1 files changed, 21 insertions, 0 deletions

diff --git a/tests/ui/impl-trait/issues/issue-55872-3.rs b/tests/ui/impl-trait/issues/issue-55872-3.rs
new file mode 100644
index 00000000000..698e7f36234
--- /dev/null
+++ b/tests/ui/impl-trait/issues/issue-55872-3.rs
@@ -0,0 +1,21 @@
+//@ edition:2018
+//@compile-flags: --diagnostic-width=300
+
+#![feature(impl_trait_in_assoc_type)]
+
+pub trait Bar {
+    type E: Copy;
+
+    fn foo<T>() -> Self::E;
+}
+
+impl<S> Bar for S {
+    type E = impl std::marker::Copy;
+    fn foo<T>() -> Self::E {
+        //~^ ERROR : Copy` is not satisfied [E0277]
+        //~| ERROR type parameter `T` is part of concrete type
+        async {}
+    }
+}
+
+fn main() {}