1 files changed, 8 insertions, 0 deletions
diff --git a/src/test/ui/resolve/issue-23305.rs b/src/test/ui/resolve/issue-23305.rs
new file mode 100644
index 000000000..95635e12a
--- /dev/null
+++ b/src/test/ui/resolve/issue-23305.rs
@@ -0,0 +1,8 @@
+pub trait ToNbt<T> {
+    fn new(val: T) -> Self;
+}
+
+impl dyn ToNbt<Self> {}
+//~^ ERROR cycle detected
+
+fn main() {}