docs(metadata): Added build_directory to cargo metadata documentation by ranger-ross · Pull Request #15410 · rust-lang/cargo (original) (raw)

What does this PR try to resolve?

Follow up to #15377 that documents build_directory in the cargo metadata docs.

I did not mention that this feature is not stable yet, let me know if it would be better to a note that this is nightly only.
Not sure how we normally handle documenting non-stable features

cc: #14125