Clippy fixes

This cleans up some clippy lints. In particular, I'm curious about the use of the unsafe blocks. Is there a reasons for adding them I'm not aware of?

requested review from @onyinyang

assigned to @cohosh

I don't think the unsafe blocks actually need to be there. I think this might have just been an issue with rust-analyzer in vscode making me think they were needed. Thanks for the other fixes too!

approved this merge request

merged