Build failed. https://zuul.opendev.org/t/openstack/buildset/8625784079b44969bf3453a3326ea07b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0537fcd9df124b9380f589e86944dca7 : SUCCESS in 2m 42s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/3a35a893e2ac4a3ab11bcdf29b336593 : FAILURE in 2m 56s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7ad234e470b24a74ae6211f500499b4c : SUCCESS in 4m 49s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/36c6fe2b8d134a4595c0d2f6fc9a2035 : FAILURE in 2m 57s