error[E0433]: failed to resolve: maybe a missing crate `core`? --> $DIR/portable-intrinsics-arent-exposed.rs:4:5 | LL | use core::simd::intrinsics; | ^^^^ maybe a missing crate `core`? | = help: consider adding `extern crate core` to use the `core` crate error[E0432]: unresolved import `std::simd::intrinsics` --> $DIR/portable-intrinsics-arent-exposed.rs:5:5 | LL | use std::simd::intrinsics; | ^^^^^^^^^^^^^^^^^^^^^ no `intrinsics` in `simd` error: aborting due to 2 previous errors Some errors have detailed explanations: E0432, E0433. For more information about an error, try `rustc --explain E0432`.