MarsSeed [1] filed a deletion request for qtcreator-opt-git [2]: Unmaintained, broken non-VCS package from 2018.
There's a qtcreator-git on AUR, which seems to be in much better shape, though that is also an orphan now, and needs at least some amount of enhancement. Meanwhile it is safe to delete this one. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/qtcreator-opt-git/
