Sometime in the last 48 hours we've started having HTTPS problems downloading third party tarballs from GitHub in some of our builds. Here's a build 2 days ago that passed:
https://travis-ci.org/apache/arrow/builds/282102028 Here's an example of a failing build: https://travis-ci.org/wesm/arrow/jobs/282719318 CMake Error at googletest_ep-stamp/download-googletest_ep.cmake:21 (message): error: downloading 'https://github.com/google/googletest/archive/release-1.8.0.tar.gz' failed status_code: 1 status_string: "Unsupported protocol" log: Protocol "https" not supported or disabled in libcurl Closing connection -1 It does not seem that any of the likely culprits of this failure have changed (cmake, libcurl, openssl) Also, Appveyor is not notifying our PRs in GitHub anymore, but the builds are triggering and passing: https://ci.appveyor.com/project/ApacheSoftwareFoundation/arrow/history I'm not sure what's going on yet, but I am going to investigate this morning and see if I can figure it out. If anyone has ideas please pass them on - Wes
