1 files changed, 16 insertions, 0 deletions
diff --git a/src/test/ui/impl-trait/type-arg-mismatch-due-to-impl-trait.rs b/src/test/ui/impl-trait/type-arg-mismatch-due-to-impl-trait.rs
new file mode 100644
index 000000000..ecfa5c69e
--- /dev/null
+++ b/src/test/ui/impl-trait/type-arg-mismatch-due-to-impl-trait.rs
@@ -0,0 +1,16 @@
+trait Foo {
+    type T;
+    fn foo(&self, t: Self::T);
+//~^ NOTE expected 0 type parameters
+}
+
+impl Foo for u32 {
+    type T = ();
+
+    fn foo(&self, t: impl Clone) {}
+//~^ ERROR method `foo` has 1 type parameter but its trait declaration has 0 type parameters
+//~| NOTE found 1 type parameter
+//~| NOTE `impl Trait` introduces an implicit type parameter
+}
+
+fn main() {}