fix futures aliasing mutable and shared ref

rust-lang · Nov 28, 2018 · 46a6831 · 46a6831
1 parent b68fc18
commit 46a6831
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/libstd/future.rs b/src/libstd/future.rs
@@ -95,10 +95,10 @@ where
  });
  let _reset_waker = SetOnDrop(waker_ptr);
 
- let mut waker_ptr = waker_ptr.expect(
+ let waker_ptr = waker_ptr.expect(
  "TLS LocalWaker not set. This is a rustc bug. \
  Please file an issue on https://github.com/rust-lang/rust.");
- unsafe { f(waker_ptr.as_mut()) }
+ unsafe { f(waker_ptr.as_ref()) }
 }
 
 #[unstable(feature = "gen_future", issue = "50547")]