-use values::{CustomIdent, KeyframesName};
+use style_traits::{
+    CssWriter, KeywordsCollectFn, ParseError, SpecifiedValueInfo, StyleParseErrorKind, ToCss,
+};
 use values::generics::box_::AnimationIterationCount as GenericAnimationIterationCount;
 use values::generics::box_::Perspective as GenericPerspective;
 use values::generics::box_::VerticalAlign as GenericVerticalAlign;
-use values::specified::{AllowQuirks, Number};
 use values::specified::length::{LengthOrPercentage, NonNegativeLength};
+use values::specified::{AllowQuirks, Number};
+use values::{CustomIdent, KeyframesName};
+use Atom;
 
 fn in_ua_or_chrome_sheet(context: &ParserContext) -> bool {
     use stylesheets::Origin;
diff --git a/components/style/values/specified/calc.rs b/components/style/values/specified/calc.rs
index 0bb8abc62aa..6a0f54b3926 100644
--- a/components/style/values/specified/calc.rs
+++ b/components/style/values/specified/calc.rs
@@ -9,13 +9,13 @@
 use cssparser::{AngleOrNumber, NumberOrPercentage, Parser, Token};
 use parser::ParserContext;
 use std::fmt::{self, Write};
-use style_traits::{CssWriter, ParseError, SpecifiedValueInfo, StyleParseErrorKind, ToCss};
 use style_traits::values::specified::AllowedNumericType;
-use values::{CSSFloat, CSSInteger};
+use style_traits::{CssWriter, ParseError, SpecifiedValueInfo, StyleParseErrorKind, ToCss};
 use values::computed;
-use values::specified::{Angle, Time};
-use values::specified::length::{AbsoluteLength, FontRelativeLength, NoCalcLength};
 use values::specified::length::ViewportPercentageLength;
+use values::specified::length::{AbsoluteLength, FontRelativeLength, NoCalcLength};
+use values::specified::{Angle, Time};
+use values::{CSSFloat, CSSInteger};
 
 /// A node inside a `Calc` expression's AST.
 #[derive(Clone, Debug)]
diff --git a/components/style/values/specified/color.rs b/components/style/values/specified/color.rs
index 85d29f3e7e7..cc9884525ff 100644
--- a/components/style/values/specified/color.rs
+++ b/components/style/values/specified/color.rs
@@ -4,6 +4,7 @@
 
 //! Specified color values.
 
+use super::AllowQuirks;
 use cssparser::{AngleOrNumber, Color as CSSParserColor, Parser, Token, RGBA};
 use cssparser::{BasicParseErrorKind, NumberOrPercentage, ParseErrorKind};
 #[cfg(feature = "gecko")]
@@ -16,7 +17,6 @@ use std::fmt::{self, Write};
 use std::io::Write as IoWrite;
 use style_traits::{CssType, CssWriter, KeywordsCollectFn, ParseError, StyleParseErrorKind};
 use style_traits::{SpecifiedValueInfo, ToCss, ValueParseErrorKind};
-use super::AllowQuirks;
 use values::computed::{Color as ComputedColor, Context, ToComputedValue};
 use values::generics::color::Color as GenericColor;
 use values::specified::calc::CalcNode;
diff --git a/components/style/values/specified/counters.rs b/components/style/values/specified/counters.rs
index ea369f9dec7..d994339c5b5 100644
--- a/components/style/values/specified/counters.rs
+++ b/components/style/values/specified/counters.rs
@@ -10,17 +10,17 @@ use cssparser::{Parser, Token};
 use parser::{Parse, ParserContext};
 use selectors::parser::SelectorParseErrorKind;
 use style_traits::{ParseError, StyleParseErrorKind};
-use values::CustomIdent;
-#[cfg(feature = "gecko")]
-use values::generics::CounterStyleOrNone;
 use values::generics::counters as generics;
 use values::generics::counters::CounterIncrement as GenericCounterIncrement;
 use values::generics::counters::CounterPair;
 use values::generics::counters::CounterReset as GenericCounterReset;
 #[cfg(feature = "gecko")]
+use values::generics::CounterStyleOrNone;
+use values::specified::url::SpecifiedImageUrl;
+#[cfg(feature = "gecko")]
 use values::specified::Attr;
 use values::specified::Integer;
-use values::specified::url::SpecifiedImageUrl;
+use values::CustomIdent;
 
 /// A specified value for the `counter-increment` property.
 pub type CounterIncrement = GenericCounterIncrement<Integer>;
diff --git a/components/style/values/specified/easing.rs b/components/style/values/specified/easing.rs
index d6235612693..ab3b4cb43bc 100644
--- a/components/style/values/specified/easing.rs
+++ b/components/style/values/specified/easing.rs
@@ -9,8 +9,8 @@ use parser::{Parse, ParserContext};
 use selectors::parser::SelectorParseErrorKind;
 use style_traits::{ParseError, StyleParseErrorKind};
 use values::computed::easing::TimingFunction as ComputedTimingFunction;
-use values::generics::easing::{StepPosition, TimingKeyword};
 use values::generics::easing::TimingFunction as GenericTimingFunction;
+use values::generics::easing::{StepPosition, TimingKeyword};
 use values::specified::{Integer, Number};
 
 /// A specified timing function.
diff --git a/components/style/values/specified/effects.rs b/components/style/values/specified/effects.rs
index 861414ca756..3562d4fdfa4 100644
--- a/components/style/values/specified/effects.rs
+++ b/components/style/values/specified/effects.rs
@@ -7,20 +7,20 @@
 use cssparser::{self, BasicParseErrorKind, Parser, Token};
 use parser::{Parse, ParserContext};
 use style_traits::{ParseError, StyleParseErrorKind, ValueParseErrorKind};
-#[cfg(not(feature = "gecko"))]
-use values::Impossible;
-use values::computed::{Context, NonNegativeNumber as ComputedNonNegativeNumber, ToComputedValue};
 use values::computed::effects::BoxShadow as ComputedBoxShadow;
 use values::computed::effects::SimpleShadow as ComputedSimpleShadow;
-use values::generics::NonNegative;
+use values::computed::{Context, NonNegativeNumber as ComputedNonNegativeNumber, ToComputedValue};
 use values::generics::effects::BoxShadow as GenericBoxShadow;
 use values::generics::effects::Filter as GenericFilter;
 use values::generics::effects::SimpleShadow as GenericSimpleShadow;
-use values::specified::{Angle, NumberOrPercentage};
+use values::generics::NonNegative;
 use values::specified::color::Color;
 use values::specified::length::{Length, NonNegativeLength};
 #[cfg(feature = "gecko")]
 use values::specified::url::SpecifiedUrl;
+use values::specified::{Angle, NumberOrPercentage};
+#[cfg(not(feature = "gecko"))]
+use values::Impossible;
 
 /// A specified value for a single shadow of the `box-shadow` property.
 pub type BoxShadow =
diff --git a/components/style/values/specified/font.rs b/components/style/values/specified/font.rs
index c69b9b1a6fc..a2323c75c4b 100644
--- a/components/style/values/specified/font.rs
+++ b/components/style/values/specified/font.rs
@@ -4,7 +4,6 @@
 
 //! Specified values for font properties
 
-use Atom;
 use app_units::Au;
 use byteorder::{BigEndian, ByteOrder};
 use cssparser::{Parser, Token};
@@ -15,18 +14,21 @@ use malloc_size_of::{MallocSizeOf, MallocSizeOfOps};
 use parser::{Parse, ParserContext};
 use properties::longhands::system_font::SystemFont;
 use std::fmt::{self, Write};
+use style_traits::values::SequenceWriter;
 use style_traits::{CssWriter, KeywordsCollectFn, ParseError};
 use style_traits::{SpecifiedValueInfo, StyleParseErrorKind, ToCss};
-use style_traits::values::SequenceWriter;
-use values::CustomIdent;
-use values::computed::{Angle as ComputedAngle, Percentage as ComputedPercentage};
-use values::computed::{font as computed, Context, Length, NonNegativeLength, ToComputedValue};
 use values::computed::font::{FamilyName, FontFamilyList, FontStyleAngle, SingleFontFamily};
-use values::generics::NonNegative;
-use values::generics::font::{KeywordSize, VariationValue};
+use values::computed::{font as computed, Context, Length, NonNegativeLength, ToComputedValue};
+use values::computed::{Angle as ComputedAngle, Percentage as ComputedPercentage};
 use values::generics::font::{self as generics, FeatureTagValue, FontSettings, FontTag};
-use values::specified::{AllowQuirks, Angle, Integer, LengthOrPercentage, NoCalcLength, Number, Percentage};
+use values::generics::font::{KeywordSize, VariationValue};
+use values::generics::NonNegative;
 use values::specified::length::{FontBaseSize, AU_PER_PT, AU_PER_PX};
+use values::specified::{
+    AllowQuirks, Angle, Integer, LengthOrPercentage, NoCalcLength, Number, Percentage,
+};
+use values::CustomIdent;
+use Atom;
 
