Build failed. https://zuul.opendev.org/t/openstack/buildset/838cc29dc9ef432cb7d2433ba5686230 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/09d71f50d732411d9f3508c42ec75b94 : SUCCESS in 3m 22s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f715c4e3940543b3aa68c9712decc7b5 : FAILURE in 2m 38s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/43f6c87e6b4242b4b815fafd6cc27965 : SUCCESS in 3m 26s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e5307a9ad1424032bcfc1a89bc374d99 : SUCCESS in 3m 10s