Hmm... I have discovered that that works when I don't use the multi-job/multi-core options, e.g., as previously reported, this fails ...
g1@g1 ~/src/guix$ guix package -M 4 -c 4 -m ../g1.scm But this ... g1@g1 ~/src/guix$ guix package -m ../g1.scm works. So maybe it's a git bug as opposed to a guix bug.
