Hello, I did not know how to get the info better, so here is a screenshot about the situation.
This happened when I was trying a pre-inst-env guix build from a core-updates checkout. Previously python3 failed to build, and I was trying to build it again. Best regards, g_bor -- OpenPGP Key Fingerprint: 7988:3B9F:7D6A:4DBF:3719:0367:2506:A96C:CF63:0B21