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.  

"""Handle each request in a separate thread."""
    daemon_threads = True
class ProxyListener(object):
    def forward_request(self, method, path, data, headers):
        """ This interceptor method is called by the proxy when receiving a new request
            (*before* forwarding the request to the backend service). It receives details
            of the incoming request, and returns either of the following results:
            * True if the request should be forwarded to the backend service as-is (default).
            * An integer (e.g., 200) status code to return directly to the client without
              calling the backend service.
            * An instance of requests.models.Response to return directly to the client without
              calling the backend service.
            * An instance of requests.models.Request which represents a new/modified request
              that will be forwarded to the backend service.
            * Any other value, in which case a 503 Bad Gateway is returned to the client
              without calling the backend service.
        """
        return True
    def return_response(self, method, path, data, headers, response):
        """ This interceptor method is called by the proxy when returning a response
            (*after* having forwarded the request and received a response from the backend
            service). It receives details of the incoming request as well as the response
            from the backend service, and returns either of the following results:
            * An instance of requests.models.Response to return to the client instead of the
              actual response returned from the backend service.
            * Any other value, in which case the response from the backend service is
              returned to the client.
        """
        return None
class GenericProxyHandler(BaseHTTPRequestHandler):