TST: troubleshoot inconsistent xfails
Thanks for taking a look at these - great to get these working again. Took a quick look at a couple builds and noticed they weren't always the same failures. Could split this up into a few PRs if easier to troubleshoot Hello @jbrockmendel! Thanks for updating this PR. We checked the lines you've touched for [PEP 8](https://www.python.org/dev/peps/pep-0008) issues, and found:































There are currently no PEP 8 issues detected in this Pull Request. Cheers! :beers: 

##### Comment last updated at 2019-08-02 23:33:25 UTC black and flake8 are OK with this diff, pep8speaks must have its own config or a version mismatch? @WillAyd can I get a "booyah"? booyah it is any reason we shouldn't do this for 0.25.1? > any reason we shouldn't do this for 0.25.1?

Not that I'm aware of thanks @jbrockmendel 