Bugs in this guide can be reported at the GitHub repository for the book.
Bugs in Rust should be reported to Rust itself, ideally with the
[AVR] prefix on the issue title.
After creation, the triage team will tag the issue as O-AVR for you.
Bugs in ecosystem crates should be reported directly on the relevant crate's issue tracker where possible.
If unclear, feel free to message the kind folks in the avr-rust Gitter channel for advice. Don't worry if you can't track it down to the right place 100% - know that it is better to report a bug in the wrong place than to not report it at all!