bug#38377: `bad-response' throw with guix pull attempt

[Christopher Howard]

My system info from Neofetch:
OS: Debian GNU/Linux 9.11 (stretch) x86_64 
Model: 2347B46 ThinkPad T430 
Kernel: 4.9.0-11-amd64 
Uptime: 14 days, 6 minutes 
Packages: 3336 
Shell: bash 4.4.12 
Resolution: 1600x900, 1920x1200 
DE: GNOME 
WM: GNOME Shell 
WM Theme: Adwaita 
Theme: Adwaita [GTK2/3] 
Icons: Adwaita [GTK2/3] 
Terminal: gnome-terminal 
CPU: Intel i5-3320M (4) @ 3.3GHz 
GPU: Intel Integrated Graphics 
Memory: 6219MB / 7689MB 

$ guix --version
guix (GNU Guix) 3a69dd5c1558caa295b22476bbf00d88e62e81a8
Copyright (C) 2019 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.

$ guix pull --verbose
Updating channel 'guix' from Git repository at 'https://git.savannah.gn
u.org/git/guix.git'...
Building from this channel:
  guix      https://git.savannah.gnu.org/git/guix.git class="Apple-tab-
span" style="white-space:pre">  5d297ca
substitute: /gnu/store/q19l04vd2za80mk1845pz7r8cz29qk43-bash-minimal-
4.4.23/bin/bash: warning: setlocale: LC_ALL: cannot change locale
(en_US.utf8)
substitute: /gnu/store/q19l04vd2za80mk1845pz7r8cz29qk43-bash-minimal-
4.4.23/bin/bash: warning: setlocale: LC_ALL: cannot change locale
(en_US.utf8)
Computing Guix derivation for 'x86_64-linux'... /
substitute: updating substitutes from 'https://ci.guix.gnu.org'...   0.
2%Backtrace:
substitute:            3 (apply-smob/1 #<catch-closure 7a4580>)
substitute: In ice-9/boot-9.scm:
substitute:     705:2  2 (call-with-prompt _ _ #<procedure default-
prompt-handle…>)
substitute: In ice-9/eval.scm:
substitute:     619:8  1 (_ #(#(#<directory (guile-user) 847140>)))
substitute: In guix/ui.scm:
substitute:   1747:12  0 (run-guix-command _ . _)
substitute: 
substitute: guix/ui.scm:1747:12: In procedure run-guix-command:
substitute: Throw to key `bad-response' with args `("Bad Response-Line: 
~s" (""))'.
guix pull: error: substituter `substitute' died unexpectedly

-- 
Christopher Howard, Enterprise Solutions Manager, Alaska Satellite
Internet
3239 La Ree Way, Fairbanks, AK 99709
P.O. Box 70, Ester, AK 99725
p: 1-888-396-5623, f: 1-888-260-3584
https://alaskasatelliteinternet.com