I see the following error messages in my logs at boot time:

dbus[1036]: [system] Activating via systemd: service name='org.bluez'
unit='dbus-org.bluez.service'
systemd[1]: Starting Bluetooth service...
bluetoothd[2254]: Bluetooth daemon 5.35
dbus[1036]: [system] Successfully activated service 'org.bluez'
systemd[1]: Started Bluetooth service.
bluetoothd[2254]: Failed to access management interface
bluetoothd[2254]: Adapter handling initialization failed
systemd[1]: bluetooth.service: main process exited, code=exited,
status=1/FAILURE
systemd[1]: Unit bluetooth.service entered failed state.
pulseaudio[1956]: [pulseaudio] bluez5-util.c: GetManagedObjects() failed:
org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by
message bus)

This is only a minor annoyance for me as there is no bluetooth hardware on this
machine. However I believe the service should not fail in that case.