The top ten worse files in 8.5.b3 are
['sage -t --long src/sage/combinat/finite_state_machine.py # 31 doctests failed',
'sage -t --long src/sage/schemes/riemann_surfaces/riemann_surface.py # 36 doctests failed',
'sage -t --long src/sage/numerical/mip.pyx # 47 doctests failed',
'sage -t --long src/doc/en/thematic_tutorials/sandpile.rst # 49 doctests failed',
'sage -t --long src/sage/rings/function_field/ideal.py # 56 doctests failed',
'sage -t --long src/sage/graphs/graph.py # 58 doctests failed',
'sage -t --long src/sage/graphs/connectivity.pyx # 59 doctests failed',
'sage -t --long src/sage/rings/tate_algebra_element.pyx # 63 doctests failed',
'sage -t --long src/sage/misc/explain_pickle.py # 70 doctests failed',
'sage -t --long src/sage/graphs/generic_graph.py # 115 doctests failed']
