1 files changed, 13 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-21950.rs b/tests/ui/issues/issue-21950.rs
new file mode 100644
index 000000000..72a98bd8d
--- /dev/null
+++ b/tests/ui/issues/issue-21950.rs
@@ -0,0 +1,13 @@
+trait Add<Rhs=Self> {
+    type Output;
+}
+
+impl Add for i32 {
+    type Output = i32;
+}
+
+fn main() {
+    let x = &10 as &dyn Add;
+    //~^ ERROR E0393
+    //~| ERROR E0191
+}