warning: file opened with `create`, but `truncate` behavior not defined --> profiler/src/main.rs:163:47 | 163 | let file = OpenOptions::new().write(true).create(true).open(path)?; | ^^^^^^^^^^^^- help: add: `.truncate(true)` | = help: if you intend to overwrite an existing file entirely, call `.truncate(true)` = help: if you instead know that you may want to keep some parts of the old file, call `.truncate(false)` = help: alternatively, use `.append(true)` to append to the file instead of overwriting it = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_open_options = note: `#[warn(clippy::suspicious_open_options)]` on by default