As a comment, this is unlikely to be a bug in rtkit itself but in some other package's maintainer's script and/or adduser or shadow. See bug 432964 and bug 523896 for comparison.
** Changed in: rtkit (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/573590 Title: package rtkit 0.6-0ubuntu1 failed to install/upgrade: To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rtkit/+bug/573590/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs