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 | |
error: aborting due to previous error | |
For more information about this error, try `rustc --explain E0658`. |