1 files changed, 12 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-21946.rs b/tests/ui/issues/issue-21946.rs
new file mode 100644
index 000000000..d0c052cb2
--- /dev/null
+++ b/tests/ui/issues/issue-21946.rs
@@ -0,0 +1,12 @@
+trait Foo {
+    type A;
+}
+
+struct FooStruct;
+
+impl Foo for FooStruct {
+    type A = <FooStruct as Foo>::A;
+    //~^ ERROR overflow evaluating the requirement `<FooStruct as Foo>::A == _`
+}
+
+fn main() {}