int [1] filed a orphan request for perl-sereal-decoder [2]:

The packages (perl-sereal, -encoder and -decoder) were flagged out-of- date a while ago. I tried to contact the package maintainer about two month ago and a week ago again. No reaction. So I think I take the packages.

[1] https://aur.archlinux.org/account/int/ [2] https://aur.archlinux.org/pkgbase/perl-sereal-decoder/