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/9aj83xzf3bzq5khidrqbx1asvqmlx7r1-profile.drv
   /gnu/store/fxqvm8s4h18mn3mwczr3z6rvypaxnxy7-guix-hpc.drv
   /gnu/store/0sjalk0slr5l56wfd2x38qx89yjwsz09-inferior-script.scm.drv
   /gnu/store/s3sia9w0wfkj9m20kqawndrhiw7wgqp1-profile.drv
The following profile hooks will be built:
   /gnu/store/3njwlrrnzncayynyd1jzc3nv0bg9cywn-emacs-subdirs.drv
   /gnu/store/7bsq17phfjynlva0mifmva8kkd58b7bb-info-dir.drv
   /gnu/store/czj3ww1x6b2xyx5c7ksr5ksrsq13x8l2-ca-certificate-bundle.drv
   /gnu/store/dmaz2dv863yrwymcspr3gbgrmcf383a5-guix-package-cache.drv
   /gnu/store/p6dhgl65p6rv65dakkri1yp72rf5dypx-fonts-dir.drv
building path(s) `/gnu/store/7r9i16p33q0743x9dsa375zf352cwpww-guix-hpc'
(repl-version 0 1 1)
ufrgs/ufrgs.scm:70:4: warning: possibly unbound variable `r-data-tree'
utils/python-science.scm:177:5: warning: possibly unbound variable `python-pytorch'
utils/python-science.scm:203:5: warning: possibly unbound variable `python-pytorch'
(values (value "/gnu/store/7r9i16p33q0743x9dsa375zf352cwpww-guix-hpc/share/guile/site/3.0"))
building path(s) `/gnu/store/fip4dfw9ivg2qmfxjk2nshdwkz0882b1-ca-certificate-bundle'
building path(s) `/gnu/store/q8cylfz8sbb01scxb29vwfrj64n9kn45-emacs-subdirs'
building path(s) `/gnu/store/ab5mdc5bdvr4zv19n2qp20hnmr1mn2lc-fonts-dir'
building path(s) `/gnu/store/hz4rmfn4pz4qwlrld3c6myiq2byn5hyh-info-dir'
building path(s) `/gnu/store/qgmryr1kl0fh3vmx6jzgsi7h3xpnv8xy-profile'
building path(s) `/gnu/store/1b2s11jniq6lg6fajmp5jwc4ijrml6f9-inferior-script.scm'
building path(s) `/gnu/store/j19cld7y9iwqkwqjmhj3iphh2jh31024-guix-package-cache'
(repl-version 0 1 1)
Generating package cache for '/gnu/store/qgmryr1kl0fh3vmx6jzgsi7h3xpnv8xy-profile'...
(exception unbound-variable (value #f) (value "Unbound variable: ~S") (value (python-pytorch)) (value #f))
builder for `/gnu/store/dmaz2dv863yrwymcspr3gbgrmcf383a5-guix-package-cache.drv' failed to produce output path `/gnu/store/j19cld7y9iwqkwqjmhj3iphh2jh31024-guix-package-cache'
cannot build derivation `/gnu/store/9aj83xzf3bzq5khidrqbx1asvqmlx7r1-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 7faa966d9340>)
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) 7faa966dcc80>)))
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 7faa955cfdc0> ?)
In cuirass/scripts/evaluate.scm:
     89:8  3 (_ _)
In guix/store.scm:
  1995:38  2 (_ #<store-connection 256.99 7faa6c81f410>)
  1421:15  1 (_ #<store-connection 256.99 7faa6c81f410> _ _)
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/9aj83xzf3bzq5khidrqbx1asvqmlx7r1-profile.drv' failed"
      status: 1