Don't ICE when deducing future output if other errors already occurred

1 files changed, 12 insertions, 0 deletions

diff --git a/tests/ui/async-await/inference_var_self_argument.rs b/tests/ui/async-await/inference_var_self_argument.rs
new file mode 100644
index 00000000000..fd8482f86b4
--- /dev/null
+++ b/tests/ui/async-await/inference_var_self_argument.rs
@@ -0,0 +1,12 @@
+//! This is a regression test for an ICE.
+// edition: 2021
+
+trait Foo {
+    async fn foo(self: &dyn Foo) {
+        //~^ ERROR: `Foo` cannot be made into an object
+        //~| ERROR invalid `self` parameter type: &dyn Foo
+        todo!()
+    }
+}
+
+fn main() {}