| error[E0658]: the `#[register_attr]` attribute is an experimental feature | |
| --> $DIR/feature-gate-register_attr.rs:1:1 | |
| | | |
| LL | #![register_attr(attr)] | |
| | ^^^^^^^^^^^^^^^^^^^^^^^ | |
| | | |
| = note: for more information, see https://github.com/rust-lang/rust/issues/66080 | |
| = help: add `#![feature(register_attr)]` to the crate attributes to enable | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0658`. |