MarsSeed [1] filed a deletion request for radiod [2]: EOL since 2010. And PKGBUILD hasn't been compatible with makepkg since at least 2017:
==> ERROR: Missing package() function in PKGBUILD ==> ERROR: url should not be an array [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/radiod/
