What is the purpose of the test builds during setup?

[elchenberg]

It seems to me that the results of the test builds (success or failure) are completely ignored. Should we remove them then?

dind-nurse/pkg/setup.go

Lines 23 to 27 in 9bde468

	testBuild(ctx)
	testBuildx(ctx)
	return nil

If we do not delete them: Why should they fail when we already know (from awaitDocker) that the daemon is running? And if they fail, shouldn't there be some kind consequences (for example throwing an error so the container restarts or marking the container NotReady)?