Build failed. https://zuul.opendev.org/t/openstack/buildset/c2895695a82e4c66ba75e26c7bd298c5 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/61ba98287f4a44588a9e9d0608b4dd64 : FAILURE in 5m 29s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4adc58a47c2c4268ab7820a7015aa0ba : SUCCESS in 4m 42s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/82d1765cbb3f4fa293b771b34c8ecc7f : SUCCESS in 5m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/593e7143d4f2493daba1cefaf8406b59 : SUCCESS in 6m 14s