aaronfischer [1] filed a deletion request for immutant [2]:
This package is no longer needed because version 2.x is just a Clojure lib without the application server. Version 1.x is not used any more for years.
[1] https://aur.archlinux.org/account/aaronfischer/ [2] https://aur.archlinux.org/pkgbase/immutant/