error[E0658]: the `#[fundamental]` attribute is an experimental feature (see issue #29635) | |
--> $DIR/feature-gate-fundamental.rs:11:1 | |
| | |
11 | #[fundamental] //~ ERROR the `#[fundamental]` attribute is an experimental feature | |
| ^^^^^^^^^^^^^^ | |
| | |
= help: add #![feature(fundamental)] to the crate attributes to enable | |
error: aborting due to previous error | |