 // FIXME(emilio): The system font code is copy-pasta, and should be cleaned up.
 macro_rules! system_font_methods {
diff --git a/components/style/values/specified/gecko.rs b/components/style/values/specified/gecko.rs
index 847d632511e..5d9b773fd04 100644
--- a/components/style/values/specified/gecko.rs
+++ b/components/style/values/specified/gecko.rs
@@ -9,8 +9,8 @@ use gecko::values::GeckoStyleCoordConvertible;
 use gecko_bindings::sugar::ns_style_coord::{CoordData, CoordDataMut};
 use parser::{Parse, ParserContext};
 use std::fmt;
-use style_traits::{CssWriter, ParseError, StyleParseErrorKind, ToCss};
 use style_traits::values::SequenceWriter;
+use style_traits::{CssWriter, ParseError, StyleParseErrorKind, ToCss};
 use values::computed;
 use values::computed::length::CSSPixelLength;
 use values::generics::gecko::ScrollSnapPoint as GenericScrollSnapPoint;
diff --git a/components/style/values/specified/grid.rs b/components/style/values/specified/grid.rs
index ec00393febd..80b98688979 100644
--- a/components/style/values/specified/grid.rs
+++ b/components/style/values/specified/grid.rs
@@ -9,12 +9,12 @@ use cssparser::{ParseError as CssParseError, Parser, Token};
 use parser::{Parse, ParserContext};
 use std::mem;
 use style_traits::{ParseError, StyleParseErrorKind};
-use values::{CSSFloat, CustomIdent};
 use values::computed::{self, Context, ToComputedValue};
 use values::generics::grid::{GridTemplateComponent, RepeatCount, TrackBreadth};
 use values::generics::grid::{LineNameList, TrackKeyword, TrackRepeat, TrackSize};
 use values::generics::grid::{TrackList, TrackListType, TrackListValue};
 use values::specified::{Integer, LengthOrPercentage};
+use values::{CSSFloat, CustomIdent};
 
 /// Parse a single flexible length.
 pub fn parse_flex<'i, 't>(input: &mut Parser<'i, 't>) -> Result<CSSFloat, ParseError<'i>> {
diff --git a/components/style/values/specified/image.rs b/components/style/values/specified/image.rs
index b8c1c9f3958..e515082d860 100644
--- a/components/style/values/specified/image.rs
+++ b/components/style/values/specified/image.rs
@@ -7,8 +7,7 @@
 //!
 //! [image]: https://drafts.csswg.org/css-images/#image-values
 
-use Atom;
-use cssparser::{Parser, Token, Delimiter};
+use cssparser::{Delimiter, Parser, Token};
 use custom_properties::SpecifiedValue;
 use parser::{Parse, ParserContext};
 use selectors::parser::SelectorParseErrorKind;
@@ -17,17 +16,18 @@ use servo_url::ServoUrl;
 use std::cmp::Ordering;
 use std::fmt::{self, Write};
 use style_traits::{CssType, CssWriter, KeywordsCollectFn, ParseError};
-use style_traits::{StyleParseErrorKind, SpecifiedValueInfo, ToCss};
-use values::{Either, None_};
+use style_traits::{SpecifiedValueInfo, StyleParseErrorKind, ToCss};
 #[cfg(feature = "gecko")]
 use values::computed::{Context, Position as ComputedPosition, ToComputedValue};
-use values::generics::image::{self as generic, Circle, CompatMode, Ellipse, ShapeExtent};
 use values::generics::image::PaintWorklet;
+use values::generics::image::{self as generic, Circle, CompatMode, Ellipse, ShapeExtent};
 use values::generics::position::Position as GenericPosition;
-use values::specified::{Angle, Color, Length, LengthOrPercentage};
-use values::specified::{Number, NumberOrPercentage, Percentage};
 use values::specified::position::{LegacyPosition, Position, PositionComponent, Side, X, Y};
 use values::specified::url::SpecifiedImageUrl;
+use values::specified::{Angle, Color, Length, LengthOrPercentage};
+use values::specified::{Number, NumberOrPercentage, Percentage};
+use values::{Either, None_};
+use Atom;
 
 /// A specified image layer.
 pub type ImageLayer = Either<None_, Image>;
diff --git a/components/style/values/specified/length.rs b/components/style/values/specified/length.rs
index 128ab9959a5..05f5ccd55cd 100644
--- a/components/style/values/specified/length.rs
+++ b/components/style/values/specified/length.rs
@@ -6,6 +6,7 @@
 //!
 //! [length]: https://drafts.csswg.org/css-values/#lengths
 
+use super::{AllowQuirks, Number, Percentage, ToComputedValue};
 use app_units::Au;
 use cssparser::{Parser, Token};
 use euclid::Size2D;
@@ -13,18 +14,17 @@ use font_metrics::FontMetricsQueryResult;
 use parser::{Parse, ParserContext};
 use std::cmp;
 use std::ops::{Add, Mul};
-use style_traits::{ParseError, SpecifiedValueInfo, StyleParseErrorKind};
 use style_traits::values::specified::AllowedNumericType;
-use super::{AllowQuirks, Number, Percentage, ToComputedValue};
-use values::{Auto, CSSFloat, Either, Normal};
+use style_traits::{ParseError, SpecifiedValueInfo, StyleParseErrorKind};
 use values::computed::{self, CSSPixelLength, Context, ExtremumLength};
-use values::generics::NonNegative;
 use values::generics::length::{MaxLength as GenericMaxLength, MozLength as GenericMozLength};
+use values::generics::NonNegative;
 use values::specified::calc::CalcNode;
+use values::{Auto, CSSFloat, Either, Normal};
 
-pub use values::specified::calc::CalcLengthOrPercentage;
 pub use super::image::{ColorStop, EndingShape as GradientEndingShape, Gradient};
 pub use super::image::{GradientKind, Image};
+pub use values::specified::calc::CalcLengthOrPercentage;
 
 /// Number of app units per pixel
 pub const AU_PER_PX: CSSFloat = 60.;
diff --git a/components/style/values/specified/list.rs b/components/style/values/specified/list.rs
index f1fba44b080..4e30364eff5 100644
--- a/components/style/values/specified/list.rs
+++ b/components/style/values/specified/list.rs
@@ -9,9 +9,9 @@ use parser::{Parse, ParserContext};
 use std::fmt::{self, Write};
 use style_traits::{CssWriter, ParseError, StyleParseErrorKind, ToCss};
 #[cfg(feature = "gecko")]
-use values::CustomIdent;
-#[cfg(feature = "gecko")]
 use values::generics::CounterStyleOrNone;
+#[cfg(feature = "gecko")]
+use values::CustomIdent;
 
 /// Specified and computed `list-style-type` property.
 #[cfg(feature = "gecko")]
diff --git a/components/style/values/specified/mod.rs b/components/style/values/specified/mod.rs
index 0a910f9ce6a..afac1f50a39 100644
--- a/components/style/values/specified/mod.rs
+++ b/components/style/values/specified/mod.rs
@@ -6,47 +6,51 @@
 //!
 //! TODO(emilio): Enhance docs.
 
