The new job must always succeed so that it gives us a green ✓ (details below).
Let it run for some days to see that a variety of different PR types get to run on it (user fork branches,
   non-forked branches, branches originating from github.com UI direct file edit, various forced pushes, etc. - there
   are so many) while monitoring the experimental job's logs (not the overall job green as it's purposefully always
   green)
When it's clear that everything is solid, then merge the new changes into existing jobs.
That way experiments on CI functionality itself won't interfere with the normal workflow.
Now how can we make the job always succeed while the new CI feature is being developed?
Some CIs, like TravisCI support ignore-step-failure and will report the overall job as successful, but CircleCI and
