warning: unknown lint: `test_unstable_lint` | |
--> $DIR/feature-gate-test_unstable_lint.rs:4:1 | |
| | |
LL | #![allow(test_unstable_lint)] | |
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
| | |
= note: the `test_unstable_lint` lint is unstable | |
= help: add `#![feature(test_unstable_lint)]` 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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date | |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: `#[warn(unknown_lints)]` on by default | |
warning: 1 warning emitted | |