error: unused import: `std::fs` --> $DIR/unused-import-issue-87973.rs:8:5 | LL | use std::fs; | ^^^^^^^ | note: the lint level is defined here --> $DIR/unused-import-issue-87973.rs:2:9 | LL | #![deny(unused_imports)] | ^^^^^^^^^^^^^^ error: aborting due to 1 previous error