Just a few warnings from starting dockerd

[LostKobrakai]

I'm not sure about those, but they sounded like we can do something about them by e.g. suggesting special config:

00:00:01.343 [debug] dockerd: ing file to signal mount cleanup on shutdown: open /var/run/docker/unmount-on-shutdown: no such file or directory"

[…]

00:00:01.369 [debug] dockerd: time="2019-10-04T00:00:01.369591054Z" level=info msg="parsed scheme: \"unix\"" module=grpc

00:00:01.369 [debug] dockerd: time="2019-10-04T00:00:01.369627388Z" level=info msg="scheme \"unix\" not registered, fallback to default scheme" module=grpc

[…]

00:00:02.061 [debug] dockerd: time="2019-10-04T00:00:02.061873961Z" level=warning msg="Unable to find blkio cgroup in mounts"

00:00:02.062 [debug] dockerd: time="2019-10-04T00:00:02.062076924Z" level=warning msg="Unable to find cpuset cgroup in mounts"

00:00:02.062 [debug] dockerd: time="2019-10-04T00:00:02.062307609Z" level=warning msg="mountpoint for pids not found"