From 36a11417fafcbfae0500884df2d4b6dd2c5e5a0f Mon Sep 17 00:00:00 2001
From: 5225225 <5225225@mailbox.org>
Date: Sun, 9 Jan 2022 22:15:23 +0000
Subject: Make message for &T -> &mut T transmute more accurate

---
 src/test/ui/transmute/transmute-imut-to-mut.rs     | 2 +-
 src/test/ui/transmute/transmute-imut-to-mut.stderr | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/test/ui/transmute/transmute-imut-to-mut.rs b/src/test/ui/transmute/transmute-imut-to-mut.rs
index 8e34e0ae8c7..9f3f76c1ef3 100644
--- a/src/test/ui/transmute/transmute-imut-to-mut.rs
+++ b/src/test/ui/transmute/transmute-imut-to-mut.rs
@@ -4,5 +4,5 @@ use std::mem::transmute;
 
 fn main() {
     let _a: &mut u8 = unsafe { transmute(&1u8) };
-    //~^ ERROR mutating transmuted &mut T from &T may cause undefined behavior
+    //~^ ERROR transmuting &T to &mut T is undefined behavior, even if the reference is unused, consider instead using an UnsafeCell
 }
diff --git a/src/test/ui/transmute/transmute-imut-to-mut.stderr b/src/test/ui/transmute/transmute-imut-to-mut.stderr
index d323c1a73b7..1e9dff3ce89 100644
--- a/src/test/ui/transmute/transmute-imut-to-mut.stderr
+++ b/src/test/ui/transmute/transmute-imut-to-mut.stderr
@@ -1,4 +1,4 @@
-error: mutating transmuted &mut T from &T may cause undefined behavior, consider instead using an UnsafeCell
+error: transmuting &T to &mut T is undefined behavior, even if the reference is unused, consider instead using an UnsafeCell
   --> $DIR/transmute-imut-to-mut.rs:6:32
    |
 LL |     let _a: &mut u8 = unsafe { transmute(&1u8) };
-- 
cgit 1.4.1-3-g733a5