warning: unused variable: `used_length`
   --> <project>/reports/os-implementation/K1520-block-errors-local-U7XO5x/mutant/kernel/tests/os/../../../os-block-requests/src/lib.rs:148:9
    |
148 |         used_length: u32, status: u8) -> Result<Request, Error> {
    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_used_length`
    |
    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default

warning: 1 warning emitted