-use {Atom, Namespace, Prefix};
+use super::computed::{Context, ToComputedValue};
+use super::generics::grid::{GridLine as GenericGridLine, TrackBreadth as GenericTrackBreadth};
+use super::generics::grid::{TrackList as GenericTrackList, TrackSize as GenericTrackSize};
+use super::generics::{GreaterThanOrEqualToOne, NonNegative};
+use super::{Auto, CSSFloat, CSSInteger, Either};
 use context::QuirksMode;
 use cssparser::{Parser, Token};
 use num_traits::One;
 use parser::{Parse, ParserContext};
 use std::f32;
 use std::fmt::{self, Write};
-use style_traits::{CssWriter, ParseError, SpecifiedValueInfo, StyleParseErrorKind, ToCss};
 use style_traits::values::specified::AllowedNumericType;
-use super::{Auto, CSSFloat, CSSInteger, Either};
-use super::computed::{Context, ToComputedValue};
-use super::generics::{GreaterThanOrEqualToOne, NonNegative};
-use super::generics::grid::{GridLine as GenericGridLine, TrackBreadth as GenericTrackBreadth};
-use super::generics::grid::{TrackList as GenericTrackList, TrackSize as GenericTrackSize};
+use style_traits::{CssWriter, ParseError, SpecifiedValueInfo, StyleParseErrorKind, ToCss};
 use values::serialize_atom_identifier;
 use values::specified::calc::CalcNode;
+use {Atom, Namespace, Prefix};
 
-pub use self::angle::Angle;
 #[cfg(feature = "gecko")]
 pub use self::align::{AlignContent, AlignItems, AlignSelf, ContentDistribution};
 #[cfg(feature = "gecko")]
 pub use self::align::{JustifyContent, JustifyItems, JustifySelf, SelfAlignment};
+pub use self::angle::Angle;
 pub use self::background::{BackgroundRepeat, BackgroundSize};
 pub use self::basic_shape::FillRule;
 pub use self::border::{BorderCornerRadius, BorderImageSlice, BorderImageWidth};
 pub use self::border::{BorderImageRepeat, BorderImageSideWidth};
 pub use self::border::{BorderRadius, BorderSideWidth, BorderSpacing};
-pub use self::column::ColumnCount;
-pub use self::font::{FontSize, FontSizeAdjust, FontStretch, FontSynthesis, FontVariantAlternates, FontWeight};
-pub use self::font::{FontFamily, FontLanguageOverride, FontStyle, FontVariantEastAsian, FontVariationSettings};
-pub use self::font::{FontFeatureSettings, FontVariantLigatures, FontVariantNumeric};
-pub use self::font::{MozScriptLevel, MozScriptMinSize, MozScriptSizeMultiplier, XLang, XTextZoom};
 pub use self::box_::{AnimationIterationCount, AnimationName, Contain, Display};
 pub use self::box_::{Appearance, Clear, Float};
 pub use self::box_::{OverflowClipBox, OverscrollBehavior, Perspective, Resize};
 pub use self::box_::{ScrollSnapType, TouchAction, TransitionProperty, VerticalAlign, WillChange};
 pub use self::color::{Color, ColorPropertyValue, RGBAColor};
+pub use self::column::ColumnCount;
 pub use self::counters::{Content, ContentItem, CounterIncrement, CounterReset};
 pub use self::easing::TimingFunction;
 pub use self::effects::{BoxShadow, Filter, SimpleShadow};
 pub use self::flex::FlexBasis;
+pub use self::font::{
+    FontFamily, FontLanguageOverride, FontStyle, FontVariantEastAsian, FontVariationSettings,
+};
+pub use self::font::{FontFeatureSettings, FontVariantLigatures, FontVariantNumeric};
+pub use self::font::{
+    FontSize, FontSizeAdjust, FontStretch, FontSynthesis, FontVariantAlternates, FontWeight,
+};
+pub use self::font::{MozScriptLevel, MozScriptMinSize, MozScriptSizeMultiplier, XLang, XTextZoom};
 #[cfg(feature = "gecko")]
 pub use self::gecko::ScrollSnapPoint;
 pub use self::image::{ColorStop, EndingShape as GradientEndingShape, Gradient};
@@ -57,30 +61,30 @@ pub use self::length::{LengthOrPercentage, LengthOrPercentageOrAuto};
 pub use self::length::{LengthOrPercentageOrNone, MaxLength, MozLength};
 pub use self::length::{NoCalcLength, ViewportPercentageLength};
 pub use self::length::{NonNegativeLengthOrPercentage, NonNegativeLengthOrPercentageOrAuto};
-pub use self::list::Quotes;
 #[cfg(feature = "gecko")]
 pub use self::list::ListStyleType;
+pub use self::list::Quotes;
 pub use self::motion::OffsetPath;
 pub use self::outline::OutlineStyle;
-pub use self::rect::LengthOrNumberRect;
-pub use self::resolution::Resolution;
 pub use self::percentage::Percentage;
 pub use self::position::{GridAutoFlow, GridTemplateAreas, Position};
 pub use self::position::{PositionComponent, ZIndex};
+pub use self::rect::LengthOrNumberRect;
+pub use self::resolution::Resolution;
+pub use self::svg::MozContextProperties;
 pub use self::svg::{SVGLength, SVGOpacity, SVGPaint, SVGPaintKind};
 pub use self::svg::{SVGPaintOrder, SVGStrokeDashArray, SVGWidth};
-pub use self::svg::MozContextProperties;
 pub use self::svg_path::SVGPathData;
 pub use self::table::XSpan;
 pub use self::text::{InitialLetter, LetterSpacing, LineHeight, MozTabSize, TextAlign};
-pub use self::text::{TextEmphasisPosition, TextEmphasisStyle};
 pub use self::text::{TextAlignKeyword, TextDecorationLine, TextOverflow, WordSpacing};
+pub use self::text::{TextEmphasisPosition, TextEmphasisStyle};
 pub use self::time::Time;
 pub use self::transform::{Rotate, Scale, Transform};
 pub use self::transform::{TransformOrigin, TransformStyle, Translate};
-pub use self::ui::{ColorOrAuto, Cursor, MozForceBrokenImageIcon};
 #[cfg(feature = "gecko")]
 pub use self::ui::CursorImage;
+pub use self::ui::{ColorOrAuto, Cursor, MozForceBrokenImageIcon};
 pub use super::generics::grid::GridTemplateComponent as GenericGridTemplateComponent;
 
 #[cfg(feature = "gecko")]
diff --git a/components/style/values/specified/percentage.rs b/components/style/values/specified/percentage.rs
index 9f8fb1bfbf5..55c5216fb17 100644
--- a/components/style/values/specified/percentage.rs
+++ b/components/style/values/specified/percentage.rs
@@ -7,12 +7,12 @@
 use cssparser::{Parser, Token};
 use parser::{Parse, ParserContext};
 use std::fmt::{self, Write};
-use style_traits::{CssWriter, ParseError, SpecifiedValueInfo, ToCss};
 use style_traits::values::specified::AllowedNumericType;
-use values::{serialize_percentage, CSSFloat};
-use values::computed::{Context, ToComputedValue};
+use style_traits::{CssWriter, ParseError, SpecifiedValueInfo, ToCss};
 use values::computed::percentage::Percentage as ComputedPercentage;
+use values::computed::{Context, ToComputedValue};
 use values::specified::calc::CalcNode;
+use values::{serialize_percentage, CSSFloat};
 
 /// A percentage value.
 #[derive(Clone, Copy, Debug, Default, MallocSizeOf, PartialEq)]
diff --git a/components/style/values/specified/position.rs b/components/style/values/specified/position.rs
index 6117436695f..0459d2818d8 100644
--- a/components/style/values/specified/position.rs
+++ b/components/style/values/specified/position.rs
@@ -16,13 +16,13 @@ use std::fmt::{self, Write};
 use std::ops::Range;
 use str::HTML_SPACE_CHARACTERS;
 use style_traits::{CssWriter, ParseError, StyleParseErrorKind, ToCss};
-use values::{Either, None_};
 use values::computed::{CalcLengthOrPercentage, LengthOrPercentage as ComputedLengthOrPercentage};
 use values::computed::{Context, Percentage, ToComputedValue};
 use values::generics::position::Position as GenericPosition;
 use values::generics::position::ZIndex as GenericZIndex;
-use values::specified::{AllowQuirks, Integer, LengthOrPercentage};
 use values::specified::transform::OriginComponent;
+use values::specified::{AllowQuirks, Integer, LengthOrPercentage};
+use values::{Either, None_};
 
