I've had many 404s for substitutes, both from mirror.hydra.gnu.org and hydra itself. This means that I can't, for instance, install the Guix version of Emacs, because with --fallback it runs out of the ~1GB I have in TMPDIR while trying to run cmake tests. [I'm surprised that installing Emacs pulls in on things like subversion and cmake.]
I've tried over a couple of days. Is there a workaround that? (I looked for a way to turn off the build checks, at least.)
