I would hope that clbuild pulls the source from weitz.de so that it will eventually be up to date. Maybe there's a delay of some hours?
clbuild:747:get_ediware() { clbuild:748: get_darcs $1 http://common-lisp.net/~loliveira/ediware/$1
clbuild never gets tarballs, its basic philosophy is to work with repositories.