Relationship with `rules_rust`

[mgeisler]

Hi, I stumbled upon this project via a video and wonder what the long-term goal is in relation to rules_rust?

The video gave me the impression that this is a reimplemention of one corner of rules_rust, namely the Cargo slicing bit. It sounds like it was a near drop-in replacement. Does this imply that it could be contributed back?

Put differently, is this a prototype of a faster approach (which will eventually go away after proving itself) or is a project that is expected to stick around?

Adding a paragraph or two about this in the README would be wonderful.

Thanks for all the effort, I look forward to trying it out after fully migrating to Bazel.