Example build failures link [here](https://dev.azure.com/pandas-dev/pandas/_build/results?buildId=24934&view=logs&j=3a03f79d-0b41-5610-1aa4-b4a014d0bc70&t=fe74a338-551b-5fbb-553d-25f48b1836e8) and on master: https://dev.azure.com/pandas-dev/pandas/_build/results?buildId=24897&view=logs&j=3a03f79d-0b41-5610-1aa4-b4a014d0bc70&t=fe74a338-551b-5fbb-553d-25f48b1836e8 Believe the error is: 
