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/lwqagbbgp90d59144ig98p9hvj3j4r28-profile.drv
   /gnu/store/q66ds58p0zwjqwczr55yc2ar5ah1dxpi-guix-hpc.drv
   /gnu/store/ba05ls13506jnqabq5ylqvc4ln9k60n5-inferior-script.scm.drv
   /gnu/store/gvy09jvnwdnh9b0pgnj8myrxz3jg2ik2-profile.drv
The following profile hooks will be built:
   /gnu/store/7bi22ga968ml74rxs6rwj57cvbcqvbkh-info-dir.drv
   /gnu/store/cfxvc2q8f7488xlks7hffqhb2rqiadlw-fonts-dir.drv
   /gnu/store/dg2gvc76hf3v2nifiq80mmgbdwx8x26m-guix-package-cache.drv
   /gnu/store/gmklvgvnzmdm050fijj0rr90xby63j1q-ca-certificate-bundle.drv
   /gnu/store/k7jgxxh1d5kzcr84s1r21nm4p0xmcarz-emacs-subdirs.drv
building path(s) `/gnu/store/s4qlrjgrmh97gc3v0qdfbd81pahalmrz-guix-hpc'
(repl-version 0 1 1)
utils/python-science.scm:177:5: warning: possibly unbound variable `python-pytorch'
(values (value "/gnu/store/s4qlrjgrmh97gc3v0qdfbd81pahalmrz-guix-hpc/share/guile/site/3.0"))
building path(s) `/gnu/store/c7qc5xvl2d5cvpgpfp9ryv0ramvfh5y6-ca-certificate-bundle'
building path(s) `/gnu/store/3gclxc102i06vfdph395hrxxi34s3bgh-emacs-subdirs'
building path(s) `/gnu/store/pgaija5msk6x1zcxk1zm6wdqr7yxr1ba-fonts-dir'
building path(s) `/gnu/store/s8p8xrmmgml76jm8wisb2anhfhvyg2vm-info-dir'
building path(s) `/gnu/store/9xnia3kd0r15jf4h5r2jilazfwkkyyxx-profile'
building path(s) `/gnu/store/l4fkjck3na8ck8wp7jygvj56vpxj42cp-inferior-script.scm'
building path(s) `/gnu/store/43py5v8qlvb2rgssffdg8047zmiy9w6n-guix-package-cache'
(repl-version 0 1 1)
Generating package cache for '/gnu/store/9xnia3kd0r15jf4h5r2jilazfwkkyyxx-profile'...
(exception unbound-variable (value #f) (value "Unbound variable: ~S") (value (python-pytorch)) (value #f))
builder for `/gnu/store/dg2gvc76hf3v2nifiq80mmgbdwx8x26m-guix-package-cache.drv' failed to produce output path `/gnu/store/43py5v8qlvb2rgssffdg8047zmiy9w6n-guix-package-cache'
cannot build derivation `/gnu/store/lwqagbbgp90d59144ig98p9hvj3j4r28-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 7fdb2d32c340>)
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) 7fdb2d32fc80>)))
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 7fdb2c234dc0> ?)
In cuirass/scripts/evaluate.scm:
     89:8  3 (_ _)
In guix/store.scm:
  1995:38  2 (_ #<store-connection 256.99 7fdb035dc320>)
  1421:15  1 (_ #<store-connection 256.99 7fdb035dc320> _ _)
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/lwqagbbgp90d59144ig98p9hvj3j4r28-profile.drv' failed"
      status: 1