From cddbb6a75bd4618e6e136e7ec5140b95899ad70b Mon Sep 17 00:00:00 2001
From: Chase Southwood <chase.southwood@gmail.com>
Date: Thu, 4 Dec 2014 03:10:58 -0600
Subject: [PATCH] `DerefMut` should be `for Sized?`

---
 src/libcore/ops.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libcore/ops.rs b/src/libcore/ops.rs
index d85481098e4..7de89e2bc50 100644
--- a/src/libcore/ops.rs
+++ b/src/libcore/ops.rs
@@ -787,7 +787,7 @@ impl<'a, Sized? T> Deref<T> for &'a mut T {
 /// }
 /// ```
 #[lang="deref_mut"]
-pub trait DerefMut<Sized? Result>: Deref<Result> {
+pub trait DerefMut<Sized? Result> for Sized? : Deref<Result> {
     /// The method called to mutably dereference a value
     fn deref_mut<'a>(&'a mut self) -> &'a mut Result;
 }