Hi,

Could you help me find out what I'm doing wrong here, please? :)

I have a custom channel 
(https://codeberg.org/luis-felipe/guix-channel-x) that had been working 
fine for a very long time, but now running "guix pull" fails with the 
following error:

#+begin_quote
building /gnu/store/3aghnb3nbxmgl5f2fsjchz27iwsdz0rl-luflac-x.drv...
-builder for `/gnu/store/3aghnb3nbxmgl5f2fsjchz27iwsdz0rl-luflac-x.drv' 
failed to produce output path
`/gnu/store/zpmgrl9sz83ininzainjs9kjk25wymsw-luflac-x'
build of /gnu/store/3aghnb3nbxmgl5f2fsjchz27iwsdz0rl-luflac-x.drv failed
View build log at 
'/var/log/guix/drvs/3a/ghnb3nbxmgl5f2fsjchz27iwsdz0rl-luflac-x.drv.gz'.
cannot build derivation 
`/gnu/store/99w71gp2rxzb7g1ij62qag769bryxwzi-profile.drv': 1 dependencies
couldn't be built
guix pull: error: build of 
`/gnu/store/99w71gp2rxzb7g1ij62qag769bryxwzi-profile.drv' failed
#+end_quote

And the referenced build log reads as follows:

#+begin_quote
(repl-version 0 1 1)
guix repl: warning: '%gnu-build-system-modules' is deprecated,
use '%default-gnu-imported-modules' instead
WARNING: (guix build guile-easy-build-system):
imported module (guix build utils) overrides core binding `delete'
(exception match-error (value "match") (value "no matching pattern") 
(value ()))
#+end_quote

My "channels.scm" configuration looks like this:

#+begin_src scheme
;;; Guix channels definitions.
;;; Location: ~/.config/guix/channels.scm

(use-modules (guix ci))

(list
  (channel
   (name 'luflac-x)
   (url "https://codeberg.org/luis-felipe/guix-channel-x.git")
   (branch "trunk")
   (introduction
    (make-channel-introduction
     "53e5e8864d04efb8d7315719575718665c68c792"
     (openpgp-fingerprint
      "0910 827A 2E06 1E61 6C06  AC3D 0AB0 D067 012F 08C3"))))

  (channel-with-substitutes-available
   %default-guix-channel
"https://ci.guix.gnu.org"))
#+end_src

Wanting to debug the problem using a local copy of my channel, I changed 
my channel's record in "channels.scm" as follows:

#+begin_src scheme
(use-modules (guix ci))

(list
  #;
  (channel
   (name 'luflac-x)
   (url "https://codeberg.org/luis-felipe/guix-channel-x.git")
   (branch "trunk")
   (introduction
    (make-channel-introduction
     "53e5e8864d04efb8d7315719575718665c68c792"
     (openpgp-fingerprint
      "0910 827A 2E06 1E61 6C06  AC3D 0AB0 D067 012F 08C3"))))
  ;; NOTE: Use the following definition to debug the channel locally.
  (channel
   (name 'luflac-x)
   (url (string-append (getenv "HOME") "/guix-channel-x"))
   (branch "debug")
   (introduction
    (make-channel-introduction
     "53e5e8864d04efb8d7315719575718665c68c792"
     (openpgp-fingerprint
      "0910 827A 2E06 1E61 6C06  AC3D 0AB0 D067 012F 08C3"))))

  (channel-with-substitutes-available
   %default-guix-channel
   "https://ci.guix.gnu.org"))
#+end_src

But then "guix pull" fails with the following error:

#+begin_quote
Updating channel 'luflac-x' from Git repository at 
'/home/yo/guix-channel-x'...
guix pull: error: Git error: cannot locate remote-tracking branch 
'origin/debug'
#+end_quote

I don't understand why git is looking for a remote-tracking branch in 
"origin". The "debug" branch is available locally only. And even if I 
push it to origin, I get the same error when running "guix pull" again.

Also, if I change the branch to "trunk", I get the following error:

#+begin_quote
Updating channel 'luflac-x' from Git repository at 
'/home/yo/guix-channel-x'...
guix pull: error: Git error: cannot locate remote-tracking branch 
'origin/keyring'
#+end_quote

Even though the "keyring" branch exists both locally and remotely (in 
"origin")...

Finally, and for what it's worth, I can import all modules in the 
channel from a Guile REPL without errors.

Thanks in advance,


-- 
Luis Felipe López Acevedo
https://luis-felipe.gitlab.io/