1 files changed, 20 insertions, 0 deletions
diff --git a/src/test/ui/lint/must_not_suspend/dedup.rs b/src/test/ui/lint/must_not_suspend/dedup.rs
new file mode 100644
index 000000000..81a08579b
--- /dev/null
+++ b/src/test/ui/lint/must_not_suspend/dedup.rs
@@ -0,0 +1,20 @@
+// edition:2018
+#![feature(must_not_suspend)]
+#![deny(must_not_suspend)]
+
+#[must_not_suspend]
+struct No {}
+
+async fn shushspend() {}
+
+async fn wheeee<T>(t: T) {
+    shushspend().await;
+    drop(t);
+}
+
+async fn yes() {
+    wheeee(&No {}).await; //~ ERROR `No` held across
+}
+
+fn main() {
+}