Version 3.0.0-2 of rabbit is marked for autoremoval from testing on Sun 13 Oct 2019. It depends (transitively) on blockdiag, affected by #936219. You should try to prevent the removal by fixing these RC bugs.
Last update: 2019-09-22
Depends on packages which need a new maintainer
The packages that rabbit depends on which need a new maintainer are:
This package is part of the ongoing testing transition known as auto-ruby-gnome2-rm.
Please avoid uploads unrelated to this transition, they would
likely delay it and require supplementary work from the release
managers. On the other hand, if your package has problems
preventing it to migrate to testing, please fix them
as soon as possible.
You can probably find supplementary information in the
archives or in the corresponding