FabioLolix [1] filed a deletion request for ruby-httpclient-2.6 [2]: Specific version only needed by pkgbuild 'rhc' which have been archived on github for years now
[1] https://aur.archlinux.org/account/FabioLolix/ [2] https://aur.archlinux.org/pkgbase/ruby-httpclient-2.6/
