U2模式连接不了

 HTTPSConnectionPool(host='raw.githubusercontent.com', port=443): Max retries exceeded with url: /openatx/stf-binaries/0.3.0/node_modules/%40devicefarmer/minitouch-prebuilt/prebuilt/arm64-v8a/bin/minitouch (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x0478FA70>: Failed to establish a new connection: [Errno 11004] getaddrinfo failed'))