```
error: unnecessary use of `.write(true)` because there is `.append(true)`
--> logger/src/lib.rs:61:9
|
61 | .write(true)
| ^^^^^^^^^^^^ help: remove `.write(true)`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ineffective_open_options
= note: `-D clippy::ineffective-open-options` implied by `-D warnings`
= help: to override `-D warnings` add `#[allow(clippy::ineffective_open_options)]`
```