running 'guix pull' with guix package manager under Debian 6.1.159-1 (2025-12-30) x86_64 provided this output, and then instructed me to place it here, hope this helps :)
''' Updating channel 'nonguix' from Git repository at 'https://gitlab.com/nonguix/nonguix'... Updating channel 'guix' from Git repository at 'https://git.savannah.gnu.org/git/guix.git'... Authenticating channel 'guix', commits 9edb3f6 to 1a2ea60 (88 new commits)... guix pull: warning: pulled channel 'guix' from a mirror of https://git.guix.gnu.org/guix.git, which might be stale Building from these channels: guix https://git.savannah.gnu.org/git/guix.git 1a2ea60 nonguix https://gitlab.com/nonguix/nonguix f5338f6 substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://bordeaux.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://bordeaux.guix.gnu.org'... 100.0% building /gnu/store/qwn2mxc9g0dm40dnmjymrr5h0ld08xfw-module-import.drv... building /gnu/store/r8h9ic54wvfbbid845dxh0savi5bk161-module-import.drv... building /gnu/store/vl7m7mi0272jg193d95hzy89x1jlbl1b-module-import-compiled.drv... building /gnu/store/5nhl2jr0k4jxgrkid59v0qxwi6nwx20j-module-import-compiled.drv... building /gnu/store/g0gr2359nzqr4fj8rgj9ij28als5vzaw-compute-guix-derivation.drv... Computing Guix derivation for 'x86_64-linux'... \Backtrace: In ./guix/packages.scm: 2017:6 19 (_ #<store-connection 256.99 7f7cd95f2640>) In ./guix/monads.scm: 475:9 18 (_ #<store-connection 256.99 7f7cd95f2640>) In ./guix/packages.scm: 1769:7 17 (_ #<store-connection 256.99 7f7cd95f2640>) In ./guix/store.scm: 1744:8 16 (_ #<store-connection 256.99 7f7cd95f2640>) In ./guix/packages.scm: 2096:11 15 (_ #<store-connection 256.99 7f7cd95f2640>) 2017:6 14 (_ #<store-connection 256.99 7f7cd95f2640>) In ./guix/monads.scm: 475:9 13 (_ #<store-connection 256.99 7f7cd95f2640>) In ./guix/packages.scm: 1769:7 12 (_ #<store-connection 256.99 7f7cd95f2640>) In ./guix/store.scm: 1744:8 11 (_ #<store-connection 256.99 7f7cd95f2640>) In ./guix/packages.scm: 2096:11 10 (_ #<store-connection 256.99 7f7cd95f2640>) In ./gnu/packages/bootstrap.scm: 468:2 9 (_ #<store-connection 256.99 7f7cd95f2640>) In ./guix/store.scm: 1744:8 8 (_ #<store-connection 256.99 7f7cd95f2640>) In ./guix/gexp.scm: 302:22 7 (_ #<store-connection 256.99 7f7cd95f2640>) In ./guix/download.scm: 517:8 6 (_ #<store-connection 256.99 7f7cd95f2640>) In ./guix/store.scm: 1788:38 5 (_ #<store-connection 256.99 7f7cd95f2640>) In unknown file: 4 (force #<promise #<procedure 7f7cd8434de0 at ./guix/store.scm:497:34 ()>>) In ./guix/store.scm: 673:0 3 (_ #<store-connection 256.99 7f7cd95f2640>) In srfi/srfi-1.scm: 548:20 2 (unfold #<procedure 7f7cb9d50100 at ./guix/serialization.scm:196:12 (t-16bf3393015779c8-18d4)> #<proce?> ?) In ./guix/serialization.scm: 159:16 1 (read-string #<input-output: file 10>) 156:5 0 (read-byte-string #<input-output: file 10>) ./guix/serialization.scm:156:5: In procedure read-byte-string: error: bytevector-slice: unbound variable guix pull: error: You found a bug: the program '/gnu/store/59bzs6cb7qgi0a2xnambfmznqrgmc3ah-compute-guix-derivation' failed to compute the derivation for Guix (version: "1a2ea60946328e47bb965ef6225a3857ce5b6240"; system: "x86_64-linux"; host version: "1.4.0rc2"; pull-version: 1). Please report the COMPLETE output above by email to <[email protected]>. '''
