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.  

self.send_header('Access-Control-Allow-Origin', '*')
            if 'Access-Control-Allow-Methods' not in response.headers:
                self.send_header('Access-Control-Allow-Methods', ','.join(CORS_ALLOWED_METHODS))
            if 'Access-Control-Allow-Headers' not in response.headers:
                self.send_header('Access-Control-Allow-Headers', ','.join(CORS_ALLOWED_HEADERS))
            self.end_headers()
            if response.content and len(response.content):
                self.wfile.write(to_bytes(response.content))
            self.wfile.flush()
        except Exception as e:
            trace = str(traceback.format_exc())
            conn_errors = ('ConnectionRefusedError', 'NewConnectionError')
            conn_error = any(e in trace for e in conn_errors)
            error_msg = 'Error forwarding request: %s %s' % (e, trace)
            if 'Broken pipe' in trace:
                LOGGER.warn('Connection prematurely closed by client (broken pipe).')
            elif not self.proxy.quiet or not conn_error:
                LOGGER.error(error_msg)
                if os.environ.get(ENV_INTERNAL_TEST_RUN):
                    
                    
                    
                    print('ERROR: %s' % error_msg)
            self.send_response(502)  
            self.end_headers()
            
            self.close_connection = 1
    def log_message(self, format, *args):
        return
class GenericProxy(FuncThread):