1 error: useless lint attribute
2 --> $DIR/useless_attribute.rs:5:1
4 5 | #[allow(dead_code, unused_extern_crates)]
5 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if you just forgot a `!`, use: `#![allow(dead_code, unused_extern_crates)]`
7 = note: `-D useless-attribute` implied by `-D warnings`
9 error: aborting due to previous error