Ethan Williams

Mergeable rustdoc cross-crate info

26

This RFC is to enable [merging](https://rust-lang.zulipchat.com/#narrow/stream/266220-t-rustdoc/topic/.22linking.22.20separate.20rustdoc.20outputs/near/434858884) cross-crate information (like the search index, index.html, source files index) from separate output directories, so that rustdoc can run in parallel in non-cargo build...