bug#30644: Cuirass runs out of build users

[Andreas Enge]

On Thu, Mar 01, 2018 at 03:01:30PM +0100, Ludovic Courtès wrote:
> > Hm, the directories in /tmp are created by guixbuilder01 to guixbuilder10.
> > 10 is the default value, but it should have been overwritten.
> >
> > And in /etc/passwd, I see 20 users. But apparently, they are not used!
> 
> There’s something fishy here.  What does “getent group guixbuild”
> return?

All 20 build users:
# getent group guixbuild
guixbuild:x:30000:guixbuilder01,guixbuilder02,guixbuilder03,guixbuilder04,guixbuilder05,guixbuilder06,guixbuilder07,guixbuilder08,guixbuilder09,guixbuilder10,guixbuilder11,guixbuilder13,guixbuilder14,guixbuilder15,guixbuilder16,guixbuilder17,guixbuilder18,guixbuilder20

I will deploy the new cuirass with the other bug fixed, and report back if
the problem described here is still present.

Andreas