Hi,
I just installed Guix on Ubuntu 22.04 using "sudo apt install guix", and I got this after a few attempts of "guix pull".
(sorry some parts of the logs are in French)

Thank you,
Théo

$ guix pull
Mise à jour du canal « guix » depuis le dépôt Git « https://git.savannah.gnu.org/git/guix.git »...
Authentification du canal « guix », commits 9edb3f6 à b50d22f (3 nouveaux commits)...
guix pull: warning: canal « guix » récupéré d'un miroir de https://git.guix.gnu.org/guix.git, qui peut être plus vieux
Construction depuis ce canal :
  guix      https://git.savannah.gnu.org/git/guix.git b50d22f
substitute: mise à jour des substituts depuis « https://ci.guix.gnu.org »...   0.0 %guix substitute: warning: ci.guix.gnu.org: connection failed: Connexion terminée par expiration du délai d'attente
substitute: 
construction de /gnu/store/sxwfrblr4nh6rwnylxf4vym47bsrn48r-compute-guix-derivation.drv...
substitute: mise ? jour des substituts depuis ??https://ci.guix.gnu.org??...   0.0 %
substitute: mise ? jour des substituts depuis ??https://ci.guix.gnu.org??...   0.0 %
construction de /gnu/store/j96114680bplvh42s0zpk866ljaamm69-guix-1.4.0-37.096dedd-checkout.drv...
-build-log 1069559 23
In guix/build/git.scm:
-ild-log 1069559 17
In guix/swh.scm:
-ild-log 1069559 9
    482:9@ build-log 1069559 4
  3 @ build-log 1069559 64
(lookup-directory-by-nar-hash #vu8(93 242 160 192 111 ?) ?)
-ild-log 1069559 3
In @ build-log 1069559 16
web/client.scm:
-ild-log 1069559 13
    348:4  0 @ build-log 1069559 48
(open-socket-for-uri _ #:verify-certificate? _)
-builder for `/gnu/store/j96114680bplvh42s0zpk866ljaamm69-guix-1.4.0-37.096dedd-checkout.drv' failed with exit code 1
Backtrace:
          13 (primitive-load "/gnu/store/9fwkqykmzrdhaa30p8jprmpp6qsj9m2i-compute-guix-derivation")
In ice-9/eval.scm:
    155:9 12 (_ _)
    159:9 11 (_ #(#(#(#(#(#(#(#(#(#(#(#(#(#(#(#(#<directory (guile-u?> ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?) ?))
In ice-9/boot-9.scm:
    152:2 10 (with-fluid* _ _ _)
    152:2  9 (with-fluid* _ _ _)
In ./guix/store.scm:
  2212:24  8 (run-with-store #<store-connection 256.99 73cb0da8c500> _ #:guile-for-build _ #:system _ #:target _)
   2040:8  7 (_ _)
In ./guix/gexp.scm:
   301:22  6 (_ _)
   1232:2  5 (_ _)
   1099:2  4 (_ _)
    940:4  3 (_ _)
In ./guix/store.scm:
  2097:12  2 (_ #<store-connection 256.99 73cb0da8c500>)
   1434:5  1 (map/accumulate-builds #<store-connection 256.99 73cb0da8c500> #<procedure 73cafc521930 at ./guix/stor?> ?)
  1450:15  0 (_ #<store-connection 256.99 73cb0da8c500> _ _)

./guix/store.scm:1450:15: ERROR:
  1. &store-protocol-error:
      message: "build of `/gnu/store/wmg4dj60i66mdh3m5igxwhsd74ndyb8j-guix-daemon-1.4.0-37.096dedd.drv' failed"
      status: 1
guix pull: error: You found a bug: the program '/gnu/store/9fwkqykmzrdhaa30p8jprmpp6qsj9m2i-compute-guix-derivation'
failed to compute the derivation for Guix (version: "b50d22f3dfa3030a1d29cb181e6dc62082777380"; system: "x86_64-linux";
host version: "1.3.0"; pull-version: 1).
Please report the COMPLETE output above by email to <bug-guix@gnu.org>.