Is rebuilding really the biggest problem? Even if Debian had enough capacity to rebuild everything after the change of a build dependency, I do not see how this solves the work of tracking Rust dependencies in the first place.
I use a handful of Rust applications which I am building myself on Debian. Each of them has hundreds of tiny dependencies which are changing on a daily (if not hourly) basis. Some of them I can only build in Sid, or I have to checkout really old commits from Git. I do not see how this is supposed to be working in a Debian stable release with all the required manual work such as backporting security fixes etc. Regards Stephan
signature.asc
Description: This is a digitally signed message part