error[E0734]: stability attributes may not be used outside of the standard library --> $DIR/issue-106589.rs:3:1 | LL | #![stable(feature = "foo", since = "1.0.0")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0734]: stability attributes may not be used outside of the standard library --> $DIR/issue-106589.rs:6:1 | LL | #[unstable(feature = "foo", issue = "none")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0734`.