1 files changed, 35 insertions, 0 deletions
diff --git a/tests/ui/feature-gates/issue-43106-gating-of-unstable.rs b/tests/ui/feature-gates/issue-43106-gating-of-unstable.rs
new file mode 100644
index 000000000..d507bcd8f
--- /dev/null
+++ b/tests/ui/feature-gates/issue-43106-gating-of-unstable.rs
@@ -0,0 +1,35 @@
+// Testing gating of `#[unstable]` in "weird" places.
+//
+// This file sits on its own because these signal errors, making
+// this test incompatible with the "warnings only" nature of
+// issue-43106-gating-of-builtin-attrs.rs
+
+#![unstable()]
+//~^ ERROR stability attributes may not be used outside of the standard library
+
+#[unstable()]
+//~^ ERROR stability attributes may not be used outside of the standard library
+mod unstable {
+    mod inner {
+        #![unstable()]
+        //~^ ERROR stability attributes may not be used outside of the standard library
+    }
+
+    #[unstable()]
+    //~^ ERROR stability attributes may not be used outside of the standard library
+    fn f() {}
+
+    #[unstable()]
+    //~^ ERROR stability attributes may not be used outside of the standard library
+    struct S;
+
+    #[unstable()]
+    //~^ ERROR stability attributes may not be used outside of the standard library
+    type T = S;
+
+    #[unstable()]
+    //~^ ERROR stability attributes may not be used outside of the standard library
+    impl S {}
+}
+
+fn main() {}