nixi [1] filed a orphan request for slic3r-bin [2]:

I have tried to contact DaZ via his email from his AUR profile, but that address is unreachable. 'slic3r-bin', his only package, has been broken for quite a long time now. I am not sure whether he is still interested in managing it. There are surely people who would take over the package and would fix it / update it, including myself.

[1] https://aur.archlinux.org/account/nixi/ [2] https://aur.archlinux.org/pkgbase/slic3r-bin/