| error[E0658]: the `#[register_tool]` attribute is an experimental feature |
| --> $DIR/feature-gate-register_tool.rs:1:1 |
| | |
| LL | #![register_tool(tool)] |
| | ^^^^^^^^^^^^^^^^^^^^^^^ |
| | |
| = note: see issue #66079 <https://github.com/rust-lang/rust/issues/66079> for more information |
| = help: add `#![feature(register_tool)]` to the crate attributes to enable |
| = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date |
| |
| error: aborting due to 1 previous error |
| |
| For more information about this error, try `rustc --explain E0658`. |
