MarsSeed [1] filed a deletion request for ros-noetic-graph-msgs [2]: Broken, unused resource package from 2020. Fails to build. This is upstream's last ROS1 release, from 2014.
[1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/ros-noetic-graph-msgs/
