Build failed. https://zuul.opendev.org/t/openstack/buildset/8dd230142eab4f34a98cdf83351ede4d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/95f4b158d95145b1957a934ad9268cd3 : SUCCESS in 3m 42s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/647f481e12464af2a887279f194b942f : SUCCESS in 4m 59s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7c6819e007604314996524fc2d31fff0 : SUCCESS in 3m 58s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/bb6f0d6fa1b94af9a29c3c25bfc5549e : FAILURE in 4m 01s