22:47:36 + docker pull dockerbuildbot/docker-py:py2-d3674bfdbd7d996aab2f50336a7a65a77aa1a14e 22:47:36 Error response from daemon: manifest for dockerbuildbot/docker-py:py2-d3674bfdbd7d996aab2f50336a7a65a77aa1a14e not found: manifest unknown: manifest unknown