Build failed. https://zuul.opendev.org/t/openstack/buildset/de9eb7ada7054202b1c0e1e585a1c905 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/85136efbb42142df8d0fd3cff9a252a7 : FAILURE in 6m 38s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/da615657048e4f1da80edbac90960ee2 : SUCCESS in 6m 30s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/42ae1631daca4683a7672f8498e0b86f : SUCCESS in 6m 48s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3e9218d81f1f4a5cbd167cf394843fb6 : SUCCESS in 6m 12s