MarsSeed [1] filed a deletion request for ruby-gtk2 [2]: EOL since 2020, broken. Not compatible with the current major version (v4.x) of its Ruby GNOME binding dependencies (e.g. ruby-atk).
[1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/ruby-gtk2/
