1 files changed, 13 insertions, 0 deletions
diff --git a/src/test/ui/sized/recursive-type-2.rs b/src/test/ui/sized/recursive-type-2.rs
new file mode 100644
index 000000000..7d95417a6
--- /dev/null
+++ b/src/test/ui/sized/recursive-type-2.rs
@@ -0,0 +1,13 @@
+// build-fail
+//~^ ERROR cycle detected when computing layout of `Foo<()>`
+
+trait A { type Assoc: ?Sized; }
+
+impl A for () {
+    type Assoc = Foo<()>;
+}
+struct Foo<T: A>(T::Assoc);
+
+fn main() {
+    let x: Foo<()>;
+}