Question: Rust Build Infrastructure [LLVM]

I usually build the compiler for macOS. So, I haven't found any prebuilt LLVM binaries recently. Is it ok?

Detected LLVM as non-available: running in CI and modified LLVM in this change

I have checked it for 1 tier x86_64-apple-darwin and other. How can I check available prebuilt LLVM binaries for macOS? I know about https://ci-artifacts.rust-lang.org. But I don't know the keys.

Do we have actual docs about it?