From d72eac8465dd6a7f3bd8f5e59e8e2c8ad1151e22 Mon Sep 17 00:00:00 2001
From: yukang <moorekang@gmail.com>
Date: Fri, 6 Feb 2026 23:03:19 +0800
Subject: [PATCH] add must_use for FileTimes

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

diff --git a/library/std/src/fs.rs b/library/std/src/fs.rs
index a24baad61501..cf6f9594c002 100644
--- a/library/std/src/fs.rs
+++ b/library/std/src/fs.rs
@@ -277,6 +277,7 @@ pub struct OpenOptions(fs_imp::OpenOptions);
 /// Representation of the various timestamps on a file.
 #[derive(Copy, Clone, Debug, Default)]
 #[stable(feature = "file_set_times", since = "1.75.0")]
+#[must_use = "must be applied to a file via `File::set_times` to have any effect"]
 pub struct FileTimes(fs_imp::FileTimes);
 
 /// Representation of the various permissions on a file.