---

yaml
---
r: 148894
b: refs/heads/try2
c: 4f462a0
h: refs/heads/master
v: v3

Author: csherratt

[refs]

@@ -5,7 +5,7 @@ refs/heads/snap-stage3: 78a7676898d9f80ab540c6df5d4c9ce35bb50463
 refs/heads/try: 519addf6277dbafccbb4159db4b710c37eaa2ec5
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b
-refs/heads/try2: 06a8d59ded67dfaa589112ceb8a8e031bc575249
+refs/heads/try2: 4f462a05066ea4ddbe65d3033402e7c80247ddde
 refs/heads/dist-snap: ba4081a5a8573875fed17545846f6f6902c8ba8d
 refs/tags/release-0.2: c870d2dffb391e14efb05aa27898f1f6333a9596
 refs/tags/release-0.3: b5f0d0f648d9a6153664837026ba1be43d3e2503

branches/try2/src/libextra/arc.rs

@@ -559,7 +559,7 @@ pub struct CowArc<T> { priv x: UnsafeArc<T> }
 /// mutation of the contents if there is only a single reference to
 /// the data. If there are multiple references the data is automatically
 /// cloned and the task modifies the cloned data in place of the shared data.
-impl<T:Clone+Send> CowArc<T> {
+impl<T:Clone+Send+Freeze> CowArc<T> {
     /// Create a copy-on-write atomically reference counted wrapper
     #[inline]
     pub fn new(data: T) -> CowArc<T> {
@@ -583,7 +583,7 @@ impl<T:Clone+Send> CowArc<T> {
     }
 }
 
-impl<T:Clone+Send> Clone for CowArc<T> {
+impl<T:Clone+Send+Freeze> Clone for CowArc<T> {
     /// Duplicate a Copy-on-write Arc. See arc::clone for more details.
     #[inline]
     fn clone(&self) -> CowArc<T> {