Eschwartz [1] filed a deletion request for fetchmirrors [2]:
Almost half a year after my request in the comments, this still pulls
from git master.
It also provides a verbatim copy of the rankmirrors script from
[community]/pacman-contrib, except with autotools macros still
embedded which get printed in the usage text. :/
In general I don't see any reason for this to exist, especially as
[community]/reflector exists.
[1] https://aur.archlinux.org/account/Eschwartz/
[2] https://aur.archlinux.org/pkgbase/fetchmirrors/