krakn [1] filed a deletion request for gstreamer0.10-fluendo [2]:
Package no longer works.
Upstream is abandoned.
[1] https://aur.archlinux.org/account/krakn/ [2] https://aur.archlinux.org/pkgbase/gstreamer0.10-fluendo/
Request #8612 has been rejected by Alad [1]:
Package still builds. Other gstreamer0.10 variants are also available in AUR.
aur-requests@lists.archlinux.org