1 files changed, 13 insertions, 0 deletions
diff --git a/components/script/task_source/dom_manipulation.rs b/components/script/task_source/dom_manipulation.rs
index 75fd4021168..12deff1880e 100644
--- a/components/script/task_source/dom_manipulation.rs
+++ b/components/script/task_source/dom_manipulation.rs
@@ -9,6 +9,7 @@ use dom::eventtarget::EventTarget;
 use dom::window::Window;
 use script_thread::{MainThreadScriptMsg, Runnable, RunnableWrapper, ScriptThread};
 use servo_atoms::Atom;
+use std::fmt;
 use std::result::Result;
 use std::sync::mpsc::Sender;
 use task_source::TaskSource;
@@ -16,6 +17,12 @@ use task_source::TaskSource;
 #[derive(JSTraceable, Clone)]
 pub struct DOMManipulationTaskSource(pub Sender<MainThreadScriptMsg>);
 
+impl fmt::Debug for DOMManipulationTaskSource {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "DOMManipulationTaskSource(...)")
+    }
+}
+
 impl TaskSource for DOMManipulationTaskSource {
     fn queue_with_wrapper<T>(&self,
                              msg: Box<T>,
@@ -56,6 +63,12 @@ impl DOMManipulationTaskSource {
 
 pub struct DOMManipulationTask(pub Box<Runnable + Send>);
 
+impl fmt::Debug for DOMManipulationTask {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "DOMManipulationTask(...)")
+    }
+}
+
 impl DOMManipulationTask {
     pub fn handle_task(self, script_thread: &ScriptThread) {
         if !self.0.is_cancelled() {