From a61c8413852a704f9f06e4fead7742fe0a7c68da Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Wed, 3 Aug 2022 12:44:21 -0400
Subject: [PATCH] actually call assert_send_and_sync

---
 library/core/tests/slice.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/library/core/tests/slice.rs b/library/core/tests/slice.rs
index 0656109e9db88..b8f6fe6961a8e 100644
--- a/library/core/tests/slice.rs
+++ b/library/core/tests/slice.rs
@@ -1197,7 +1197,6 @@ fn chunks_mut_are_send_and_sync() {
     use std::slice::{ChunksExactMut, ChunksMut, RChunksExactMut, RChunksMut};
     use std::sync::MutexGuard;
 
-    #[allow(unused)]
     fn assert_send_and_sync()
     where
         ChunksMut<'static, Cell<i32>>: Send,
@@ -1210,6 +1209,8 @@ fn chunks_mut_are_send_and_sync() {
         RChunksExactMut<'static, MutexGuard<'static, u32>>: Sync,
     {
     }
+
+    assert_send_and_sync();
 }
 
 #[test]