While cibuildwheel can build CPython 3.8 universal2/arm64 wheels, we cannot test the arm64 part of them, even when running on an Apple Silicon machine. This is because we use the x86_64 installer of CPython 3.8. See the discussion in https://github.com/pypa/cibuildwheel/pull/1169 for the details. To silence this warning, set `CIBW_TEST_SKIP: "cp38-macosx_*:arm64"`.

Cache not found for keys: ccache-build-macos-14-*macosx*-

The workflow was run with the 'attestations: true' input, but an explicit password was also set, disabling Trusted Publishing. As a result, the attestations input is ignored.

Trusted Publishers allows publishing packages to PyPI from automated environments like GitHub Actions without needing to use username/password combinations or API tokens to authenticate with PyPI. Read more: https://docs.pypi.org/trusted-publishers

A new Trusted Publisher for the currently running publishing workflow can be created by accessing the following link(s) while logged-in as an owner of the package(s):