Input on a json schema for bench reporting

[epage]

In a theoretical future where test/bench binaries are encouraged to report back results to cargo as json which then formats and reports them, what would callper see as needed for the json schema?

I've been considering how we can improve testing in Rust and one area I've found is the limited contract between cargo and test harnesses is a source of friction. I'm also hoping that this lens for looking at json reporting can help get the schema stabilized.

For reference, this is the current schema for benches.