I believe the current stable version of Debian packages 1.85 rustc. So if the next release of ripgrep uses a higher MSRV, then I think Debian won't be able to package it. It also turned out that I wasn't using anything from beyond Rust 1.85 anyway. It's likely that I could make use of let-chains in various places, but I don't think it's worth combing through the code to switch to them at this point.