Alad [1] filed a deletion request for openrc-core [2]: Maintainer dropped AUR support:
https://forum.manjaro.org/index.php?topic=27333.0 "Due to now clashing name with 3rd party openrc packages on AUR, I will discontinue AUR support, so the manjaro builds will become manjaro exclusive in regard to availability." Also duplicates openrc package. [1] https://aur.archlinux.org/account/Alad/ [2] https://aur.archlinux.org/pkgbase/openrc-core/
