1 files changed, 1 insertions, 1 deletions
diff --git a/src/libcore/hash/mod.rs b/src/libcore/hash/mod.rs
index 46f7f90e464..98150fd9f82 100644
--- a/src/libcore/hash/mod.rs
+++ b/src/libcore/hash/mod.rs
@@ -500,7 +500,7 @@ pub struct BuildHasherDefault<H>(marker::PhantomData<H>);
 
 #[stable(since = "1.9.0", feature = "core_impl_debug")]
 impl<H> fmt::Debug for BuildHasherDefault<H> {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.pad("BuildHasherDefault")
     }
 }