Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/75ae99f02bcb4357b86e73d72ed7f947 : SUCCESS in 5m 20s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9a2eb6aeb19c41f8a30d8139f6de800f : FAILURE in 3m 51s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c3b86b8006814226b6b65961288a61f1 : SUCCESS in 4m 30s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7f31fd1b65024ada8d7dfc887654f629 : SUCCESS in 5m 15s