root@e5432af20b73:/# ruby -v ruby 3.0.2p107 (2021-07-07 revision 0db68f0233) [x86_64-linux-gnu] root@e5432af20b73:/# dpkg -l | grep libyaml ii libyaml-0-2:amd64 0.2.2-1build2 amd64 Fast YAML 1.1 parser and emitter library root@e5432af20b73…