Computing Guix derivation for 'x86_64-linux'...  
substitute: 
substitute: updating substitutes from 'https://ci.guix.gnu.org'...   0.0%
substitute: updating substitutes from 'https://ci.guix.gnu.org'...  50.0%
substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
substitute: 
substitute: updating substitutes from 'https://bordeaux.guix.gnu.org'...   0.0%
substitute: updating substitutes from 'https://bordeaux.guix.gnu.org'...  50.0%
substitute: updating substitutes from 'https://bordeaux.guix.gnu.org'... 100.0%
The following derivations will be built:
   /gnu/store/div22b1k2sq2kvddz4cvz5lwcvizkvfk-profile.drv
   /gnu/store/17s4dfa2g90ggdbaznqz05d15n6d4fym-inferior-script.scm.drv
   /gnu/store/9ap9lb23n6k8phszbx3f82adjizf21b8-profile.drv
   /gnu/store/x68cd16hlaamqjcxmw3agk63nlpl28f2-guix-hpc.drv
The following profile hooks will be built:
   /gnu/store/9ckd7lsdhfnw1p11zyc2jc3sd118abn5-guix-package-cache.drv
   /gnu/store/v199l2rqawblslxwgsyrxm2iqmicd11y-ca-certificate-bundle.drv
   /gnu/store/wrv82d8lqz7m2lxrck3hsigsqvskjsvg-emacs-subdirs.drv
   /gnu/store/zksakxk401js5yldj64qvrrmy02xinym-fonts-dir.drv
   /gnu/store/zwyz9jx8vbk7qs8cbljpgg91qik0ii7p-info-dir.drv
building path(s) `/gnu/store/wn6vlpzggmvsy2xdwscl6g856ncmkpvw-guix-hpc'
(repl-version 0 1 1)
utils/python-science.scm:177:5: warning: possibly unbound variable `python-pytorch'
(values (value "/gnu/store/wn6vlpzggmvsy2xdwscl6g856ncmkpvw-guix-hpc/share/guile/site/3.0"))
building path(s) `/gnu/store/3bmdcrak2adywv8dhaj5x3zjjh2ql46g-ca-certificate-bundle'
building path(s) `/gnu/store/kry7zmn4c3hq24x2n78by9d2p41nyfs4-emacs-subdirs'
building path(s) `/gnu/store/s2fsgniawh761287zgl7r6ms5nijr4v1-fonts-dir'
building path(s) `/gnu/store/fl6sj5c0fwd4q5m2gnww9qsxi0pmx6ar-info-dir'
building path(s) `/gnu/store/9nbkxq6ysbd7d3zfvargdv1gd4jc2y8p-profile'
building path(s) `/gnu/store/0rysy34r9h3h64nydm7x3b6lwcw9vv35-inferior-script.scm'
building path(s) `/gnu/store/w4hx9gwwdw3vi4dvb01zfp71brd4bjr8-guix-package-cache'
(repl-version 0 1 1)
Generating package cache for '/gnu/store/9nbkxq6ysbd7d3zfvargdv1gd4jc2y8p-profile'...
(exception unbound-variable (value #f) (value "Unbound variable: ~S") (value (python-pytorch)) (value #f))
builder for `/gnu/store/9ckd7lsdhfnw1p11zyc2jc3sd118abn5-guix-package-cache.drv' failed to produce output path `/gnu/store/w4hx9gwwdw3vi4dvb01zfp71brd4bjr8-guix-package-cache'
cannot build derivation `/gnu/store/div22b1k2sq2kvddz4cvz5lwcvizkvfk-profile.drv': 1 dependencies couldn't be built
Backtrace:
In ice-9/boot-9.scm:
  1752:10 12 (with-exception-handler _ _ #:unwind? _ # _)
In unknown file:
          11 (apply-smob/0 #<thunk 7feb85e02340>)
In ice-9/boot-9.scm:
    724:2 10 (call-with-prompt _ _ #<procedure default-prompt-handle?>)
In ice-9/eval.scm:
    619:8  9 (_ #(#(#<directory (guile-user) 7feb85e05c80>)))
In cuirass/ui.scm:
   104:10  8 (run-cuirass-command _ . _)
In cuirass/scripts/evaluate.scm:
   107:27  7 (cuirass-evaluate _)
In ice-9/boot-9.scm:
  1752:10  6 (with-exception-handler _ _ #:unwind? _ # _)
In guix/store.scm:
   658:37  5 (thunk)
  2123:25  4 (run-with-store #<store-connection 256.99 7feb84cf8dc0> ?)
In cuirass/scripts/evaluate.scm:
     89:8  3 (_ _)
In guix/store.scm:
  1995:38  2 (_ #<store-connection 256.99 7feb5c034230>)
  1421:15  1 (_ #<store-connection 256.99 7feb5c034230> _ _)
In ice-9/boot-9.scm:
  1685:16  0 (raise-exception _ #:continuable? _)

ice-9/boot-9.scm:1685:16: In procedure raise-exception:
ERROR:
  1. &store-protocol-error:
      message: "build of `/gnu/store/div22b1k2sq2kvddz4cvz5lwcvizkvfk-profile.drv' failed"
      status: 1