Apply clippy lint fixes

[BenjaminBrienen]

Simply run cargo clippy --fix.

[BenjaminBrienen]

Sorry if this seemed like spam. Is this against some process you have? @ytmimi

[ytmimi]

We don't have a policy against clippy PRs, but they're extremely low priority. From the commit messages it looks like you just blindly ran cargo clippy --fix and submitted the PR. I took a brief look at the diff and it seemed like a lot of changes were in test code which isn't that impactful and I'd rather avoid the churn if there isn't much of a benefit outside of "clippy said this was better".

[ytmimi]

That said, if there's an argument to be made for select changes that provide some measurable benefit then we'd be willing to accept those.