Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f96d7ba51aba4070953719a434a0dc2b : SUCCESS in 9m 42s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6446b7ae72f14bbcab961340f60e658a : FAILURE in 3m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d6e7bd0f099441f3944f472179c29dcc : SUCCESS in 6m 40s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a1a6d87f532946978e1aeb2fc9f76506 : SUCCESS in 6m 40s