Dear Maintainer, The build of the passwd package for Trixie is missing the groupmems binary. The absence of this binary removes a standard method of retrieving group membership.
Control: tags -1 = wontfix groupmems was rmeoved from the Debian build because Debian was in the minority share of distros still shipping it. If you just want to query group membership, id(1) is a better interface (or directly use the query APIs from your favorite programming language). Chris