Build failed. https://zuul.opendev.org/t/openstack/buildset/29cf9fda6fd94e95a557d6dd4c16ea8a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d4c10c4dbd5a4b1fb90b2062cddf32ab : FAILURE in 5m 31s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ec288fb8e07d4bc2a6308a3380b65170 : SUCCESS in 6m 59s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/40a88a3dab6c4754a957407c625b5681 : SUCCESS in 5m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/99935be9793145c4b86bad120e3e599e : SUCCESS in 7m 37s