Hi, when I use the latest version I get an error when calling a Lambda. 

I get this error:
Lambda process returned error status code: 1. Output:
awssvc           | 2019-05-10T22:23:19.822966331Z Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Post http://%2Fvar%2Frun%2Fdocker.sock/v1.29/containers/create: dial unix /var/run/docker.sock: connect: permission denied
awssvc           | 2019-05-10T22:23:19.822969899Z must specify at least one container source

I'am using the Lambda in a docker. 

You can find my setup here: https://github.com/blaart/stream-my-changes
After forcing to use the 0.9.1 version all works fine again.  

try:
        print_error = retries <= 0
        
        for name, plugin in SERVICE_PLUGINS.items():
            if name in apis:
                try:
                    plugin.check(expect_shutdown=expect_shutdown, print_error=print_error)
                except Exception as e:
                    LOG.warning('Service "%s" not yet available, retrying...' % name)
                    raise e
        for additional in additional_checks:
            additional(expect_shutdown=expect_shutdown)
    except Exception as e:
        if retries <= 0:
            LOG.error('Error checking state of local environment (after some retries): %s' % traceback.format_exc())
            raise e
        time.sleep(3)
        check_infra(retries - 1, expect_shutdown=expect_shutdown, apis=apis, additional_checks=additional_checks)
def start_infra_in_docker():