1 files changed, 19 insertions, 0 deletions
diff --git a/src/test/ui/type-alias-impl-trait/bounds-are-checked-2.rs b/src/test/ui/type-alias-impl-trait/bounds-are-checked-2.rs
new file mode 100644
index 000000000..55b4dc8dc
--- /dev/null
+++ b/src/test/ui/type-alias-impl-trait/bounds-are-checked-2.rs
@@ -0,0 +1,19 @@
+// Make sure that we check that impl trait types implement the traits that they
+// claim to.
+
+#![feature(type_alias_impl_trait)]
+
+type X<T> = impl Clone;
+
+fn f<T: Clone>(t: T) -> X<T> {
+    t
+    //~^ ERROR the trait bound `T: Clone` is not satisfied
+}
+
+fn g<T>(o: Option<X<T>>) -> Option<X<T>> {
+    o.clone()
+}
+
+fn main() {
+    g(None::<X<&mut ()>>);
+}