Version 0.35.1-1 of python-certbot-dns-rfc2136 is marked for autoremoval from testing on Sun 06 Oct 2019. It depends (transitively) on python-acme, affected by #935211. You should try to prevent the removal by fixing these RC bugs.
Last update: 2019-09-22
Standards version of the package is outdated.
The package should be updated to follow the last version of Debian Policy
(Standards-Version 4.4.0 instead of