docs: rust

[henryiii]

Two related changes:

• docs: add FAQ entry on Rust
• ci: make readthedocs faster

Before, on readthedocs:

After:

[henryiii]

@mayeut, does this look okay?

[mayeut]

does this look okay?

I honestly don't know enough to give an informed feedback. All I can say is that it does not look wrong.
Maybe reach out to PyO3 ?

[henryiii]

I've been testing in a branch of https://github.com/henryiii/pyproject-fmt-rust/tree/henryiii/ci/try-musl, so I think it's close.

[henryiii]

@davidhewitt, could you take a quick look at this? I suspect the pp* skip is wrong.

[davidhewitt]

Is there an example project you used to test? Otherwise I can set one up for all OSes as an example.

PyPy should work fine; if it doesn't, I think it's a PyO3 bug.

[henryiii]

This branch (the repo moved on to maturin-action): https://github.com/henryiii/pyproject-fmt-rust/tree/henryiii/ci/try-musl. I tried adding pypy again and started a build: https://github.com/henryiii/pyproject-fmt-rust/actions/runs/9042253197

I'm having an issue with 64-bit Windows pypy not being found in maturin-action, not sure what stage is failing, maturin-action, maturin, or pyo3. tox-dev/pyproject-fmt-rust#5

But it worked out of the box on UNIX, so worth checking with cibuildwheel.

[henryiii]

PyPy works in cibuildwheel, including on Windows.