Am Samstag, 15. Dezember 2012 schrieb Ludovic Courtès:
> Oh right.  Actually, can you instead try this:
>   guix-build --verbosity=4 hello
> (Yes, this is a brand new option.  :-))
> On my machine ‘guix-build’ emits messages like:
>   |   |   |   found build user `nixbld1'
>   |   |   |   found build user `nixbld2'
>   |   |   |   found build user `nixbld3'
>   |   |   |   found build user `nixbld4'
>   |   |   |   found build user `nixbld5'
>   |   |   |   found build user `nixbld6'
>   |   |   |   found build user `nixbld7'
>   |   |   |   found build user `nixbld8'
>   |   |   |   found build user `nixbld9'
>   |   |   |   found build user `nixbld10'
>   |   |   |   trying user `nixbld1'

Yes, I see the same messages, then

|   |   |   trying user `nixbld1'
|   |   |   killing all processes running under uid `30001'
|   |   |   setting up chroot environment in 
`/nix/store/6q7s15hqyqxkxnxxx1d7jj2rm6q28ib9-module-import.drv.chroot'
|   |   |   executing builder `/nix/store/7ys18z66aih9dwzlwkj2jynk05a3xsds-
guile-bootstrap-2.0/bin/guile'
|   |   |   @ build-started /nix/store/6q7s15hqyqxkxnxxx1d7jj2rm6q28ib9-
module-import.drv /nix/store/fdzwc7ss7zbpg60n5h2kpp98l8sbjx9f-module-import 
x86_64-linux /usr/local/guix-
git/var/log/nix/drvs/6q7s15hqyqxkxnxxx1d7jj2rm6q28ib9-module-import.drv.bz2
|   |   building of `/nix/store/g1acby4isvypwrs141yl8wi9sr58wcr3-
gc-7.2alpha6.tar.gz.drv': all outputs substituted (maybe)
|   |   building of `/nix/store/2d4zra8i0j93qfvvbcxsd59fhphkgzfq-guile-
bootstrap-2.0.drv': created
|   |   building of `/nix/store/2d4zra8i0j93qfvvbcxsd59fhphkgzfq-guile-
bootstrap-2.0.drv': woken up
|   |   substitution of `/nix/store/davrb8rkw5q74y9j8b99jmq3ypm59pbc-
gc-7.2alpha6.tar.gz-guile-builder': created
|   |   substitution of `/nix/store/davrb8rkw5q74y9j8b99jmq3ypm59pbc-
gc-7.2alpha6.tar.gz-guile-builder': woken up
|   |   building of `/nix/store/2x28xlwzi66p0ydk6iwy008py9g7fg98-
perl-5.16.1.tar.gz.drv': all outputs substituted (maybe)
|   |   substitution of `/nix/store/aja3695yjwwm1zlwfqpfn4qi77s5mql1-
perl-5.16.1.tar.gz-guile-builder': created
|   |   substitution of `/nix/store/aja3695yjwwm1zlwfqpfn4qi77s5mql1-
perl-5.16.1.tar.gz-guile-builder': woken up
|   |   building of `/nix/store/imzn9c8knqvy65vxvm7b4w010xvx3qpi-module-
import.drv': trying to build
|   |   locking path `/nix/store/2psl4274zb67avwqhwa7d5afwjf8nk86-module-
import'
|   |   lock acquired on `/nix/store/2psl4274zb67avwqhwa7d5afwjf8nk86-
module-import.lock'
|   |   building path(s) `/nix/store/2psl4274zb67avwqhwa7d5afwjf8nk86-
module-import'
|   |   |   found build user `nixbld1'
|   |   |   found build user `nixbld2'
|   |   |   found build user `nixbld3'
|   |   |   found build user `nixbld4'
|   |   |   found build user `nixbld5'
|   |   |   found build user `nixbld6'
|   |   |   found build user `nixbld7'
|   |   |   found build user `nixbld8'
|   |   |   found build user `nixbld9'
|   |   |   found build user `nixbld10'
|   |   |   trying user `nixbld1'
|   |   |   trying user `nixbld2'
|   |   |   trying user `nixbld3'
|   |   |   trying user `nixbld4'
|   |   |   trying user `nixbld5'
|   |   |   trying user `nixbld6'
|   |   |   trying user `nixbld7'
|   |   |   trying user `nixbld8'
|   |   |   trying user `nixbld9'
|   |   |   trying user `nixbld10'
|   building of `/nix/store/rqllv82x33mfqvma7zbj2kjdkxdqdwpx-
hello-2.8.drv': goal destroyed

(lots of goal destroyed)

|   building of `/nix/store/hn55pz6ws2c26w8jbgmgzywmj9k6aghw-module-import-
compiled.drv': goal destroyed
|   killing all processes running under uid `30001'
|   recursively deleting path `/tmp/nix-build-module-import.drv-0'
|   recursively deleting path `/nix/store/6q7s15hqyqxkxnxxx1d7jj2rm6q28ib9-
module-import.drv.chroot'
|   lock released on `/nix/store/fdzwc7ss7zbpg60n5h2kpp98l8sbjx9f-module-
import.lock'
|   building of `/nix/store/6q7s15hqyqxkxnxxx1d7jj2rm6q28ib9-module-
import.drv': goal destroyed
error: build failed: all build users are currently in use; consider 
creating additional users and adding them to the `nixbld' group

The full output is attached.

Andreas