guix pull: error: corrupt input while restoring archive

[Simon Josefsson via <help-guix@gnu.org>]

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Hi.  I have a machine that have been running Guix for a couple of years
and since November I rely on unattended-upgrades to keep it updated.  I
have stopped doing manual upgrades but may have done it on reflex a
couple of times since November.  Now when I run 'guix pull' the errors
below are shown.  What does it mean?  How do I recover?

I'm attaching the two last unattended-upgrades logs since there are a
couple of weird errors in it too -- it is hard to tell when things
happened since timestamps are lacking though.

Thanks,
/Simon

root@hamster ~# guix pull
Updating channel 'guix' from Git repository at 'https://git.savannah.gnu.org/git/guix.git'...
Building from this channel:
  guix      https://git.savannah.gnu.org/git/guix.git	0374617
Computing Guix derivation for 'x86_64-linux'... /
The following derivations will be built:
   /gnu/store/m1qdzyhl3r3979w9bgpxprw2fqrpxzfb-profile.drv
   /gnu/store/2vq93a23y7dp615hprh00jif9r0b4cxw-guix-037461792.drv
   /gnu/store/0q7942g24c3yd48wb93y942kmj6s3hvp-guix-command.drv
   /gnu/store/8ia9xvwz2aqfxk94crmndasnk9px366a-guix-module-union.drv
   /gnu/store/1xhgz2qgiwf2x0v8ffy1lh4syzl7cj2d-guix-037461792-modules.drv
   /gnu/store/1n04rgahyalbdbj852wjz5w9jr7p83jm-guix-system-modules.drv
   /gnu/store/29wq3lkkxgnlzsl4npf0ipjzj3h65vxy-guix-core-modules.drv
   /gnu/store/ghg84r9nxvg044msw5yyg3ayya173yac-guix-core-source.drv
   /gnu/store/4fqbng9f9rqysik073xk7narifnadbw2-guix-packages-base-modules.drv
   /gnu/store/gxm22830afsym9h246axyn01wlg4p6d1-guix-config-modules.drv
   /gnu/store/3ij0jpi5ryhlj3jgdn1xsrac8v2khbg7-guix-config-source.drv
   /gnu/store/cxmrhhgl9q2habbsgv6b3f7sjqy02pbc-config.scm.drv
   /gnu/store/brcrh5dnbhqi04abh78r0qhza63ph470-guix-config.drv
   /gnu/store/i5p14ialmzxsvf94nizf20kffdn986cz-guix-extra-modules.drv
   /gnu/store/j5ni6cjgb55ri3qa2f7b8xpviy0jgkjr-guix-cli-modules.drv
   /gnu/store/jj6hfbqfxjnvbsvz3g328png3nwsyxf6-guix-packages-modules.drv
   /gnu/store/ww1jqx2wk19wbg342fin9k6p4qm6hv3i-guix-system-tests-modules.drv
   /gnu/store/vd77mjsik676fqca9l23ljxgavxj5x4r-guix-daemon.drv
   /gnu/store/a673nzfw8pdppwrb6m7xj0631qsb9z7k-profile.drv
   /gnu/store/kbn57bk7ghw3qi8hk00gjyn5r2rdl3j1-inferior-script.scm.drv

19.7 MB will be downloaded
downloading from https://ci.guix.gnu.org/nar/lzip/znswpawdi6wdd7a2jlh53ya7fscp5322-guix-packages-base ...
 guix-packages-base  9.5MiB                                                                       3.1MiB/s 00:03 [##################] 100.0%

downloading from https://ci.guix.gnu.org/nar/lzip/9ba9smischbqpl5a12nfipcwwkb6bl1f-guix-system ...
 guix-system                                                                                             3.8MiB/s 00:02 | 7.1MiB transferred

Backtrace:
In guix/ui.scm:
  2164:12 19 (run-guix-command _ . _)
In guix/scripts/substitute.scm:
    652:2 18 (guix-substitute . _)
In unknown file:
          17 (with-continuation-barrier #<procedure thunk ()>)
In ice-9/boot-9.scm:
  1736:10 16 (with-exception-handler _ _ #:unwind? _ # _)
In unknown file:
          15 (apply-smob/0 #<thunk 7f0ce8e40080>)
In ice-9/boot-9.scm:
  1736:10 14 (with-exception-handler _ _ #:unwind? _ # _)
  1736:10 13 (with-exception-handler _ _ #:unwind? _ # _)
  1731:15 12 (with-exception-handler #<procedure 7f0ce82cbe70 at ic…> …)
In guix/scripts/substitute.scm:
   701:17 11 (_)
    410:7 10 (process-substitution _ "/gnu/store/nvx8kkadjl81k5h544…" …)
In ice-9/boot-9.scm:
  1736:10  9 (with-exception-handler _ _ #:unwind? _ # _)
In guix/scripts/substitute.scm:
    419:9  8 (_)
In ice-9/boot-9.scm:
  1731:15  7 (with-exception-handler #<procedure 7f0cdf908210 at ic…> …)
  1669:16  6 (raise-exception _ #:continuable? _)
  1667:16  5 (raise-exception _ #:continuable? _)
  1669:16  4 (raise-exception _ #:continuable? _)
  1764:13  3 (_ #<&compound-exception components: (#<&error> #<&irri…>)
  1669:16  2 (raise-exception _ #:continuable? _)
  1667:16  1 (raise-exception _ #:continuable? _)
  1669:16  0 (raise-exception _ #:continuable? _)

ice-9/boot-9.scm:1669:16: In procedure raise-exception:
Throw to key `bad-response' with args `("Bad Response-Line: ~s" (""))'.
Backtrace:
In ice-9/boot-9.scm:
  1736:10  4 (with-exception-handler _ _ #:unwind? _ # _)
In unknown file:
           3 (apply-smob/0 #<thunk 7f0cea95a520>)
In ice-9/boot-9.scm:
    718:2  2 (call-with-prompt _ _ #<procedure default-prompt-handle…>)
In ice-9/eval.scm:
    619:8  1 (_ #(#(#<directory (guile-user) 7f0cea95dc80>)))
In guix/ui.scm:
  2164:12  0 (run-guix-command _ . _)

guix/ui.scm:2164:12: In procedure run-guix-command:
Throw to key `bad-response' with args `("Bad Response-Line: ~s" (""))'.
substitution of /gnu/store/nvx8kkadjl81k5h544y4kahz6jlzqqyl-guix-system-tests failed
guix pull: error: corrupt input while restoring archive from #<closed: file 7f96eb6d3c40>
root@hamster ~# 

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