Given what i know about the problem: substitute operations are failing
because gnutls is not available, I tried:
jackhill@kalessin ~$ guix build --substitute-urls=http://ci.guix.gnu.org
/gnu/store/zkhymfsbrv0s4y7l778g78k6y65nidxd-gnutls-3.6.16.drv
/gnu/store/2vjql2vd6srqxhr0r9xnhclqgc5kxlh1-gnutls-3.6.16-debug
/gnu/store/ads39f4czri8s1k43qd0qpxi6dr3w0zn-gnutls-3.6.16-doc
/gnu/store/jlk67v3nddhv0z963wfvahk8fc8gqcz8-gnutls-3.6.16
jackhill@kalessin ~$ ls -l
/gnu/store/jlk67v3nddhv0z963wfvahk8fc8gqcz8-gnutls-3.6.16
ls: cannot access '/gnu/store/jlk67v3nddhv0z963wfvahk8fc8gqcz8-gnutls-3.6.16':
No such file or directory
So Guix think's it's sucessfully built gnutls, but it's still not present
in the store. I've also tried copying the store items from other hosts. No
luck so far…
