MarsSeed [1] filed a deletion request for pacemaker1.1 [2]: Boken, abandoned pkg from 2020. Fails checksum verification. But also cannot be built due to incompatibility with dependency libesmtp.
I don't think it's useful to keep this EOL version from 2020. AUR has a working package for the current release (AUR/pacemaker). [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/pacemaker1.1/
