Build failed. https://zuul.opendev.org/t/openstack/buildset/630ad9e09d224e25a451f9d76e4da2a6 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7fdeae77724845fa8f268d4cb117272d : SUCCESS in 4m 00s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9d3490b90f5448f1859dcab21df8ddd0 : FAILURE in 3m 19s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/550fe185f0924a52b1afc8d11ea089ee : SUCCESS in 4m 21s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/526ef5b7a24c4f0c829b202fe5875481 : SUCCESS in 3m 09s