Computing Guix derivation for 'x86_64-linux'...  
substitute: 
substitute: updating substitutes from 'https://guix.bordeaux.inria.fr'...   0.0%
substitute: updating substitutes from 'https://guix.bordeaux.inria.fr'...  50.0%
substitute: updating substitutes from 'https://guix.bordeaux.inria.fr'... 100.0%
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%
The following derivations will be built:
  /gnu/store/cwrvmrz8pp3s0swrgmggnfw9cfz9bjig-profile.drv
  /gnu/store/3vz4djwpj5sb07lim63czrvyi9pf2pll-guix-past.drv
  /gnu/store/6zh9rp85258jwghx48glcsn0ra1i54cc-inferior-script.scm.drv
  /gnu/store/90qd9ain6nx84pq4jby58px5zhhylkk0-profile.drv
The following profile hooks will be built:
   /gnu/store/5fb0kjb8qddclwq1v3vnb3i968d431hb-ca-certificate-bundle.drv
   /gnu/store/7clvgzl16pkiigb0sn1fdmlhwxcm8f1z-emacs-subdirs.drv
   /gnu/store/qpk84bb4p8ldjj5ak463fc40kis9mni8-info-dir.drv
   /gnu/store/rr30ba57l2cwaaif61bg8bmgnkzq13b2-guix-package-cache.drv
   /gnu/store/vbwq9jc9azc8q0q5gz5syqgphfzjmjds-fonts-dir.drv
building path(s) `/gnu/store/219n7kmrgaa4a7rvj3f1nwi8jdnvcpd6-guix-past'
(repl-version 0 1 1)
WARNING: (past packages bioinformatics): `python2-pillow' imported from both (gnu packages python-xyz) and (past packages python27)
WARNING: (past packages bioinformatics): `python2-numpy' imported from both (gnu packages python-xyz) and (past packages python27)
WARNING: (past packages bioinformatics): `python2-matplotlib' imported from both (gnu packages python-xyz) and (past packages python27)
WARNING: (past packages python): `openssl-1.0' imported from both (gnu packages tls) and (past packages tls)
WARNING: (past packages web): `openssl-1.0' imported from both (past packages tls) and (gnu packages tls)
WARNING: (past packages bioinformatics): `python2-pillow' imported from both (gnu packages python-xyz) and (past packages python27)
WARNING: (past packages bioinformatics): `python2-numpy' imported from both (gnu packages python-xyz) and (past packages python27)
WARNING: (past packages bioinformatics): `python2-matplotlib' imported from both (gnu packages python-xyz) and (past packages python27)
WARNING: (past packages python): `openssl-1.0' imported from both (gnu packages tls) and (past packages tls)
WARNING: (past packages web): `openssl-1.0' imported from both (past packages tls) and (gnu packages tls)
past/packages/statistics.scm:210:5: warning: possibly unbound variable `modify-inputs'
past/packages/statistics.scm:211:7: warning: possibly unbound variable `replace'
past/packages/statistics.scm:211:7: warning: possibly unbound variable `gfortran-7'
past/packages/python.scm:402:12: warning: possibly unbound variable `customize-site'
past/packages/python27.scm:819:34: warning: possibly unbound variable `this-package-input'
(values (value "/gnu/store/219n7kmrgaa4a7rvj3f1nwi8jdnvcpd6-guix-past/share/guile/site/3.0"))
building path(s) `/gnu/store/n6aw45jzkkqaxflx5r7yj00npwwfkxhx-ca-certificate-bundle'
building path(s) `/gnu/store/zcq1a6gh56hjvns4nhn0wwryw1m54say-emacs-subdirs'
building path(s) `/gnu/store/qrjqzq6pa7na66b0cw0g7dvycapy4s14-fonts-dir'
building path(s) `/gnu/store/pbywq1wzqsh2ksfyanhj9fpafzh1rbsp-info-dir'
building path(s) `/gnu/store/0kh99y2n7ib313bqpqjc5hmhn9qjnyqh-profile'
building path(s) `/gnu/store/p1nf905yigca55qni6gk000zan0p4h3i-inferior-script.scm'
building path(s) `/gnu/store/mdjkkkq69pdpfyl3zd4m8z6gmmn718hw-guix-package-cache'
(repl-version 0 1 1)
Generating package cache for '/gnu/store/0kh99y2n7ib313bqpqjc5hmhn9qjnyqh-profile'...
(exception wrong-type-arg (value "scm_to_utf8_stringn") (value "Wrong type argument in position ~A (expecting ~A): ~S") (value (1 "string" #f)) (value (#f)))
builder for `/gnu/store/rr30ba57l2cwaaif61bg8bmgnkzq13b2-guix-package-cache.drv' failed to produce output path `/gnu/store/mdjkkkq69pdpfyl3zd4m8z6gmmn718hw-guix-package-cache'
cannot build derivation `/gnu/store/cwrvmrz8pp3s0swrgmggnfw9cfz9bjig-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 7fe0203b1340>)
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) 7fe0203b4c80>)))
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)
  2177:25  4 (run-with-store #<store-connection 256.99 7fe01d3a1fa0> ?)
In cuirass/scripts/evaluate.scm:
     89:8  3 (_ _)
In guix/store.scm:
  2049:38  2 (_ #<store-connection 256.99 7fdff50a6f00>)
  1428:15  1 (_ #<store-connection 256.99 7fdff50a6f00> _ _)
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/cwrvmrz8pp3s0swrgmggnfw9cfz9bjig-profile.drv' failed"
      status: 1