16:14:21 + docker pull dockerbuildbot/docker-py:py3-6010527ac6949dedcc1c896aa0c71e4bdf7c2493 16:14:21 Error response from daemon: manifest for dockerbuildbot/docker-py:py3-6010527ac6949dedcc1c896aa0c71e4bdf7c2493 not found: manifest unknown: manifest unknown