Build failed. https://zuul.opendev.org/t/openstack/buildset/2c4490d17e324d24801f56e903d0cb10 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5c2220577a684c4785c4c17b40b520a9 : SUCCESS in 3m 49s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8803f09c0d264dfd9f9b74d893ac5891 : SUCCESS in 5m 29s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c8f6eaf9e1f94bd7b3306cf7d8dc73d9 : SUCCESS in 6m 01s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3d16972691b441eaa2d49f3c4afe140b : FAILURE in 4m 47s