diff should not be neded any more

Author: RalfJung

rust-src.diff

@@ -1,36 +0,0 @@
-diff --git a/library/core/tests/mem.rs b/library/core/tests/mem.rs
-index 5e24fa690ef52..5d0fedd4d9ccc 100644
---- a/library/core/tests/mem.rs
-+++ b/library/core/tests/mem.rs
-@@ -1,5 +1,6 @@
- use core::mem::*;
- 
-+#[cfg(panic = "unwind")]
- use std::rc::Rc;
- 
- #[test]
-@@ -250,14 +251,19 @@ fn uninit_write_slice_cloned_mid_panic() {
- 
- #[test]
- fn uninit_write_slice_cloned_no_drop() {
--    let rc = Rc::new(());
-+    #[derive(Clone)]
-+    struct Bomb;
-+
-+    impl Drop for Bomb {
-+        fn drop(&mut self) {
-+            panic!("dropped a bomb! kaboom")
-+        }
-+    }
- 
-     let mut dst = [MaybeUninit::uninit()];
--    let src = [rc.clone()];
-+    let src = [Bomb];
- 
-     MaybeUninit::write_slice_cloned(&mut dst, &src);
- 
--    drop(src);
--
--    assert_eq!(Rc::strong_count(&rc), 2);
-+    forget(src);
- }

rust-version

@@ -1 +1 @@
-nightly-2020-12-19
+nightly-2020-12-21