Build failed. https://zuul.opendev.org/t/openstack/buildset/90f71df0cb764801827153f970f0b2d7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/702a09114d9448b997d9abf7478ecee1 : FAILURE in 2m 59s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a918c86de8f34abdb9a39bc85373a214 : SUCCESS in 2m 49s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f55340e54b3945258572f8c809e45c93 : SUCCESS in 3m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/429d90166d934c5dbc008f738f60dc57 : SUCCESS in 3m 19s