From 6529872afcd4934cd16202a67c747df6674f76c6 Mon Sep 17 00:00:00 2001
From: Aaron Turon <aturon@mozilla.com>
Date: Thu, 2 Apr 2015 22:22:44 -0700
Subject: [PATCH] Adjust `AsRef` impl for `Cow`

The existing impl had the too-strong requirement of `Clone`, when only
`ToOwned` was needed.
---
 src/libcollections/borrow.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libcollections/borrow.rs b/src/libcollections/borrow.rs
index 2fe769b73f5cc..4503ad14e92b4 100644
--- a/src/libcollections/borrow.rs
+++ b/src/libcollections/borrow.rs
@@ -342,7 +342,7 @@ impl<'a,  B: ?Sized> IntoCow<'a, B> for Cow<'a, B> where B: ToOwned {
 }
 
 #[stable(feature = "rust1", since = "1.0.0")]
-impl<'a, T: Clone> AsRef<T> for Cow<'a, T> {
+impl<'a, T: ?Sized + ToOwned> AsRef<T> for Cow<'a, T> {
     fn as_ref(&self) -> &T {
         self
     }