From 57aa01a3bcd8849bec552b007000fe2b4ff39ae6 Mon Sep 17 00:00:00 2001
From: Henry Sloan <henryksloan@gmail.com>
Date: Mon, 12 Aug 2024 18:48:03 -0700
Subject: [PATCH] Add must_use attribute to Coroutine trait

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

diff --git a/library/core/src/ops/coroutine.rs b/library/core/src/ops/coroutine.rs
index 13df888d24c5c..c7d596d74c383 100644
--- a/library/core/src/ops/coroutine.rs
+++ b/library/core/src/ops/coroutine.rs
@@ -69,6 +69,7 @@ pub enum CoroutineState<Y, R> {
 #[lang = "coroutine"]
 #[unstable(feature = "coroutine_trait", issue = "43122")]
 #[fundamental]
+#[must_use = "coroutines are lazy and do nothing unless resumed"]
 pub trait Coroutine<R = ()> {
     /// The type of value this coroutine yields.
     ///