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: for more information, see https://github.com/rust-lang/rust/issues/67217
   = 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`.