rust/tests/ui/tool-attributes/diagnostic_item.stderr

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error[E0658]: diagnostic items compiler internal support for linting
--> $DIR/diagnostic_item.rs:1:1
|
LL | #[rustc_diagnostic_item = "foomp"]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= help: add `#![feature(rustc_attrs)]` 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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date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`.