| error[E0658]: use of unstable library feature 'core_intrinsics': intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library |
| --> $DIR/expand-to-unstable.rs:8:10 |
| | |
| LL | #[derive(Unstable)] |
| | ^^^^^^^^ |
| | |
| = help: add `#![feature(core_intrinsics)]` to the crate attributes to enable |
| = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date |
| = note: this error originates in the derive macro `Unstable` (in Nightly builds, run with -Z macro-backtrace for more info) |
| |
| error: aborting due to 1 previous error |
| |
| For more information about this error, try `rustc --explain E0658`. |
