docker run -td --name projeto -p 3306:3306 ambiente-dev-projeto-php56-newimage

Error response from daemon: driver failed programming external connectivity on endpoint eLicitacao (b798a52246aca15563410c8967931be996eda3b4a8dffc3a261a75bda547bae1): Error starting userland proxy: listen tcp 0.0.0.0:3306: bind: address already in use.

Job for mysql.service failed because the control process exited with error code.
See "systemctl status mysql.service" and "journalctl -xe" for details.