From 06e625f7d582601f5e2ff69ba80f6d3a11632b24 Mon Sep 17 00:00:00 2001
From: John Kugelman <john@kugelman.name>
Date: Mon, 11 Oct 2021 13:57:38 -0400
Subject: Add #[must_use] to as_type conversions

---
 library/std/src/thread/mod.rs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'library/std/src/thread')

diff --git a/library/std/src/thread/mod.rs b/library/std/src/thread/mod.rs
index 7d404aff30e..82847d83ad2 100644
--- a/library/std/src/thread/mod.rs
+++ b/library/std/src/thread/mod.rs
@@ -1031,6 +1031,7 @@ impl ThreadId {
     /// value is entirely opaque -- only equality testing is stable. Note that
     /// it is not guaranteed which values new threads will return, and this may
     /// change across Rust versions.
+    #[must_use]
     #[unstable(feature = "thread_id_value", issue = "67939")]
     pub fn as_u64(&self) -> NonZeroU64 {
         self.0
-- 
cgit 1.4.1-3-g733a5