Build failed. https://zuul.opendev.org/t/openstack/buildset/10c0cdecbd5e4c59b2fd3e9c725b6d09 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/20a1f4caf7cb4ed282281aa872e8b1b9 : SUCCESS in 4m 42s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d071bc9380614c629cfefc8828251cf6 : SUCCESS in 3m 19s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/478192ce608b49b0bda464ce1de937bc : SUCCESS in 3m 05s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/865c35f3485c4ff4aa3406f0f1bc8beb : FAILURE in 2m 27s