From 734f7244723f579433b7defcd1fd1c2e66406737 Mon Sep 17 00:00:00 2001
From: Zachary S <zasample18+github@gmail.com>
Date: Fri, 2 Sep 2022 02:23:56 -0500
Subject: [PATCH] Change undefined-behavior doctests from ignore to no_run.

---
 library/alloc/src/rc.rs   | 4 ++--
 library/alloc/src/sync.rs | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/library/alloc/src/rc.rs b/library/alloc/src/rc.rs
index c1db035167b..2f41ca689ba 100644
--- a/library/alloc/src/rc.rs
+++ b/library/alloc/src/rc.rs
@@ -1111,7 +1111,7 @@ impl<T: ?Sized> Rc<T> {
     /// assert_eq!(*x, "foo");
     /// ```
     /// Other `Rc` pointers to the same allocation must be to the same type.
-    /// ```ignore
+    /// ```no_run
     /// #![feature(get_mut_unchecked)]
     ///
     /// use std::rc::Rc;
@@ -1125,7 +1125,7 @@ impl<T: ?Sized> Rc<T> {
     /// println!("{}", &*x); // Invalid UTF-8 in a str
     /// ```
     /// Other `Rc` pointers to the same allocation must be to the exact same type, including lifetimes.
-    /// ```ignore
+    /// ```no_run
     /// #![feature(get_mut_unchecked)]
     ///
     /// use std::rc::Rc;
diff --git a/library/alloc/src/sync.rs b/library/alloc/src/sync.rs
index e32ce5a9891..4ef3c528c44 100644
--- a/library/alloc/src/sync.rs
+++ b/library/alloc/src/sync.rs
@@ -1650,7 +1650,7 @@ impl<T: ?Sized> Arc<T> {
     /// assert_eq!(*x, "foo");
     /// ```
     /// Other `Arc` pointers to the same allocation must be to the same type.
-    /// ```ignore
+    /// ```no_run
     /// #![feature(get_mut_unchecked)]
     ///
     /// use std::sync::Arc;
@@ -1664,7 +1664,7 @@ impl<T: ?Sized> Arc<T> {
     /// println!("{}", &*x); // Invalid UTF-8 in a str
     /// ```
     /// Other `Arc` pointers to the same allocation must be to the exact same type, including lifetimes.
-    /// ```ignore
+    /// ```no_run
     /// #![feature(get_mut_unchecked)]
     ///
     /// use std::sync::Arc;