4 files changed, 72 insertions, 0 deletions
diff --git a/ports/geckolib/Cargo.lock b/ports/geckolib/Cargo.lock
index 680e0dd1f47..1289598dd57 100644
--- a/ports/geckolib/Cargo.lock
+++ b/ports/geckolib/Cargo.lock
@@ -4,6 +4,7 @@ version = "0.0.1"
 dependencies = [
  "app_units 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "cssparser 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "env_logger 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "euclid 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize_plugin 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -21,6 +22,14 @@ dependencies = [
 ]
 
 [[package]]
+name = "aho-corasick"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "app_units"
 version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -181,6 +190,15 @@ version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "env_logger"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 0.1.69 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "euclid"
 version = "0.6.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -277,6 +295,14 @@ version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "memchr"
+version = "0.1.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "num"
 version = "0.1.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -412,6 +438,23 @@ dependencies = [
 ]
 
 [[package]]
+name = "regex"
+version = "0.1.69"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "aho-corasick 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thread_local 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "utf8-ranges 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "rustc-serialize"
 version = "0.3.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -524,6 +567,23 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "thread-id"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "kernel32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "thread_local"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "thread-id 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "time"
 version = "0.1.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -568,6 +628,11 @@ dependencies = [
 ]
 
 [[package]]
+name = "utf8-ranges"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "util"
 version = "0.0.1"
 dependencies = [
diff --git a/ports/geckolib/Cargo.toml b/ports/geckolib/Cargo.toml
index b672f8cc298..2778792afcd 100644
--- a/ports/geckolib/Cargo.toml
+++ b/ports/geckolib/Cargo.toml
@@ -27,3 +27,4 @@ log = {version = "0.3.5", features = ["release_max_level_info"]}
 plugins = {path = "../../components/plugins"}
 util = {path = "../../components/util"}
 style = {path = "../../components/style", features = ["gecko"]}
+env_logger = "0.3"
diff --git a/ports/geckolib/glue.rs b/ports/geckolib/glue.rs
index eb456937f6f..591b560e9b9 100644
--- a/ports/geckolib/glue.rs
+++ b/ports/geckolib/glue.rs
@@ -9,6 +9,7 @@ use bindings::{RawGeckoDocument, RawGeckoNode};
 use bindings::{RawServoStyleSet, RawServoStyleSheet, ServoComputedValues, ServoNodeData};
 use bindings::{nsIAtom};
 use data::PerDocumentStyleData;
+use env_logger;
 use euclid::Size2D;
 use gecko_style_structs::SheetParsingMode;
 use properties::GeckoComputedValues;
@@ -63,6 +64,10 @@ pub fn pseudo_element_from_atom(pseudo: *mut nsIAtom,
 
 #[no_mangle]
 pub extern "C" fn Servo_Initialize() -> () {
+    // Enable standard Rust logging.
+    //
+    // See https://doc.rust-lang.org/log/env_logger/index.html for instructions.
+    env_logger::init().unwrap();
 }
 
 #[no_mangle]
diff --git a/ports/geckolib/lib.rs b/ports/geckolib/lib.rs
index 63163583774..7d31b0c3fb3 100644
--- a/ports/geckolib/lib.rs
+++ b/ports/geckolib/lib.rs
@@ -15,6 +15,7 @@
 extern crate app_units;
 #[macro_use]
 extern crate cssparser;
+extern crate env_logger;
 extern crate euclid;
 extern crate heapsize;
 #[macro_use]