Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0c35138607b1427d8915c64b23983a2d : SUCCESS in 4m 07s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/22d48b882a804fbc93e64b5507c18159 : FAILURE in 2m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9c7512841e8440a8b2d4fbb81bc819c7 : SUCCESS in 4m 31s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2c85fa45676b4761b49127b30c02c6ff : SUCCESS in 4m 02s