Bypass _TorchScriptTesting_StackString::pop in BC check now (#31586)
Summary:
Failed result: https://circleci.com/gh/pytorch/pytorch/4054919?utm_campaign=vcs-integration-link&utm_medium=referral&utm_source=github-build-link/console
Original PR: https://github.com/pytorch/pytorch/pull/30242
Pull Request resolved: https://github.com/pytorch/pytorch/pull/31586
Reviewed By: hl475
Differential Revision: D19222086
Pulled By: houseroad
fbshipit-source-id: 96db2bf18fa06eaebdd558e86615e26b95f34516