 /// The specified value of a CSS `<position>`
 pub type Position = GenericPosition<HorizontalPosition, VerticalPosition>;
diff --git a/components/style/values/specified/svg.rs b/components/style/values/specified/svg.rs
index f91ac511af1..4b64e8fe537 100644
--- a/components/style/values/specified/svg.rs
+++ b/components/style/values/specified/svg.rs
@@ -9,12 +9,12 @@ use parser::{Parse, ParserContext};
 use std::fmt::{self, Write};
 use style_traits::{CommaWithSpace, CssWriter, ParseError, Separator};
 use style_traits::{StyleParseErrorKind, ToCss};
-use values::CustomIdent;
 use values::generics::svg as generic;
-use values::specified::{LengthOrPercentage, NonNegativeLengthOrPercentage, NonNegativeNumber};
-use values::specified::{Number, Opacity};
 use values::specified::color::Color;
 use values::specified::url::SpecifiedUrl;
+use values::specified::{LengthOrPercentage, NonNegativeLengthOrPercentage, NonNegativeNumber};
+use values::specified::{Number, Opacity};
+use values::CustomIdent;
 
 /// Specified SVG Paint value
 pub type SVGPaint = generic::SVGPaint<Color, SpecifiedUrl>;
diff --git a/components/style/values/specified/svg_path.rs b/components/style/values/specified/svg_path.rs
index c3acf4585fa..02d19bffcf4 100644
--- a/components/style/values/specified/svg_path.rs
+++ b/components/style/values/specified/svg_path.rs
@@ -10,11 +10,11 @@ use std::fmt::{self, Write};
 use std::iter::{Cloned, Peekable};
 use std::ops::AddAssign;
 use std::slice;
-use style_traits::{CssWriter, ParseError, StyleParseErrorKind, ToCss};
 use style_traits::values::SequenceWriter;
-use values::CSSFloat;
+use style_traits::{CssWriter, ParseError, StyleParseErrorKind, ToCss};
 use values::animated::{Animate, Procedure, ToAnimatedZero};
 use values::distance::{ComputeSquaredDistance, SquaredDistance};
+use values::CSSFloat;
 
 /// The SVG path data.
 ///
diff --git a/components/style/values/specified/text.rs b/components/style/values/specified/text.rs
index 3168dd4c06f..32405076054 100644
--- a/components/style/values/specified/text.rs
+++ b/components/style/values/specified/text.rs
@@ -9,22 +9,22 @@ use parser::{Parse, ParserContext};
 use properties::longhands::writing_mode::computed_value::T as SpecifiedWritingMode;
 use selectors::parser::SelectorParseErrorKind;
 use std::fmt::{self, Write};
+use style_traits::values::SequenceWriter;
 use style_traits::{CssWriter, KeywordsCollectFn, ParseError};
 use style_traits::{SpecifiedValueInfo, StyleParseErrorKind, ToCss};
-use style_traits::values::SequenceWriter;
 use unicode_segmentation::UnicodeSegmentation;
-use values::computed::{Context, ToComputedValue};
 use values::computed::text::LineHeight as ComputedLineHeight;
 use values::computed::text::TextEmphasisKeywordValue as ComputedTextEmphasisKeywordValue;
 use values::computed::text::TextEmphasisStyle as ComputedTextEmphasisStyle;
 use values::computed::text::TextOverflow as ComputedTextOverflow;
+use values::computed::{Context, ToComputedValue};
 use values::generics::text::InitialLetter as GenericInitialLetter;
 use values::generics::text::LineHeight as GenericLineHeight;
 use values::generics::text::MozTabSize as GenericMozTabSize;
 use values::generics::text::Spacing;
-use values::specified::{AllowQuirks, Integer, NonNegativeNumber, Number};
 use values::specified::length::{FontRelativeLength, Length, LengthOrPercentage, NoCalcLength};
 use values::specified::length::{NonNegativeLength, NonNegativeLengthOrPercentage};
+use values::specified::{AllowQuirks, Integer, NonNegativeNumber, Number};
 
 /// A specified type for the `initial-letter` property.
 pub type InitialLetter = GenericInitialLetter<Number, Integer>;
diff --git a/components/style/values/specified/time.rs b/components/style/values/specified/time.rs
index 6895a918346..bca7c6b0636 100644
--- a/components/style/values/specified/time.rs
+++ b/components/style/values/specified/time.rs
@@ -7,12 +7,12 @@
 use cssparser::{Parser, Token};
 use parser::{Parse, ParserContext};
 use std::fmt::{self, Write};
-use style_traits::{CssWriter, ParseError, SpecifiedValueInfo, StyleParseErrorKind, ToCss};
 use style_traits::values::specified::AllowedNumericType;
-use values::CSSFloat;
-use values::computed::{Context, ToComputedValue};
+use style_traits::{CssWriter, ParseError, SpecifiedValueInfo, StyleParseErrorKind, ToCss};
 use values::computed::time::Time as ComputedTime;
+use values::computed::{Context, ToComputedValue};
 use values::specified::calc::CalcNode;
+use values::CSSFloat;
 
 /// A time value according to CSS-VALUES § 6.2.
 #[derive(Clone, Copy, Debug, MallocSizeOf, PartialEq)]
diff --git a/components/style/values/specified/transform.rs b/components/style/values/specified/transform.rs
index 1a789c1959d..d306211329e 100644
--- a/components/style/values/specified/transform.rs
+++ b/components/style/values/specified/transform.rs
@@ -11,8 +11,8 @@ use values::computed::{Context, LengthOrPercentage as ComputedLengthOrPercentage
 use values::computed::{Percentage as ComputedPercentage, ToComputedValue};
 use values::generics::transform as generic;
 use values::generics::transform::{Matrix, Matrix3D};
-use values::specified::{self, Angle, Integer, Length, LengthOrPercentage, Number};
 use values::specified::position::{Side, X, Y};
+use values::specified::{self, Angle, Integer, Length, LengthOrPercentage, Number};
 
 pub use values::generics::transform::TransformStyle;
 
diff --git a/components/style/values/specified/ui.rs b/components/style/values/specified/ui.rs
index c9c5c0a8414..ec930b28c00 100644
--- a/components/style/values/specified/ui.rs
+++ b/components/style/values/specified/ui.rs
@@ -7,13 +7,13 @@
 use cssparser::Parser;
 use parser::{Parse, ParserContext};
 use std::fmt::{self, Write};
-use style_traits::{CssWriter, ParseError, StyleParseErrorKind, ToCss};
 use style_traits::cursor::CursorKind;
-use values::{Auto, Either};
+use style_traits::{CssWriter, ParseError, StyleParseErrorKind, ToCss};
 use values::generics::ui as generics;
-use values::specified::Number;
 use values::specified::color::Color;
 use values::specified::url::SpecifiedImageUrl;
+use values::specified::Number;
+use values::{Auto, Either};
 
 /// auto | <color>
 pub type ColorOrAuto = Either<Color, Auto>;
diff --git a/components/style/values/specified/url.rs b/components/style/values/specified/url.rs
index d5a165f22d8..fe68c3143f5 100644
--- a/components/style/values/specified/url.rs
+++ b/components/style/values/specified/url.rs
@@ -6,10 +6,10 @@
 
 use values::generics::url::UrlOrNone as GenericUrlOrNone;
 
-#[cfg(feature = "servo")]
-pub use servo::url::{SpecifiedImageUrl, SpecifiedUrl};
 #[cfg(feature = "gecko")]
 pub use gecko::url::{SpecifiedImageUrl, SpecifiedUrl};
+#[cfg(feature = "servo")]
+pub use servo::url::{SpecifiedImageUrl, SpecifiedUrl};
 
 /// Specified <url> | <none>
 pub type UrlOrNone = GenericUrlOrNone<SpecifiedUrl>;
diff --git a/components/style_derive/cg.rs b/components/style_derive/cg.rs
index 9338e3b4f5e..fdbb96794c5 100644
--- a/components/style_derive/cg.rs
+++ b/components/style_derive/cg.rs
@@ -9,7 +9,7 @@ use syn::{GenericArgument, GenericParam, Ident, Path};
 use syn::{PathArguments, PathSegment, QSelf, Type, TypeArray};
 use syn::{TypeParam, TypeParen, TypePath, TypeSlice, TypeTuple};
 use syn::{Variant, WherePredicate};
-use synstructure::{self, BindingInfo, BindStyle, VariantAst, VariantInfo};
+use synstructure::{self, BindStyle, BindingInfo, VariantAst, VariantInfo};
 
 pub fn add_predicate(where_clause: &mut Option<syn::WhereClause>, pred: WherePredicate) {
     where_clause
diff --git a/components/style_derive/compute_squared_distance.rs b/components/style_derive/compute_squared_distance.rs
index f7e50c6bb00..a2d7cb77090 100644
--- a/components/style_derive/compute_squared_distance.rs
+++ b/components/style_derive/compute_squared_distance.rs
@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use animate::{AnimationInputAttrs, AnimationVariantAttrs, AnimationFieldAttrs};
+use animate::{AnimationFieldAttrs, AnimationInputAttrs, AnimationVariantAttrs};
 use cg;
 use quote::Tokens;
 use syn::{DeriveInput, Path};
diff --git a/components/style_traits/values.rs b/components/style_traits/values.rs
index e101dd41c3f..056f2179d28 100644
--- a/components/style_traits/values.rs
+++ b/components/style_traits/values.rs
@@ -5,8 +5,8 @@
 //! Helper types and traits for the handling of CSS values.
 
 use app_units::Au;
-use cssparser::{ParseError, Parser, Token, UnicodeRange, serialize_string};
 use cssparser::ToCss as CssparserToCss;
+use cssparser::{serialize_string, ParseError, Parser, Token, UnicodeRange};
 use servo_arc::Arc;
 use std::fmt::{self, Write};
 
diff --git a/components/style_traits/viewport.rs b/components/style_traits/viewport.rs
index 5cf7bc95667..7b01924dd66 100644
--- a/components/style_traits/viewport.rs
+++ b/components/style_traits/viewport.rs
@@ -4,10 +4,10 @@
 
 //! Helper types for the `@viewport` rule.
 
-use {CSSPixel, CssWriter, ParseError, PinchZoomFactor, ToCss};
 use cssparser::Parser;
 use euclid::TypedSize2D;
 use std::fmt::{self, Write};
+use {CSSPixel, CssWriter, ParseError, PinchZoomFactor, ToCss};
 
 define_css_keyword_enum! {
     pub enum UserZoom {
@@ -115,9 +115,9 @@ impl Zoom {
     ///
     /// <https://drafts.csswg.org/css-device-adapt/#descdef-viewport-zoom>
     pub fn parse<'i, 't>(input: &mut Parser<'i, 't>) -> Result<Zoom, ParseError<'i>> {
-        use ParsingMode;
         use cssparser::Token;
         use values::specified::AllowedNumericType::NonNegative;
+        use ParsingMode;
 
         let location = input.current_source_location();
         match *input.next()? {
diff --git a/components/url/lib.rs b/components/url/lib.rs
index 3dc822617fb..069fc767691 100644
--- a/components/url/lib.rs
+++ b/components/url/lib.rs
@@ -19,14 +19,14 @@ extern crate uuid;
 
 pub mod origin;
 
-pub use crate::origin::{OpaqueOrigin, ImmutableOrigin, MutableOrigin};
+pub use crate::origin::{ImmutableOrigin, MutableOrigin, OpaqueOrigin};
 
 use std::fmt;
 use std::net::IpAddr;
-use std::ops::{Range, RangeFrom, RangeTo, RangeFull, Index};
+use std::ops::{Index, Range, RangeFrom, RangeFull, RangeTo};
 use std::path::Path;
 use std::sync::Arc;
-use url::{Url, Position};
+use url::{Position, Url};
 
 pub use url::Host;
 
diff --git a/components/webdriver_server/lib.rs b/components/webdriver_server/lib.rs
index 179ebb82922..c199eddee28 100644
--- a/components/webdriver_server/lib.rs
+++ b/components/webdriver_server/lib.rs
@@ -38,14 +38,16 @@ use ipc_channel::ipc::{self, IpcReceiver, IpcSender};
 use msg::constellation_msg::{BrowsingContextId, TopLevelBrowsingContextId, TraversalDirection};
 use net_traits::image::base::PixelFormat;
 use regex::Captures;
-use script_traits::{ConstellationMsg, LoadData, WebDriverCommandMsg};
 use script_traits::webdriver_msg::{LoadStatus, WebDriverCookieError, WebDriverFrameId};
-use script_traits::webdriver_msg::{WebDriverJSError, WebDriverJSResult, WebDriverScriptCommand, WebDriverJSValue};
+use script_traits::webdriver_msg::{
+    WebDriverJSError, WebDriverJSResult, WebDriverJSValue, WebDriverScriptCommand,
+};
+use script_traits::{ConstellationMsg, LoadData, WebDriverCommandMsg};
 use serde::de::{Deserialize, Deserializer, MapAccess, Visitor};
 use serde::ser::{Serialize, Serializer};
 use serde_json::Value;
 use servo_channel::Sender;
-use servo_config::prefs::{PREFS, PrefValue};
+use servo_config::prefs::{PrefValue, PREFS};
 use servo_url::ServoUrl;
 use std::borrow::ToOwned;
 use std::collections::BTreeMap;
@@ -54,9 +56,13 @@ use std::net::{SocketAddr, SocketAddrV4};
 use std::thread;
 use std::time::Duration;
 use uuid::Uuid;
-use webdriver::command::{AddCookieParameters, GetParameters, JavascriptCommandParameters, LocatorParameters};
+use webdriver::command::{
+    AddCookieParameters, GetParameters, JavascriptCommandParameters, LocatorParameters,
+};
 use webdriver::command::{SendKeysParameters, SwitchToFrameParameters, TimeoutsParameters};
-use webdriver::command::{WebDriverCommand, WebDriverExtensionCommand, WebDriverMessage, WindowRectParameters};
+use webdriver::command::{
+    WebDriverCommand, WebDriverExtensionCommand, WebDriverMessage, WindowRectParameters,
+};
 use webdriver::common::{Cookie, Date, LocatorStrategy, WebElement};
 use webdriver::error::{ErrorStatus, WebDriverError, WebDriverResult};
 use webdriver::httpapi::WebDriverExtensionRoute;
diff --git a/components/webvr/lib.rs b/components/webvr/lib.rs
index cd22e81e3c9..6b84eb6e1a9 100644
--- a/components/webvr/lib.rs
+++ b/components/webvr/lib.rs
@@ -17,4 +17,4 @@ extern crate servo_config;
 extern crate webvr_traits;
 
 mod webvr_thread;
-pub use crate::webvr_thread::{WebVRThread, WebVRCompositorHandler};
+pub use crate::webvr_thread::{WebVRCompositorHandler, WebVRThread};
diff --git a/components/webvr/webvr_thread.rs b/components/webvr/webvr_thread.rs
index cdfd4f6140a..4a264e073c0 100644
--- a/components/webvr/webvr_thread.rs
+++ b/components/webvr/webvr_thread.rs
@@ -11,10 +11,10 @@ use rust_webvr::VRServiceManager;
 use script_traits::ConstellationMsg;
 use servo_channel::{channel, Receiver, Sender};
 use servo_config::prefs::PREFS;
-use std::{thread, time};
 use std::collections::{HashMap, HashSet};
-use webvr_traits::{WebVRMsg, WebVRResult};
+use std::{thread, time};
 use webvr_traits::webvr::*;
+use webvr_traits::{WebVRMsg, WebVRResult};
 
 /// WebVRThread owns native VRDisplays, handles their life cycle inside Servo and
 /// acts a doorman for untrusted VR requests from DOM Objects. These are the key components
diff --git a/components/webvr_traits/lib.rs b/components/webvr_traits/lib.rs
index 7478a1dbcb8..d1d33111eb0 100644
--- a/components/webvr_traits/lib.rs
+++ b/components/webvr_traits/lib.rs
@@ -12,20 +12,20 @@ pub extern crate rust_webvr_api as webvr;
 
 mod webvr_traits;
 
