| error[E0658]: the `#[profiler_runtime]` attribute is used to identify the `profiler_builtins` crate which contains the profiler runtime and will never be stable |
| --> $DIR/feature-gate-profiler-runtime.rs:1:1 |
| | |
| LL | #![profiler_runtime] |
| | ^^^^^^^^^^^^^^^^^^^^ |
| | |
| = help: add `#![feature(profiler_runtime)]` 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| = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date |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`. |
