From 261da5fc4b2f015436a206f217300f6616628052 Mon Sep 17 00:00:00 2001
From: Zachary S <zasample18+github@gmail.com>
Date: Sun, 18 Feb 2024 22:43:42 -0600
Subject: [PATCH] Clarify/add `must_use` message for Rc/Arc/Weak::into_raw.

---
 library/alloc/src/rc.rs   | 3 ++-
 library/alloc/src/sync.rs | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/library/alloc/src/rc.rs b/library/alloc/src/rc.rs
index 2cc38d90ffe4d..c6ce42e7aa76c 100644
--- a/library/alloc/src/rc.rs
+++ b/library/alloc/src/rc.rs
@@ -1329,6 +1329,7 @@ impl<T: ?Sized, A: Allocator> Rc<T, A> {
     /// let x_ptr = Rc::into_raw(x);
     /// assert_eq!(unsafe { &*x_ptr }, "hello");
     /// ```
+    #[must_use = "losing the pointer will leak memory"]
     #[stable(feature = "rc_raw", since = "1.17.0")]
     #[rustc_never_returns_null_ptr]
     pub fn into_raw(this: Self) -> *const T {
@@ -2966,7 +2967,7 @@ impl<T: ?Sized, A: Allocator> Weak<T, A> {
     ///
     /// [`from_raw`]: Weak::from_raw
     /// [`as_ptr`]: Weak::as_ptr
-    #[must_use = "`self` will be dropped if the result is not used"]
+    #[must_use = "losing the pointer will leak memory"]
     #[stable(feature = "weak_into_raw", since = "1.45.0")]
     pub fn into_raw(self) -> *const T {
         let result = self.as_ptr();
diff --git a/library/alloc/src/sync.rs b/library/alloc/src/sync.rs
index e1211da4c6176..c7c38d9b45e94 100644
--- a/library/alloc/src/sync.rs
+++ b/library/alloc/src/sync.rs
@@ -2715,7 +2715,7 @@ impl<T: ?Sized, A: Allocator> Weak<T, A> {
     ///
     /// [`from_raw`]: Weak::from_raw
     /// [`as_ptr`]: Weak::as_ptr
-    #[must_use = "`self` will be dropped if the result is not used"]
+    #[must_use = "losing the pointer will leak memory"]
     #[stable(feature = "weak_into_raw", since = "1.45.0")]
     pub fn into_raw(self) -> *const T {
         let result = self.as_ptr();