Build failed. https://zuul.opendev.org/t/openstack/buildset/7314cee7b383469ba12f47aa8a6cf148 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/64a3eb7e70a945e3a248cc7c39392cec : SUCCESS in 4m 58s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/45111ce3883d4cd78589cb1de1d1675d : SUCCESS in 3m 38s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f0e8713afede4cfbbad2dcef045e83ec : SUCCESS in 4m 47s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/730462f01e274d809422a5cc1e749008 : FAILURE in 4m 17s