I think it'd be nice to have an option to store build logs either inside binpkgs, or otherwise have an easy option to retrieve the build log from a binrepo, such that they're always available. The purpose would be to figure out any quirks about the building environment that aren't recorded in the metadata directly: What compiler version did it use and what warnings were raised during build, what did the configure script decide to do based on what packages were installed, etc etc. It gives a bit more transparency over what happened at the server. It's not machine readable like for example .buildinfo files[1], but it's also easy to forget details in such a formal specification. Even if something like that were to be introduced I feel like build logs would still be useful. [1]: https://wiki.debian.org/ReproducibleBuilds/BuildinfoFiles
