I only tried this for a few moments. But my gut-level interpretation is that the chroot is exiting non-zero trying to translate this library. We could either temporarily remove the requests[security] lib or accept this as a temporary blocker until the library releases. https://github.com/requests/requests/blob/master/setup.py#L72 I am done for the evening, but I can sit down for a couple hours and release from an alternate SHA, or after consuming a patch fix of either stripe.