-pub use crate::webvr::VRDisplayData as WebVRDisplayData;
 pub use crate::webvr::VRDisplayCapabilities as WebVRDisplayCapabilities;
+pub use crate::webvr::VRDisplayData as WebVRDisplayData;
 pub use crate::webvr::VRDisplayEvent as WebVRDisplayEvent;
 pub use crate::webvr::VRDisplayEventReason as WebVRDisplayEventReason;
 pub use crate::webvr::VREvent as WebVREvent;
 pub use crate::webvr::VREye as WebVREye;
 pub use crate::webvr::VREyeParameters as WebVREyeParameters;
 pub use crate::webvr::VRFieldOfView as WebVRFieldOfView;
+pub use crate::webvr::VRFrameData as WebVRFrameData;
 pub use crate::webvr::VRGamepadButton as WebVRGamepadButton;
 pub use crate::webvr::VRGamepadData as WebVRGamepadData;
 pub use crate::webvr::VRGamepadEvent as WebVRGamepadEvent;
 pub use crate::webvr::VRGamepadHand as WebVRGamepadHand;
 pub use crate::webvr::VRGamepadState as WebVRGamepadState;
-pub use crate::webvr::VRFrameData as WebVRFrameData;
 pub use crate::webvr::VRLayer as WebVRLayer;
 pub use crate::webvr::VRPose as WebVRPose;
 pub use crate::webvr::VRStageParameters as WebVRStageParameters;
diff --git a/ports/libmlservo/src/lib.rs b/ports/libmlservo/src/lib.rs
index 39e6f2af481..e094d856d47 100644
--- a/ports/libmlservo/src/lib.rs
+++ b/ports/libmlservo/src/lib.rs
@@ -14,17 +14,15 @@ use egl::egl::EGLSurface;
 use egl::egl::MakeCurrent;
 use egl::egl::SwapBuffers;
 use egl::eglext::eglGetProcAddress;
-use servo::BrowserId;
-use servo::Servo;
 use servo::compositing::windowing::AnimationState;
 use servo::compositing::windowing::EmbedderCoordinates;
 use servo::compositing::windowing::MouseWindowEvent;
 use servo::compositing::windowing::WindowEvent;
 use servo::compositing::windowing::WindowMethods;
-use servo::embedder_traits::EmbedderMsg;
-use servo::embedder_traits::EventLoopWaker;
 use servo::embedder_traits::resources::Resource;
 use servo::embedder_traits::resources::ResourceReaderMethods;
+use servo::embedder_traits::EmbedderMsg;
+use servo::embedder_traits::EventLoopWaker;
 use servo::euclid::TypedPoint2D;
 use servo::euclid::TypedRect;
 use servo::euclid::TypedScale;
@@ -40,6 +38,8 @@ use servo::webrender_api::DevicePixel;
 use servo::webrender_api::DevicePoint;
 use servo::webrender_api::LayoutPixel;
 use servo::webrender_api::ScrollLocation;
+use servo::BrowserId;
+use servo::Servo;
 use smallvec::SmallVec;
 use std::ffi::CStr;
 use std::ffi::CString;
diff --git a/ports/libsimpleservo/src/api.rs b/ports/libsimpleservo/src/api.rs
index 8ecc9ed6eb1..1c374531612 100644
--- a/ports/libsimpleservo/src/api.rs
+++ b/ports/libsimpleservo/src/api.rs
@@ -3,16 +3,18 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use serde_json;
-use servo::{self, gl, webrender_api, BrowserId, Servo};
-use servo::compositing::windowing::{AnimationState, EmbedderCoordinates, MouseWindowEvent, WindowEvent, WindowMethods};
-use servo::embedder_traits::EmbedderMsg;
+use servo::compositing::windowing::{
+    AnimationState, EmbedderCoordinates, MouseWindowEvent, WindowEvent, WindowMethods,
+};
 use servo::embedder_traits::resources::{self, Resource};
+use servo::embedder_traits::EmbedderMsg;
 use servo::euclid::{TypedPoint2D, TypedScale, TypedSize2D, TypedVector2D};
 use servo::msg::constellation_msg::TraversalDirection;
 use servo::script_traits::{MouseButton, TouchEventType};
 use servo::servo_config::opts;
 use servo::servo_config::prefs::{PrefValue, PREFS};
 use servo::servo_url::ServoUrl;
+use servo::{self, gl, webrender_api, BrowserId, Servo};
 use std::cell::{Cell, RefCell};
 use std::mem;
 use std::path::PathBuf;
diff --git a/ports/libsimpleservo/src/capi.rs b/ports/libsimpleservo/src/capi.rs
index b5b1f393924..bcd1d247854 100644
--- a/ports/libsimpleservo/src/capi.rs
+++ b/ports/libsimpleservo/src/capi.rs
@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use crate::api::{self, EventLoopWaker, InitOptions, ServoGlue, SERVO, HostTrait, ReadFileTrait};
+use crate::api::{self, EventLoopWaker, HostTrait, InitOptions, ReadFileTrait, ServoGlue, SERVO};
 use crate::gl_glue;
 use servo::gl;
 use std::ffi::{CStr, CString};
diff --git a/ports/libsimpleservo/src/jniapi.rs b/ports/libsimpleservo/src/jniapi.rs
index 27bc375d28c..a6fc987ff95 100644
--- a/ports/libsimpleservo/src/jniapi.rs
+++ b/ports/libsimpleservo/src/jniapi.rs
@@ -5,12 +5,12 @@
 #![allow(non_snake_case)]
 
 use android_logger::{self, Filter};
-use crate::api::{self, EventLoopWaker, InitOptions, ServoGlue, SERVO, HostTrait, ReadFileTrait};
+use crate::api::{self, EventLoopWaker, HostTrait, InitOptions, ReadFileTrait, ServoGlue, SERVO};
 use crate::gl_glue;
-use jni::{errors, JNIEnv, JavaVM};
 use jni::objects::{GlobalRef, JClass, JObject, JString, JValue};
 use jni::sys::{jboolean, jfloat, jint, jstring, JNI_TRUE};
-use libc::{pipe, dup2, read};
+use jni::{errors, JNIEnv, JavaVM};
+use libc::{dup2, pipe, read};
 use log::Level;
 use std;
 use std::os::raw::{c_char, c_int, c_void};
@@ -441,7 +441,7 @@ impl HostTrait for HostCallbacks {
 }
 
 fn initialize_android_glue(env: &JNIEnv, activity: JObject) {
-    use android_injected_glue::{ANDROID_APP, ffi};
+    use android_injected_glue::{ffi, ANDROID_APP};
 
     // From jni-rs to android_injected_glue
 
diff --git a/rustfmt.toml b/rustfmt.toml
index 0a1dde3b80c..de839baed13 100644
--- a/rustfmt.toml
+++ b/rustfmt.toml
@@ -1,4 +1,3 @@
 match_block_trailing_comma = true
 binop_separator = "Back"
-# Turn off import reordering, since the new algorithm clashes with tidy.
-reorder_imports = false
+reorder_imports = true
diff --git a/tests/unit/metrics/interactive_time.rs b/tests/unit/metrics/interactive_time.rs
index c525ccdfc2c..9b3d0a6f532 100644
--- a/tests/unit/metrics/interactive_time.rs
+++ b/tests/unit/metrics/interactive_time.rs
@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use ipc_channel::ipc;
-use metrics::{InteractiveMetrics, InteractiveFlag};
+use metrics::{InteractiveFlag, InteractiveMetrics};
 use metrics::{ProfilerMetadataFactory, ProgressiveWebMetric};
 use profile_traits::time::{ProfilerChan, TimerMetadata};
 use servo_url::ServoUrl;
diff --git a/tests/unit/script/headers.rs b/tests/unit/script/headers.rs
index a08b82b5dfa..ae0df0eff2b 100644
--- a/tests/unit/script/headers.rs
+++ b/tests/unit/script/headers.rs
@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use script::test::{ByteString, normalize_value};
+use script::test::{normalize_value, ByteString};
 
 #[test]
 fn test_normalize_empty_bytestring() {
diff --git a/tests/unit/script/htmlimageelement.rs b/tests/unit/script/htmlimageelement.rs
index 6c38bfa83e2..59810ba44ca 100644
--- a/tests/unit/script/htmlimageelement.rs
+++ b/tests/unit/script/htmlimageelement.rs
@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use script::test::srcset::{Descriptor, ImageSource, parse_a_srcset_attribute};
+use script::test::srcset::{parse_a_srcset_attribute, Descriptor, ImageSource};
 
 #[test]
 fn no_value() {
diff --git a/tests/unit/script/textinput.rs b/tests/unit/script/textinput.rs
index 6488542269b..73d99cf1588 100644
--- a/tests/unit/script/textinput.rs
+++ b/tests/unit/script/textinput.rs
@@ -10,7 +10,7 @@
 use keyboard_types::{Key, Modifiers};
 use script::clipboard_provider::DummyClipboardContext;
 use script::test::DOMString;
-use script::textinput::{TextInput, TextPoint, Selection, Lines, Direction, SelectionDirection};
+use script::textinput::{Direction, Lines, Selection, SelectionDirection, TextInput, TextPoint};
 
 fn text_input(lines: Lines, s: &str) -> TextInput<DummyClipboardContext> {
     TextInput::new(
diff --git a/tests/unit/style/attr.rs b/tests/unit/style/attr.rs
index c0bcc87d28f..b10a5c886dc 100644
--- a/tests/unit/style/attr.rs
+++ b/tests/unit/style/attr.rs
@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use app_units::Au;
-use style::attr::{AttrValue, LengthOrPercentageOrAuto, parse_length};
+use style::attr::{parse_length, AttrValue, LengthOrPercentageOrAuto};
 use style::values::computed::{CalcLengthOrPercentage, Percentage};
 
