* Adding user 'mailman' to your system ... * - Userid: 280 * - Shell: /bin/bash * - Home: /usr/local/mailman * - Groups: mailman * - Extra: -G cron -c mailman useradd: invalid numeric argument 'cron' !!! ERROR: net-mail/mailman-2.1.9_rc1 failed. I did not have a cron installed Reproducible: Always Steps to Reproduce: 1. emerge mailman 2. 3.
Reproducible of course only, if cron not installed
Confirmed here (I just ran into it myself on a new system).
(QA) Fixed.