1 files changed, 4 insertions, 0 deletions
diff --git a/src/test/ui/async-await/async-trait-fn.rs b/src/test/ui/async-await/async-trait-fn.rs
index f0403b76620..e2062e82725 100644
--- a/src/test/ui/async-await/async-trait-fn.rs
+++ b/src/test/ui/async-await/async-trait-fn.rs
@@ -2,6 +2,10 @@
 trait T {
     async fn foo() {} //~ ERROR functions in traits cannot be declared `async`
     async fn bar(&self) {} //~ ERROR functions in traits cannot be declared `async`
+    async fn baz() { //~ ERROR functions in traits cannot be declared `async`
+        // Nested item must not ICE.
+        fn a() {}
+    }
 }
 
 fn main() {}