Build failed. https://zuul.opendev.org/t/openstack/buildset/58b3a1cfb63a4737b8d40ab674d1a37d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/aac70aab0191497f8d84146a96d95d0b : SUCCESS in 3m 05s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ac56930703d54ea7a91b3d041e359f8f : SUCCESS in 2m 41s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6ed07c6db63142c2acb75ebb09c643b6 : SUCCESS in 2m 39s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/738ad26d1d2443d2a4602ab36b40b140 : FAILURE in 2m 43s