error: unused extern crate --> $DIR/extern-crate-idiomatic-in-2018.rs:12:1 | LL | extern crate edition_lint_paths; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove it | note: the lint level is defined here --> $DIR/extern-crate-idiomatic-in-2018.rs:9:9 | LL | #![deny(rust_2018_idioms)] | ^^^^^^^^^^^^^^^^ = note: `#[deny(unused_extern_crates)]` implied by `#[deny(rust_2018_idioms)]` error: aborting due to 1 previous error