| error: unused extern crate | |
| --> $DIR/extern-crate-used.rs:18:1 | |
| | | |
| LL | extern crate core; | |
| | ^^^^^^^^^^^^^^^^^^ help: remove it | |
| | | |
| note: the lint level is defined here | |
| --> $DIR/extern-crate-used.rs:6:9 | |
| | | |
| LL | #![deny(unused_extern_crates)] | |
| | ^^^^^^^^^^^^^^^^^^^^ | |
| error: aborting due to 1 previous error | |