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-rw-r--r--src/libstd/num/f32.rs1
1 files changed, 0 insertions, 1 deletions
diff --git a/src/libstd/num/f32.rs b/src/libstd/num/f32.rs
index b8a70d756ef..9d0b9c3bbb4 100644
--- a/src/libstd/num/f32.rs
+++ b/src/libstd/num/f32.rs
@@ -14,7 +14,6 @@
 
 #![stable(feature = "rust1", since = "1.0.0")]
 #![allow(missing_docs)]
-#![allow(unsigned_negation)]
 
 use prelude::v1::*;