I have a guix home configuration with herd services (mcron jobs).
When I run guix home reconfigure, and the user herd daemon is
running, then I get the following errors:
herd: exception caught while executing 'load' on service 'root':
In procedure fport_write: Broken pipe
When I run the SAME reconfigure command, but BEFORE running
it executing herd stop root. THEN I do not get this error, and the services
do appear correctly.