What I did:
Ran guix system installer from a DVD.
When the system started I switched to tty3 mounted a flash drive and a partition in folders I made in /mnt/.
Then I unmounted these disks and removed folders.
Then I tried installing the system without any DE/WM.
The installer asked me what network something I want to have, I picked DHCP.
Then installation failed - "failed to build openssh".
It asked me if I want to try again, I pressed yes and the installer threw an error I attached below.
Guix version: 1.0.1
System: amd64