Finish the libtest json output experiment

[nikomatsakis]

Metadata
Point of contact	@epage
Team(s)	cargo, libs-api, testing-devex
Goal document	2025h1/libtest-json

Summary

Finish the libtest json experiment.

Tasks and status

• Discussion and moral support (testing-devex, cargo, libs-api )
• Prototype harness (@epage)
• Prototype Cargo reporting support (@epage)
• Write stabilization report (@epage)

[nikomatsakis]

This issue is intended for status updates only.

For general questions or comments, please contact the owner(s) directly.

[epage]

This is on pause until the implementation for #92 is finished. The rustc side of #92 is under review and then some additional r-a and cargo work before implementation is done and its waiting on testing and stabilization.

[epage]

• Key developments:
  • Between tasks on Stabilize cargo-script #92, I've started to refresh myself on the libtest-next code base
• Blockers:
• Help wanted:

[epage]

• Key developments:
  • Continued efforts to clean up the existing code
  • t-testing-devex has been working out where the crates should live in preparation for publishing them (#t-testing-devex > crate ownership @ 💬)
  • Looking to build on the work done for test-r and rustest crates as they align with the long term vision
• Blockers:
• Help wanted: