Stable version updates aren't working properly.  Starting with the
2018-33 run (2018-08-14), you see this in the logs:

Tue Aug 14 04:00:03 PDT 2018
Dry run:  no changes will be made.
Applying stable version changes:


The "dry run" message means just that:  We're now calculating the
changes needed, but not actually applying those changes.

Compounding matters:  Starting with that same run, the e-mail for
the job no longer goes out, so we're getting no notification of the
problem.

This problem is modestly urgent:  If the update script doesn't run
often enough, DUTs will start failing repair.  The entire lab could
go down overnight.  Our only protection is that "often enough" is
something like "every 6 months or so", but, really, that's no help...