 #[test]
diff --git a/tests/unit/style/custom_properties.rs b/tests/unit/style/custom_properties.rs
index e9b4399b1b7..b103b869323 100644
--- a/tests/unit/style/custom_properties.rs
+++ b/tests/unit/style/custom_properties.rs
@@ -4,7 +4,9 @@
 
 use cssparser::{Parser, ParserInput};
 use servo_arc::Arc;
-use style::custom_properties::{Name, SpecifiedValue, CustomPropertiesMap, CustomPropertiesBuilder, CssEnvironment};
+use style::custom_properties::{
+    CssEnvironment, CustomPropertiesBuilder, CustomPropertiesMap, Name, SpecifiedValue,
+};
 use style::properties::CustomDeclarationValue;
 use test::{self, Bencher};
 
diff --git a/tests/unit/style/logical_geometry.rs b/tests/unit/style/logical_geometry.rs
index e024528e65d..5fb27d1d877 100644
--- a/tests/unit/style/logical_geometry.rs
+++ b/tests/unit/style/logical_geometry.rs
@@ -2,8 +2,8 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use euclid::{Size2D, Point2D, SideOffsets2D, Rect};
-use style::logical_geometry::{WritingMode, LogicalSize, LogicalPoint, LogicalMargin, LogicalRect};
+use euclid::{Point2D, Rect, SideOffsets2D, Size2D};
+use style::logical_geometry::{LogicalMargin, LogicalPoint, LogicalRect, LogicalSize, WritingMode};
 
 #[cfg(test)]
 fn modes() -> [WritingMode; 13] {
diff --git a/tests/unit/style/parsing/animation.rs b/tests/unit/style/parsing/animation.rs
index c138a51a1c4..c4057398855 100644
--- a/tests/unit/style/parsing/animation.rs
+++ b/tests/unit/style/parsing/animation.rs
@@ -6,8 +6,8 @@ use parsing::parse;
 use servo_atoms::Atom;
 use style::parser::Parse;
 use style::properties::longhands::animation_name;
-use style::values::{KeyframesName, CustomIdent};
 use style::values::specified::AnimationIterationCount;
+use style::values::{CustomIdent, KeyframesName};
 use style_traits::ToCss;
 
 #[test]
diff --git a/tests/unit/style/parsing/background.rs b/tests/unit/style/parsing/background.rs
index 2afb894ecf8..a8483ddd0f8 100644
--- a/tests/unit/style/parsing/background.rs
+++ b/tests/unit/style/parsing/background.rs
@@ -3,9 +3,13 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use parsing::parse;
-use style::properties::longhands::{background_attachment, background_clip, background_color, background_image};
-use style::properties::longhands::{background_origin, background_position_x, background_position_y, background_repeat};
 use style::properties::longhands::background_size;
+use style::properties::longhands::{
+    background_attachment, background_clip, background_color, background_image,
+};
+use style::properties::longhands::{
+    background_origin, background_position_x, background_position_y, background_repeat,
+};
 use style::properties::shorthands::background;
 
 #[test]
diff --git a/tests/unit/style/parsing/border.rs b/tests/unit/style/parsing/border.rs
index 635e3c60a71..332c75f4b05 100644
--- a/tests/unit/style/parsing/border.rs
+++ b/tests/unit/style/parsing/border.rs
@@ -4,10 +4,10 @@
 
 use parsing::parse;
 use style::parser::Parse;
-use style::properties::MaybeBoxed;
 use style::properties::longhands::{border_image_outset, border_image_repeat, border_image_slice};
 use style::properties::longhands::{border_image_source, border_image_width};
 use style::properties::shorthands::border_image;
+use style::properties::MaybeBoxed;
 use style::values::specified::BorderRadius;
 use style_traits::ToCss;
 
diff --git a/tests/unit/style/parsing/inherited_text.rs b/tests/unit/style/parsing/inherited_text.rs
index 6f923887c4d..b26c930cb63 100644
--- a/tests/unit/style/parsing/inherited_text.rs
+++ b/tests/unit/style/parsing/inherited_text.rs
@@ -8,7 +8,7 @@ use style::values::generics::text::Spacing;
 #[test]
 fn negative_letter_spacing_should_parse_properly() {
     use style::properties::longhands::letter_spacing;
-    use style::values::specified::length::{Length, NoCalcLength, FontRelativeLength};
+    use style::values::specified::length::{FontRelativeLength, Length, NoCalcLength};
 
     let negative_value = parse_longhand!(letter_spacing, "-0.5em");
     let expected = Spacing::Value(Length::NoCalc(NoCalcLength::FontRelative(
@@ -20,7 +20,7 @@ fn negative_letter_spacing_should_parse_properly() {
 #[test]
 fn negative_word_spacing_should_parse_properly() {
     use style::properties::longhands::word_spacing;
-    use style::values::specified::length::{NoCalcLength, LengthOrPercentage, FontRelativeLength};
+    use style::values::specified::length::{FontRelativeLength, LengthOrPercentage, NoCalcLength};
 
     let negative_value = parse_longhand!(word_spacing, "-0.5em");
     let expected = Spacing::Value(LengthOrPercentage::Length(NoCalcLength::FontRelative(
diff --git a/tests/unit/style/parsing/mod.rs b/tests/unit/style/parsing/mod.rs
index a801b3d6605..27256a4b12c 100644
--- a/tests/unit/style/parsing/mod.rs
+++ b/tests/unit/style/parsing/mod.rs
@@ -8,7 +8,7 @@ use cssparser::{Parser, ParserInput};
 use style::context::QuirksMode;
 use style::parser::ParserContext;
 use style::stylesheets::{CssRuleType, Origin};
-use style_traits::{ParsingMode, ParseError};
+use style_traits::{ParseError, ParsingMode};
 
 fn parse<T, F>(f: F, s: &'static str) -> Result<T, ParseError<'static>>
 where
diff --git a/tests/unit/style/parsing/selectors.rs b/tests/unit/style/parsing/selectors.rs
index 8fbfbfc4f24..74c8376dce9 100644
--- a/tests/unit/style/parsing/selectors.rs
+++ b/tests/unit/style/parsing/selectors.rs
@@ -5,7 +5,7 @@
 use cssparser::{Parser, ParserInput, ToCss};
 use selectors::parser::SelectorList;
 use style::selector_parser::{SelectorImpl, SelectorParser};
-use style::stylesheets::{Origin, Namespaces};
+use style::stylesheets::{Namespaces, Origin};
 use style_traits::ParseError;
 
 fn parse_selector<'i, 't>(
diff --git a/tests/unit/style/properties/mod.rs b/tests/unit/style/properties/mod.rs
index 0ceaf7c02e5..bcc8b2ef86a 100644
--- a/tests/unit/style/properties/mod.rs
+++ b/tests/unit/style/properties/mod.rs
@@ -6,7 +6,7 @@ use cssparser::{Parser, ParserInput};
 use style::context::QuirksMode;
 use style::parser::ParserContext;
 use style::stylesheets::{CssRuleType, Origin};
-use style_traits::{ParsingMode, ParseError};
+use style_traits::{ParseError, ParsingMode};
 
 fn parse<T, F>(f: F, s: &'static str) -> Result<T, ParseError<'static>>
 where
diff --git a/tests/unit/style/properties/scaffolding.rs b/tests/unit/style/properties/scaffolding.rs
index 56fa88165ef..fd1f169991d 100644
--- a/tests/unit/style/properties/scaffolding.rs
+++ b/tests/unit/style/properties/scaffolding.rs
@@ -4,7 +4,7 @@
 
 use serde_json::{self, Value};
 use std::env;
-use std::fs::{File, remove_file};
+use std::fs::{remove_file, File};
 use std::path::Path;
 use std::process::Command;
 
diff --git a/tests/unit/style/properties/serialization.rs b/tests/unit/style/properties/serialization.rs
index cf37bcc0ca9..72d7798ba68 100644
--- a/tests/unit/style/properties/serialization.rs
+++ b/tests/unit/style/properties/serialization.rs
@@ -4,14 +4,14 @@
 
 use properties::{parse, parse_input};
 use style::computed_values::display::T as Display;
-use style::properties::{PropertyDeclaration, Importance};
 use style::properties::declaration_block::PropertyDeclarationBlock;
 use style::properties::parse_property_declaration_list;
-use style::values::RGBA;
-use style::values::specified::{BorderStyle, BorderSideWidth, Color};
-use style::values::specified::{Length, LengthOrPercentage, LengthOrPercentageOrAuto};
-use style::values::specified::NoCalcLength;
+use style::properties::{Importance, PropertyDeclaration};
 use style::values::specified::url::SpecifiedUrl;
+use style::values::specified::NoCalcLength;
+use style::values::specified::{BorderSideWidth, BorderStyle, Color};
+use style::values::specified::{Length, LengthOrPercentage, LengthOrPercentageOrAuto};
+use style::values::RGBA;
 use style_traits::ToCss;
 use stylesheets::block_from;
 
