Evaluation of master failed on Hydra

[Mark H Weaver]

The evaluation of 'master' (commit 588b22575) on Hydra failed with the
following error.

       Mark


Backtrace:
In unknown file:
   ?: 19 [call-with-input-string "(apply (module-ref (resolve-interface 
'(hydra-eval-guile-jobs)) 'eval-guile-jobs) (cdr (comma
nd-line)))" ...]
In ice-9/command-line.scm:
 181: 18 [#<procedure 1022320 at ice-9/command-line.scm:176:6 (port)> #<input: 
string 18f4c30>]
In unknown file:
   ?: 17 [eval (apply (module-ref # #) (cdr #)) #<directory (guile-user) 
ffdbd0>]
In /usr/local/bin/hydra-eval-guile-jobs:
 240: 16 [eval-guile-jobs 
"/gnu/store/3yvk9lzf80sjw0bx12vhwjrsjqhd0rsk-git-export/build-aux/hydra/gnu-system.scm"
 ...]
In ice-9/eval.scm:
 481: 15 [lp (#<fluid 38>) (#f)]
In srfi/srfi-1.scm:
 643: 14 [append-map #<procedure 1886db0 at ice-9/eval.scm:416:20 (a)> #]
 575: 13 [map #<procedure 1886db0 at ice-9/eval.scm:416:20 (a)> #]
In ice-9/eval.scm:
 387: 12 [eval # #]
 387: 11 [eval # #]
 387: 10 [eval # #]
In guix/store.scm:
1437: 9 [run-with-store # #<procedure baac330 at ice-9/eval.scm:416:20 (a)> # 
...]
In ice-9/eval.scm:
 386: 8 [eval #<memoized ((<3> <1>) <0>)> (# #f # ...)]
In gnu/system/vm.scm:
 319: 7 [system-disk-image # # "disk-image" ...]
In gnu/system.scm:
 770: 6 [operating-system-derivation # # #f]
In gnu/services.scm:
 672: 5 [loop #]
In srfi/srfi-1.scm:
 575: 4 [map #<procedure 190a93a0 at gnu/services.scm:661:4 (service)> (# # #)]
In gnu/services.scm:
 537: 3 [packages->profile-entry (# # # # ...)]
In guix/profiles.scm:
 302: 2 [packages->manifest (# # # # ...)]
In srfi/srfi-1.scm:
 575: 1 [map #<procedure 4d4e580 at guix/profiles.scm:303:8 (expr)> (# # # # 
...)]
In guix/profiles.scm:
 303: 0 [#<procedure 4d4e580 at guix/profiles.scm:303:8 (expr)> #]

guix/profiles.scm:303:8: In procedure #<procedure 4d4e580 at 
guix/profiles.scm:303:8 (expr)>:
guix/profiles.scm:303:8: Throw to key `match-error' with args `("match" "no 
matching pattern" #<directory (gnu system shadow) 4fa4990>)'.
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