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-rw-r--r--src/libcore/tests/ptr.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libcore/tests/ptr.rs b/src/libcore/tests/ptr.rs
index df5f4faa60e..d5a079da989 100644
--- a/src/libcore/tests/ptr.rs
+++ b/src/libcore/tests/ptr.rs
@@ -163,7 +163,7 @@ fn test_as_mut() {
         // Pointers to unsized types -- slices
         let s: &mut [u8] = &mut [1, 2, 3];
         let ms: *mut [u8] = s;
-        assert_eq!(ms.as_mut().unwrap() as *mut _, s as *mut _);
+        assert_eq!(ms.as_mut(), Some(&mut [1, 2, 3]));
 
         let mz: *mut [u8] = &mut [];
         assert_eq!(mz.as_mut(), Some(&mut [][..]));