It seems that your pool does not send an authorization message so the miner knows the worker name you put in is valid.
The protocol behavior (that suprnova, minexpool, optiminer, 4rigs and co are using) that is expected by the miner equals the one of zcash:
https://github.com/slushpool/poclbm-zcash/wiki/Stratum-protocol-changes-for-ZCash

you see after the miner subscribed to the pool it sends a mining.authorize request, but your pool does not answer ({"id": 2, "result": true, "error": null}\n for success, insert false if not). Therefore it does not start mining.