TST: 32bit dtype compat #36579
Part of #36579


Hello @fangchenli! 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 2020-09-24 16:57:24 UTC thanks!

do we have a 32-bit build on CI? e.g. where were these failing > thanks!
> 
> do we have a 32-bit build on CI? e.g. where were these failing

The 32-bit build is still work in progress https://github.com/pandas-dev/pandas/pull/35898. It's working but not integrated with our existing setup yet. I also saw those failures on Raspberry Pi.