error[E0658]: the `#[register_attr]` attribute is an experimental feature | |
--> $DIR/feature-gate-register_attr.rs:1:1 | |
| | |
LL | #![register_attr(attr)] | |
| ^^^^^^^^^^^^^^^^^^^^^^^ | |
| | |
= note: see issue #66080 <https://github.com/rust-lang/rust/issues/66080> for more information | |
= 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`. |