"MountVolume.SetUp failed" when log-file attribute is set

[miwig]

Setting log-file as a volume attribute causes this error:
MountVolume.SetUp failed for volume "myvolume" : rpc error: code = DeadlineExceeded desc = context deadline exceeded
which happens because
out, err := exec.Command(mountCmd, mountArgs...).CombinedOutput() in NodePublishVolume never returns.