warning: unused extern crate | |
--> $DIR/remove-extern-crate.rs:9:1 | |
| | |
LL | extern crate core; | |
| ^^^^^^^^^^^^^^^^^^ help: remove it | |
| | |
note: lint level defined here | |
--> $DIR/remove-extern-crate.rs:7:9 | |
| | |
LL | #![warn(rust_2018_idioms)] | |
| ^^^^^^^^^^^^^^^^ | |
= note: `#[warn(unused_extern_crates)]` implied by `#[warn(rust_2018_idioms)]` | |
warning: `extern crate` is not idiomatic in the new edition | |
--> $DIR/remove-extern-crate.rs:32:5 | |
| | |
LL | extern crate core; | |
| ^^^^^^^^^^^^^^^^^^ help: convert it to a `use` | |