error[E0658]: the `#[const_eval_limit]` attribute is an experimental feature --> $DIR/feature-gate-const_eval_limit.rs:1:1 | LL | #![const_eval_limit="42"] | ^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: see issue #67217 for more information = help: add `#![feature(const_eval_limit)]` to the crate attributes to enable error: aborting due to previous error For more information about this error, try `rustc --explain E0658`.