Version 1.9.3-3 of coinst is marked for autoremoval from testing on Thu 30 Jun 2022. It depends (transitively) on nvidia-graphics-drivers-tesla-470, affected by #1011146. You should try to prevent the removal by fixing these RC bugs.
Problems while searching for a new upstream version
high
uscan had problems while searching for a new upstream version:
In debian/watch no matching files for watch line
https://github.com/vouillon/coinst/releases .*/archive/v?([0-9.]+)\.tar\.gz
Depends on packages which need a new maintainer
normal
The packages that coinst depends on which need a new maintainer are: