Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 13 insertions, 0 deletions

diff --git a/src/test/ui/lint/must_not_suspend/mutex.rs b/src/test/ui/lint/must_not_suspend/mutex.rs
new file mode 100644
index 000000000..7bb895e7d
--- /dev/null
+++ b/src/test/ui/lint/must_not_suspend/mutex.rs
@@ -0,0 +1,13 @@
+// edition:2018
+#![feature(must_not_suspend)]
+#![deny(must_not_suspend)]
+
+async fn other() {}
+
+pub async fn uhoh(m: std::sync::Mutex<()>) {
+    let _guard = m.lock().unwrap(); //~ ERROR `MutexGuard` held across
+    other().await;
+}
+
+fn main() {
+}