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, 10 insertions, 0 deletions

diff --git a/src/test/ui/async-await/recursive-async-impl-trait-type.rs b/src/test/ui/async-await/recursive-async-impl-trait-type.rs
new file mode 100644
index 000000000..edc4cb8ac
--- /dev/null
+++ b/src/test/ui/async-await/recursive-async-impl-trait-type.rs
@@ -0,0 +1,10 @@
+// edition:2018
+// Test that impl trait does not allow creating recursive types that are
+// otherwise forbidden when using `async` and `await`.
+
+async fn recursive_async_function() -> () {
+    //~^ ERROR recursion in an `async fn` requires boxing
+    recursive_async_function().await;
+}
+
+fn main() {}