bug#79539: guix time-machine: error: You found a bug

[Maurice Brémond]

Hello,

Desperately trying to find a valid channel for guix, guix-science,
guix-science-nonfree, and guix-past, I get this error:

>guix time-machine -C .channels.scm -- describe
Updating channel 'guix-science-nonfree' from Git repository at 
'https://codeberg.org/guix-science/guix-science-nonfree.git'...
Updating channel 'guix' from Git repository at 
'https://codeberg.org/guix/guix-mirror'...
Updating channel 'guix-science' from Git repository at 
'https://codeberg.org/guix-science/guix-science.git'...
/scratch/maurice/build/siconos-debug/.siconos-vrun-channels.scm:23:6: warning: 
channel 'guix-science' lacks 'introduction' field but '.guix-authorizations' 
found
Updating channel 'guix-past' from Git repository at 
'https://codeberg.org/guix-science/guix-past.git'...
Computing Guix derivation for 'x86_64-linux'... -ice-9/psyntax.scm:2824:12: In 
procedure syntax-violation:
Syntax error:
unknown location: package: duplicate field initializer in form (home-page 
"https://hypothesis.works/";)
guix time-machine: error: You found a bug: the program 
'/gnu/store/m1135whxbpr4apfa8lv4wg60m6qngfqm-compute-guix-derivation'
failed to compute the derivation for Guix (version: 
"8a71151402d1e0bc7f51ebee05599f83d293c491"; system: "x86_64-linux";
host version: "6d48eaa9a3b305f96c45028b2852a3a56c3f897b"; pull-version: 1).
Please report the COMPLETE output above by email to <bug-guix@gnu.org>.

My .channels.scm file is:

#+begin_src scheme
(list (channel
        (name 'guix-science-nonfree)
        (url "https://codeberg.org/guix-science/guix-science-nonfree.git";)
        (branch "master")
        (commit
          "86f3bd89a211eddc4db273de8ce6cf3bbfccfba1")
        (introduction
          (make-channel-introduction
            "58661b110325fd5d9b40e6f0177cc486a615817e"
            (openpgp-fingerprint
              "CA4F 8CF4 37D7 478F DA05  5FD4 4213 7701 1A37 8446"))))
      (channel
        (name 'guix)
        (url "https://codeberg.org/guix/guix-mirror";)
        (branch "master")
        (commit
          "8a71151402d1e0bc7f51ebee05599f83d293c491")
        (introduction
          (make-channel-introduction
            "9edb3f66fd807b096b48283debdcddccfea34bad"
            (openpgp-fingerprint
              "BBB0 2DDF 2CEA F6A8 0D1D  E643 A2A0 6DF2 A33A 54FA"))))
      (channel
        (name 'guix-science)
        (url "https://codeberg.org/guix-science/guix-science.git";)
        (commit
          "345dfdf8b9afbae96a8d4c47820e1b058d696093"))
      (channel
        (name 'guix-past)
        (url "https://codeberg.org/guix-science/guix-past.git";)
        (branch "master")
        (commit
          "a6fc9859837de4a3d8cc824845f8bd28f68c530f")
        (introduction
          (make-channel-introduction
            "0c119db2ea86a389769f4d2b9c6f5c41c027e336"
            (openpgp-fingerprint
              "3CE4 6455 8A84 FDC6 9DB4  0CFB 090B 1199 3D9A EBB5")))))
#+end_src



Cheers,

Maurice