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/px8dhn34671savw62gsjkp7vchzvpqz0-profile.drv
   /gnu/store/jnzbaggci7k7y9v4i435hfzx8n77zfw2-inferior-script.scm.drv
   /gnu/store/x66w4yl33ld19i2ayb1ry46af3zw7xqc-profile.drv
   /gnu/store/mq4x2j32mix97q3rsd35dhrxid8iqlhi-guix-hpc.drv
The following profile hooks will be built:
   /gnu/store/0hdyqmbyriwdp9nqywzcrwrzz66gbgkk-guix-package-cache.drv
   /gnu/store/7frr90zw5635693inqxnw8ppnfwn8gmb-ca-certificate-bundle.drv
   /gnu/store/qxxr009hrh6hyahmwfz03i1f03hl8p1m-emacs-subdirs.drv
   /gnu/store/w1rbq9ybzmc9w37ycy9hyiqj7n79q6wp-info-dir.drv
   /gnu/store/ydm0xazfy6nj99zvm76gyqv5b524s7y7-fonts-dir.drv
building path(s) `/gnu/store/x0ycbmjqb6wllib39n1qvsxdx1mwimlw-guix-hpc'
(repl-version 0 1 1)
utils/python-science.scm:177:5: warning: possibly unbound variable `python-pytorch'
(values (value "/gnu/store/x0ycbmjqb6wllib39n1qvsxdx1mwimlw-guix-hpc/share/guile/site/3.0"))
building path(s) `/gnu/store/xpnms7b09jy16lxmdi88a3wjcqsf7m5l-ca-certificate-bundle'
building path(s) `/gnu/store/jm2lhzypl5a8izxqsk31qpbrvn9i8dpr-emacs-subdirs'
building path(s) `/gnu/store/mamykxsya556qpq7ian9wmpgixf1p597-fonts-dir'
building path(s) `/gnu/store/l76kjlra72b6iix19lhg5gqrva01wzwp-info-dir'
building path(s) `/gnu/store/38r23y0sxaixdr8dzvir5m1s71zddznk-profile'
building path(s) `/gnu/store/810w77vmcfihw7afvg7vd2iqyzaimrz8-inferior-script.scm'
building path(s) `/gnu/store/wz558ayqv9079c6bgprzmbfq98y2acx5-guix-package-cache'
(repl-version 0 1 1)
Generating package cache for '/gnu/store/38r23y0sxaixdr8dzvir5m1s71zddznk-profile'...
(exception unbound-variable (value #f) (value "Unbound variable: ~S") (value (python-pytorch)) (value #f))
builder for `/gnu/store/0hdyqmbyriwdp9nqywzcrwrzz66gbgkk-guix-package-cache.drv' failed to produce output path `/gnu/store/wz558ayqv9079c6bgprzmbfq98y2acx5-guix-package-cache'
cannot build derivation `/gnu/store/px8dhn34671savw62gsjkp7vchzvpqz0-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 7fdc6a8ba340>)
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) 7fdc6a8bdc80>)))
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 7fdc69489dc0> ?)
In cuirass/scripts/evaluate.scm:
     89:8  3 (_ _)
In guix/store.scm:
  1995:38  2 (_ #<store-connection 256.99 7fdc40850000>)
  1421:15  1 (_ #<store-connection 256.99 7fdc40850000> _ _)
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/px8dhn34671savw62gsjkp7vchzvpqz0-profile.drv' failed"
      status: 1