This it seems that this started happening a bit after LLVM 19.1.3 was released. Failures look like this:

https://github.com/python/cpython/actions/runs/11686618553/job/32543252335#step:6:1233

For some reason, assert.h can't be found. So it appears that something about the LLVM install is broken.

For now, we'll start by skipping the jobs.

Linked PRs

• GH-126464: Temporarily disable aarch64-apple-darwin JIT CI jobs #126465
• gh-126464 Fix jit build on aarch64 macos #126494