Build failed. https://zuul.opendev.org/t/openstack/buildset/ed3bc800026c499e85f55c35c0d69f79 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ad8f17bbe3f94c7da289c99afe1032b0 : SUCCESS in 4m 43s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bee68d23d9294528b48e15e1f87c02c4 : FAILURE in 3m 35s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8112e688d8c94b6496f771ab5fd2ea6f : SUCCESS in 4m 27s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3c2d1634e3bc44d9a3e4762d9b30ef4e : SUCCESS in 4m 27s