1 files changed, 21 insertions, 0 deletions
diff --git a/src/test/ui/associated-types/issue-72806.rs b/src/test/ui/associated-types/issue-72806.rs
new file mode 100644
index 000000000..947582503
--- /dev/null
+++ b/src/test/ui/associated-types/issue-72806.rs
@@ -0,0 +1,21 @@
+trait Bar {
+    type Ok;
+    type Sibling: Bar2<Ok=char>;
+}
+trait Bar2 {
+    type Ok;
+}
+
+struct Foo;
+struct Foo2;
+
+impl Bar for Foo {
+    type Ok = ();
+    type Sibling = Foo2;
+    //~^ ERROR type mismatch resolving `<Foo2 as Bar2>::Ok == char`
+}
+impl Bar2 for Foo2 {
+    type Ok = u32;
+}
+
+fn main() {}