MarsSeed [1] filed a deletion request for guile-json1 [2]: Obsolete legacy version 1.x from 2018 of guile-json (which is currently at v4.x).
No longer required by any builds on AUR. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/guile-json1/
