Build failed. https://zuul.opendev.org/t/openstack/buildset/ba27690e80e34621a9e5c2d09a8f1b86 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/58f195a222ce48ee8a0423ee6bb0b82d : SUCCESS in 3m 31s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/3d17afae58e04c99b2a3b4fc01b6c55f : FAILURE in 3m 32s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/aa3f92debc664ae790c8b2e95b297a82 : SUCCESS in 3m 26s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4d9eefd90ca545a4b18f3ca38cbe4ca2 : SUCCESS in 3m 46s