error[E0658]: intrinsics are subject to change --> $DIR/feature-gate-intrinsics.rs:1:8 | LL | extern "rust-intrinsic" { | ^^^^^^^^^^^^^^^^ | = help: add `#![feature(intrinsics)]` to the crate attributes to enable error[E0658]: intrinsics are subject to change --> $DIR/feature-gate-intrinsics.rs:5:8 | LL | extern "rust-intrinsic" fn baz() {} | ^^^^^^^^^^^^^^^^ | = help: add `#![feature(intrinsics)]` to the crate attributes to enable error[E0093]: unrecognized intrinsic function: `bar` --> $DIR/feature-gate-intrinsics.rs:2:5 | LL | fn bar(); | ^^^^^^^^^ unrecognized intrinsic error: intrinsic must be in `extern "rust-intrinsic" { ... }` block --> $DIR/feature-gate-intrinsics.rs:5:34 | LL | extern "rust-intrinsic" fn baz() {} | ^^ error: aborting due to 4 previous errors Some errors have detailed explanations: E0093, E0658. For more information about an error, try `rustc --explain E0093`.