No devices detected by update script

When running the update script on an Rpi3/Raspbee there are no devices detected - even when including it.

docker run -it --rm --entrypoint "/firmware-update.sh" --privileged --cap-add=ALL -v /dev:/dev -v /lib/modules:/lib/modules -v /sys:/sys deconzcommunity/deconz

When force feeding it the device and hard pointing it to the online firmware it even claims it cannot find the firmware, neither local nor online. Where would I start troubleshooting this?