1 warning: unused extern crate
2 --> $DIR/edition-extern-crate-allowed.rs:7:1
4 LL | extern crate edition_extern_crate_allowed;
5 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove it
7 note: the lint level is defined here
8 --> $DIR/edition-extern-crate-allowed.rs:5:9
10 LL | #![warn(rust_2018_idioms)]
12 = note: `#[warn(unused_extern_crates)]` implied by `#[warn(rust_2018_idioms)]`
14 warning: 1 warning emitted