clean up

Signed-off-by: Josh Chorlton <jchorlton@gmail.com>

cgroup2/manager.go

@@ -960,6 +960,7 @@ func startUnit(conn *systemdDbus.Conn, group string, properties []systemdDbus.Pr
 			return fmt.Errorf("error creating systemd unit `%s`: got `%s`", group, s)
 		}
 	case <-time.After(systemdStartUnitTimeout):
+		attemptFailedUnitReset(conn, group)
 		return fmt.Errorf("Timed out while waiting for StartTransientUnit(%s) completion signal from dbus after %v", group, systemdStartUnitTimeout)
 	}