[nix-shell:~/projects/guix]$ /gnu/store/xl3ziy7wrr5v7dngmwk031wmjwyz7w2m-guix-command pull --url="https://codeberg.org/guix/guix" -c $(nproc)
hint: Consider installing the `glibc-locales' package and defining `GUIX_LOCPATH', along these lines:

     guix install glibc-locales
     export GUIX_LOCPATH="$HOME/.guix-profile/lib/locale"

See the "Application Setup" section in the manual, for more info.

Updating channel 'guix' from Git repository at 'https://codeberg.org/guix/guix'...
guix pull: warning: pulled channel 'guix' from a mirror of https://git.guix.gnu.org/guix.git, which might be stale
Building from this channel:
  guix      https://codeberg.org/guix/guix	442fff8
substitute: Backtrace:
substitute: In ice-9/boot-9.scm:
substitute:   1755:12  8 (with-exception-handler _ _ #:unwind? _ #:unwind-for-type _)
substitute: In unknown file:
substitute:            7 (apply-smob/0 #<thunk 7fea16fd1300>)
substitute: In ice-9/boot-9.scm:
substitute:     724:2  6 (call-with-prompt _ _ #<procedure default-prompt-handler (k proc)>)
substitute: In ice-9/eval.scm:
substitute:     619:8  5 (_ #(#(#<directory (guile-user) 7fea16fd5c80>)))
substitute: In guix/ui.scm:
substitute:    2369:7  4 (run-guix . _)
substitute:   2332:10  3 (run-guix-command _ . _)
substitute: In guix/scripts/substitute.scm:
substitute:    732:20  2 (guix-substitute "--query")
substitute: In ice-9/ports.scm:
substitute:    439:17  1 (call-with-input-file _ _ #:binary _ #:encoding _ #:guess-encoding _)
substitute: In gcrypt/pk-crypto.scm:
substitute:    114:12  0 (_ _)
substitute: 
substitute: gcrypt/pk-crypto.scm:114:12: In procedure string->canonical-sexp: gcrypt: Invalid length specifier in S-expression
guix pull: error: `/nix/store/r954qryd6yfn4a4g6mfgds9k5r5dfmd1-guix-1.4.0-unstable-2025-06-24/bin/guix substitute' died unexpectedly