| warning: unexpected `cfg` condition name: `unknown_key` | |
| --> $DIR/exhaustive-names.rs:7:7 | |
| | | |
| LL | #[cfg(unknown_key = "value")] | |
| | ^^^^^^^^^^^^^^^^^^^^^ | |
| | | |
| = help: to expect this configuration use `--check-cfg=cfg(unknown_key, values("value"))` | |
| = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg.html> for more information about checking conditional configuration | |
| = note: `#[warn(unexpected_cfgs)]` on by default | |
| warning: 1 warning emitted | |