Can't connect to rauc - what does this mean?

Everytime I restart hass.io I get this in the system log:

19-01-03 13:08:18 INFO (MainThread) [__main__] Initialize Hass.io setup
19-01-03 13:08:18 INFO (MainThread) [__main__] Setup HassIO
19-01-03 13:08:18 INFO (SyncWorker_0) [hassio.docker.supervisor] Attach to Supervisor homeassistant/armhf-hassio-supervisor with version 141
19-01-03 13:08:18 INFO (MainThread) [hassio.utils.gdbus] Introspect org.freedesktop.systemd1 on /org/freedesktop/systemd1
19-01-03 13:08:18 INFO (MainThread) [hassio.utils.gdbus] Connect to dbus: org.freedesktop.systemd1 - /org/freedesktop/systemd1
19-01-03 13:08:18 INFO (MainThread) [hassio.utils.gdbus] Introspect org.freedesktop.hostname1 on /org/freedesktop/hostname1
19-01-03 13:08:19 INFO (MainThread) [hassio.utils.gdbus] Connect to dbus: org.freedesktop.hostname1 - /org/freedesktop/hostname1
19-01-03 13:08:19 INFO (MainThread) [hassio.utils.gdbus] Introspect de.pengutronix.rauc on /
19-01-03 13:08:19 ERROR (MainThread) [hassio.utils.gdbus] DBus return error: b'Error: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name de.pengutronix.rauc was not provided by any .service files\n'
19-01-03 13:08:19 WARNING (MainThread) [hassio.dbus.rauc] Can't connect to rauc

What is this and what can I do about it?

Thanks

I have the same issue after the upgrade to hassio 0.86.2

Same issue with Hassio in docker on a raspberry pi 2B

19-01-26 15:02:53 INFO (MainThread) [hassio.utils.gdbus] Connect to dbus: org.freedesktop.hostname1 - /org/freedesktop/hostname1
19-01-26 15:02:53 INFO (MainThread) [hassio.utils.gdbus] Introspect de.pengutronix.rauc on /
19-01-26 15:02:53 ERROR (MainThread) [hassio.utils.gdbus] DBus return error: b’Error: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name de.pengutronix.rauc was not provided by any .service files\n’
19-01-26 15:02:53 WARNING (MainThread) [hassio.dbus.rauc] Can’t connect to rauc
19-01-26 15:02:53 INFO (MainThread) [hassio.host.info] Update local host information

issue disappeared after upgrade to 0.86.3

Back in 0.94.3

19-06-19 10:37:52 ERROR (MainThread) [hassio.utils.gdbus] DBus return error: b’Error: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name de.pengutronix.rauc was not provided by any .service files\n’
19-06-19 10:37:52 WARNING (MainThread) [hassio.dbus.rauc] Can’t connect to rauc

Yeah it is back from 0.94.3, what is it anyway?

Same issue with Hassio at 95.4, performance seems to have become quite sluggish too