From 9c5ae20c5952824614a3d2c67a467f2c0d0d9d86 Mon Sep 17 00:00:00 2001
From: leocth <leocth31@gmail.com>
Date: Sun, 26 Jun 2022 10:48:17 +0800
Subject: [PATCH] forgot about the feature flag in the doctest

---
 library/core/src/sync/atomic.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/library/core/src/sync/atomic.rs b/library/core/src/sync/atomic.rs
index 92afdab2999..b974b431b78 100644
--- a/library/core/src/sync/atomic.rs
+++ b/library/core/src/sync/atomic.rs
@@ -872,6 +872,7 @@ pub fn fetch_xor(&self, val: bool, order: Ordering) -> bool {
     /// # Examples
     ///
     /// ```
+    /// #![feature(atomic_bool_fetch_not)]
     /// use std::sync::atomic::{AtomicBool, Ordering};
     ///
     /// let foo = AtomicBool::new(true);
-- 
2.44.0