1 files changed, 11 insertions, 0 deletions
diff --git a/src/test/ui/specialization/defaultimpl/specialization-feature-gate-default.rs b/src/test/ui/specialization/defaultimpl/specialization-feature-gate-default.rs
new file mode 100644
index 000000000..89158b65a
--- /dev/null
+++ b/src/test/ui/specialization/defaultimpl/specialization-feature-gate-default.rs
@@ -0,0 +1,11 @@
+// Check that specialization must be ungated to use the `default` keyword
+
+trait Foo {
+    fn foo(&self);
+}
+
+default impl<T> Foo for T { //~ ERROR specialization is unstable
+    fn foo(&self) {}
+}
+
+fn main() {}