@@ -486,10 +486,10 @@ mod shorthand_serialization {
     }
 
     mod list_style {
+        use super::*;
         use style::properties::longhands::list_style_position::SpecifiedValue as ListStylePosition;
         use style::properties::longhands::list_style_type::SpecifiedValue as ListStyleType;
         use style::values::generics::url::UrlOrNone as ImageUrlOrNone;
-        use super::*;
 
         #[test]
         fn list_style_should_show_all_properties_when_values_are_set() {
diff --git a/tests/unit/style/rule_tree/bench.rs b/tests/unit/style/rule_tree/bench.rs
index 4172431356e..243e2e2d579 100644
--- a/tests/unit/style/rule_tree/bench.rs
+++ b/tests/unit/style/rule_tree/bench.rs
@@ -7,12 +7,12 @@ use rayon;
 use servo_arc::Arc;
 use servo_url::ServoUrl;
 use style::context::QuirksMode;
-use style::error_reporting::{ParseErrorReporter, ContextualParseError};
+use style::error_reporting::{ContextualParseError, ParseErrorReporter};
 use style::media_queries::MediaList;
 use style::properties::{longhands, Importance, PropertyDeclaration, PropertyDeclarationBlock};
 use style::rule_tree::{CascadeLevel, RuleTree, StrongRuleNode, StyleSource};
 use style::shared_lock::SharedRwLock;
-use style::stylesheets::{Origin, Stylesheet, CssRule};
+use style::stylesheets::{CssRule, Origin, Stylesheet};
 use style::thread_state::{self, ThreadState};
 use test::{self, Bencher};
 
diff --git a/tests/unit/style/str.rs b/tests/unit/style/str.rs
index 78a870dced0..bc000df43ea 100644
--- a/tests/unit/style/str.rs
+++ b/tests/unit/style/str.rs
@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use style::str::{split_html_space_chars, str_join, starts_with_ignore_ascii_case};
+use style::str::{split_html_space_chars, starts_with_ignore_ascii_case, str_join};
 
 #[test]
 pub fn split_html_space_chars_whitespace() {
diff --git a/tests/unit/style/stylesheets.rs b/tests/unit/style/stylesheets.rs
index 74a2c18e94b..d951b7c6f0e 100644
--- a/tests/unit/style/stylesheets.rs
+++ b/tests/unit/style/stylesheets.rs
@@ -3,32 +3,34 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use cssparser::{self, SourceLocation};
-use html5ever::{Namespace as NsAtom};
+use html5ever::Namespace as NsAtom;
 use parking_lot::RwLock;
 use selectors::attr::*;
 use selectors::parser::*;
 use servo_arc::Arc;
 use servo_atoms::Atom;
-use servo_config::prefs::{PREFS, PrefValue};
+use servo_config::prefs::{PrefValue, PREFS};
 use servo_url::ServoUrl;
 use std::borrow::ToOwned;
 use std::cell::RefCell;
 use std::sync::atomic::AtomicBool;
 use style::context::QuirksMode;
-use style::error_reporting::{ParseErrorReporter, ContextualParseError};
+use style::error_reporting::{ContextualParseError, ParseErrorReporter};
 use style::media_queries::MediaList;
+use style::properties::longhands::{self, animation_timing_function};
 use style::properties::{CSSWideKeyword, CustomDeclaration};
 use style::properties::{CustomDeclarationValue, Importance};
 use style::properties::{PropertyDeclaration, PropertyDeclarationBlock};
-use style::properties::longhands::{self, animation_timing_function};
 use style::shared_lock::SharedRwLock;
-use style::stylesheets::{Origin, Namespaces};
-use style::stylesheets::{Stylesheet, StylesheetContents, NamespaceRule, CssRule, CssRules, StyleRule, KeyframesRule};
-use style::stylesheets::keyframes_rule::{Keyframe, KeyframeSelector, KeyframePercentage};
-use style::values::{KeyframesName, CustomIdent};
+use style::stylesheets::keyframes_rule::{Keyframe, KeyframePercentage, KeyframeSelector};
+use style::stylesheets::{
+    CssRule, CssRules, KeyframesRule, NamespaceRule, StyleRule, Stylesheet, StylesheetContents,
+};
+use style::stylesheets::{Namespaces, Origin};
 use style::values::computed::Percentage;
-use style::values::specified::{LengthOrPercentageOrAuto, PositionComponent};
 use style::values::specified::TimingFunction;
+use style::values::specified::{LengthOrPercentageOrAuto, PositionComponent};
+use style::values::{CustomIdent, KeyframesName};
 
 pub fn block_from<I>(iterable: I) -> PropertyDeclarationBlock
 where
diff --git a/tests/unit/style/stylist.rs b/tests/unit/style/stylist.rs
index 80d017611b7..e868505c3d1 100644
--- a/tests/unit/style/stylist.rs
+++ b/tests/unit/style/stylist.rs
@@ -10,14 +10,14 @@ use servo_arc::Arc;
 use servo_atoms::Atom;
 use style::context::QuirksMode;
 use style::media_queries::{Device, MediaType};
-use style::properties::{PropertyDeclarationBlock, PropertyDeclaration};
 use style::properties::{longhands, Importance};
+use style::properties::{PropertyDeclaration, PropertyDeclarationBlock};
 use style::selector_map::SelectorMap;
 use style::selector_parser::{SelectorImpl, SelectorParser};
 use style::shared_lock::SharedRwLock;
 use style::stylesheets::StyleRule;
-use style::stylist::{Stylist, Rule};
 use style::stylist::needs_revalidation_for_testing;
+use style::stylist::{Rule, Stylist};
 use style::thread_state::{self, ThreadState};
 
 /// Helper method to get some Rules from selector strings.
diff --git a/tests/unit/style/viewport.rs b/tests/unit/style/viewport.rs
index 2ad0c773c0a..61fb725a56d 100644
--- a/tests/unit/style/viewport.rs
+++ b/tests/unit/style/viewport.rs
@@ -6,19 +6,19 @@ use cssparser::{Parser, ParserInput};
 use euclid::TypedScale;
 use euclid::TypedSize2D;
 use servo_arc::Arc;
-use servo_config::prefs::{PREFS, PrefValue};
+use servo_config::prefs::{PrefValue, PREFS};
 use servo_url::ServoUrl;
 use style::context::QuirksMode;
 use style::media_queries::{Device, MediaList, MediaType};
 use style::parser::ParserContext;
 use style::shared_lock::{SharedRwLock, StylesheetGuards};
-use style::stylesheets::{CssRuleType, Stylesheet, StylesheetInDocument, Origin};
 use style::stylesheets::viewport_rule::*;
+use style::stylesheets::{CssRuleType, Origin, Stylesheet, StylesheetInDocument};
 use style::values::specified::LengthOrPercentageOrAuto::{self, Auto};
 use style::values::specified::NoCalcLength::{self, ViewportPercentage};
 use style::values::specified::ViewportPercentageLength::Vw;
-use style_traits::{ParsingMode, PinchZoomFactor};
 use style_traits::viewport::*;
+use style_traits::{ParsingMode, PinchZoomFactor};
 
 macro_rules! stylesheet {
     ($css:expr, $origin:ident) => {