1 error[E0734]: stability attributes may not be used outside of the standard library
2 --> $DIR/feature-gate-rustc_const_unstable.rs:3:1
4 LL | #[rustc_const_unstable(feature="fzzzzzt")]
5 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
7 error: aborting due to previous error
9 For more information about this error, try `rustc --explain E0734`.