Build failed. https://zuul.opendev.org/t/openstack/buildset/802dd8b042c3430ab9f82c2311a94a22 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/de762e840f6f4a638476448b8c7b4fe5 : SUCCESS in 3m 00s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/57be6862b65248e9af00a7578c474ffb : SUCCESS in 2m 51s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d8c32460bbfb4094bc7864a3b895b82b : SUCCESS in 3m 20s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e0394b1184654fc6868fc7bdfc8433bd : FAILURE in 2m 30s