LC_ALL=C 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   53c64d7
guix pull: warning: failed to load '(wip android)':
Unbound variable: android-platform-version
guix pull: warning: failed to load '(wip pascal)':
Unbound variable: custom-gcc
Backtrace:
In ice-9/boot-9.scm:
   2862:4 19 (define-module* _ #:filename _ #:pure _ #:version _ # _ ?)
  2071:24 18 (call-with-deferred-observers #<procedure 2317140 at ic?>)
  2875:24 17 (_)
   222:17 16 (map1 (((guix utils)) ((guix config)) ((guix #)) ((?)) ?))
  2788:17 15 (resolve-interface (guix utils) #:select _ #:hide _ # _ ?)
  2714:10 14 (_ (guix utils) _ _ #:ensure _)
  2982:16 13 (try-module-autoload _ _)
   2312:4 12 (save-module-excursion #<procedure 236e960 at ice-9/boo?>)
  3002:22 11 (_)
In unknown file:
          10 (primitive-load-path "guix/utils" #<procedure 2133120 a?>)
In ice-9/eval.scm:
   721:20  9 (primitive-eval (define-module (guix utils) # (guix ?) ?))
In ice-9/psyntax.scm:
  1235:36  8 (expand-top-sequence ((define-module (guix utils) # ?)) ?)
  1182:24  7 (parse _ (("placeholder" placeholder)) ((top) #(# # ?)) ?)
   285:10  6 (parse _ (("placeholder" placeholder)) (()) _ c&e (eval) ?)
In ice-9/eval.scm:
   293:34  5 (_ #<module (#{ g17}#) 2226820>)
In ice-9/boot-9.scm:
   2862:4  4 (define-module* _ #:filename _ #:pure _ #:version _ # _ ?)
  2875:24  3 (_)
   222:17  2 (map1 (((guix config)) ((srfi srfi-1)) ((srfi #)) (#) ?))
   2791:6  1 (resolve-interface _ #:select _ #:hide _ #:prefix _ # _ ?)
In unknown file:
           0 (scm-error misc-error #f "~A ~S" ("no code for modu?" ?) ?)

ERROR: In procedure scm-error:
no code for module (guix config)
guix pull: error: You found a bug: the program '/gnu/store/njdhsdv216hyk23nfrc7wh9hbq17ymxk-compute-guix-derivation'
failed to compute the derivation for Guix (version: "53c64d7c9303d52cbacdaca5d182175d472c53db"; system: "x86_64-linux";
host version: "20f8d73face564deec2f21130fb465c8c3d9a8e9"; pull-version: 1).
Please report it by email to <bug-guix@gnu.org>.