error: use of an unstable feature --> $DIR/feature-gate-feature-gate.rs:2:12 | LL | #![feature(intrinsics)] | ^^^^^^^^^^ | note: the lint level is defined here --> $DIR/feature-gate-feature-gate.rs:1:11 | LL | #![forbid(unstable_features)] | ^^^^^^^^^^^^^^^^^ error: aborting due to 1 previous error