The truncated log files seems to happen for other builds as well, even
within the Berlin data center.

https://ci.guix.gnu.org/log/n3ra1b8ic6qhfinnhb80mrn7snsqws9d-geocode-glib-3.26.0
https://ci.guix.gnu.org/log/zqhqlib00i8f7f10g4c2dfzprw16h4xv-scintilla-4.2.0
https://ci.guix.gnu.org/log/718jmbq94mvdgnmjyqgxgy7zaj8xzxk3-htslib-1.9

All of these builds are for i686-linux.

Mark: are the armhf nodes still operational?  I would like to re-enable
them again, since we desperately need the computing power with four huge
branches going concurrently at the moment.