So I have trying to pull and install Guix system on a raspberry pi 3 with guix on foreign distro from some days now with problems.
Now I saw that 1.4.0rc is out I'm trying to test it.

I used the command:

sudo -i guix pull --debug=5 --branch=version-1.4.0 --allow-downgrades 2>&1 | tee bug.log

Moisés Simón