PinMut::get_mut can also preserve the lifetime

diff --git a/src/libcore/mem.rs b/src/libcore/mem.rs
index a062ec7ee3df2c2f49c2cf82863a17f57e8f7835..74eb219e45d78f10138a276889393950feea5082 100644 (file)
--- a/src/libcore/mem.rs
+++ b/src/libcore/mem.rs
@@ -1141,7 +1141,7 @@ pub fn borrow<'b>(this: &'b mut PinMut<'a, T>) -> PinMut<'b, T> {
     /// the data out of the mutable reference you receive when you call this
     /// function.
     #[unstable(feature = "pin", issue = "49150")]
-    pub unsafe fn get_mut<'b>(this: &'b mut PinMut<'a, T>) -> &'b mut T {
+    pub unsafe fn get_mut(this: PinMut<'a, T>) -> &'a mut T {
         this.inner
     }