The hosted runner: GitHub Actions 6 lost communication with the server. Anything in your workflow that terminates the runner process, starves it for CPU/Memory, or blocks its network access can cause this error.

While universal2 wheels can be built on x86_64, the arm64 part of them cannot currently be tested. The ability to test the arm64 part of a universal2 wheel will be added in a future release of cibuildwheel, once Apple Silicon CI runners are widely available. To silence this warning, set `CIBW_TEST_SKIP: *-macosx_universal2:arm64`.

While universal2 wheels can be built on x86_64, the arm64 part of them cannot currently be tested. The ability to test the arm64 part of a universal2 wheel will be added in a future release of cibuildwheel, once Apple Silicon CI runners are widely available. To silence this warning, set `CIBW_TEST_SKIP: *-macosx_universal2:arm64`.

While universal2 wheels can be built on x86_64, the arm64 part of them cannot currently be tested. The ability to test the arm64 part of a universal2 wheel will be added in a future release of cibuildwheel, once Apple Silicon CI runners are widely available. To silence this warning, set `CIBW_TEST_SKIP: *-macosx_universal2:arm64`.

While universal2 wheels can be built on x86_64, the arm64 part of them cannot currently be tested. The ability to test the arm64 part of a universal2 wheel will be added in a future release of cibuildwheel, once Apple Silicon CI runners are widely available. To silence this warning, set `CIBW_TEST_SKIP: *-macosx_universal2:arm64`.