Comment # 1 on bug 1175288 from Dominique Leuenberger

All of ruby 2.7 has been eliminated in Factory

and rubygem-tins was dropped:

r37 | dimstar_suse | 2020-09-29 17:00:34 | b525d0647f02d50e899d23a285c2b74d |
1.24.1 | rq829692

Nobody wants to actively maintain it, package uninstallable - boo#1175288