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.method = requests.patch
        self.read_content()
        self.forward('PATCH')
    def do_OPTIONS(self):
        self.data_bytes = None
        self.method = requests.options
        self.forward('OPTIONS')
    def read_content(self):
        content_length = self.headers.get('Content-Length')
        if content_length:
            self.data_bytes = self.rfile.read(int(content_length))
        else:
            self.data_bytes = None
            if self.method in (requests.post, requests.put):
                
                
                socket_timeout_secs = 0.5
                self.request.settimeout(socket_timeout_secs)
                while True:
                    try:
                        
                        tmp = self.rfile.read(1)
                        if self.data_bytes is None:
                            self.data_bytes = tmp
                        else:
                            self.data_bytes += tmp
                    except socket.timeout:
                        break
    def build_x_forwarded_for(self, headers):