In ./guix/store.scm:
   1685:8  5 (_ _)
  1708:38  4 (_ #<store-connection 256.99 91da840>)
In ./guix/packages.scm:
   948:16  3 (cache! #<weak-table 210/443> #<package guile-gcrypt@0?> ?)
  1267:22  2 (thunk)
  1200:25  1 (bag->derivation #<store-connection 256.99 91da840> #<?> ?)
In srfi/srfi-1.scm:
   592:17  0 (map1 (("source" #<origin #<<git-reference> url: "?>) ?))

srfi/srfi-1.scm:592:17: In procedure map1:
Throw to key `srfi-34' with args `(#<condition &store-protocol-error
[message: "build of
`/gnu/store/j5lp13iwcwnsdk545lgg1nh8kn4jdj3d-ghostscript-9.27.drv' failed"
status: 100] 5348cc0>)'.
guix pull: error: You found a bug: the program
'/gnu/store/an0wa7l9726cchav86ixjy520lnq5srx-compute-guix-derivation'
failed to compute the derivation for Guix (version:
"0230b92fde80b2288028582434034ad0827a61b1"; system: "x86_64-linux";
host version: "bd208a13ef4c203cf9035c0ccf454a60c1949c58"; pull-version: 1).
Please report it by email to <bug-guix@gnu.org>.

glc@g1 ~ [def]$ date
Thu Oct 17 06:46:53 EDT 2019
glc@g1 ~ [def]$

glc@g1 ~ [def]$ guix -V
guix (GNU Guix) bd208a13ef4c203cf9035c0ccf454a60c1949c58
Copyright (C) 2018 the Guix authors
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html
>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
glc@g1 ~ [def]$