Summary: Following some advice to add debugging steps from here: https://github.com/skx/github-action-publish-binaries/issues/19 Also adding an alternative upload action as the issue clearly stems from something specific to the cURL version on the Action host. This uses a completely different tool (ghr) for uploading. Pull Request resolved: https://github.com/facebook/flipper/pull/1199 Test Plan: testinprod Reviewed By: jknoxville Differential Revision: D21723887 Pulled By: passy fbshipit-source-id: cbbc9555283a89e3152c602b87d64976e8dbf4f9