| error[E0658]: the `#[no_core]` attribute is an experimental feature | |
| --> $DIR/feature-gate-no_core.rs:3:1 | |
| | | |
| LL | #![no_core] | |
| | ^^^^^^^^^^^ | |
| | | |
| = note: see issue #29639 <https://github.com/rust-lang/rust/issues/29639> for more information | |
| = help: add `#![feature(no_core)]` 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| = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date | |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`. |