Feat req: Use tarpaulin with archived tests

[lcmgh]

Hi!

I'm using the great archived test features in order to exec. my tests on a temporary CICD spawned pod in Kubernetes to test against other resources in there.

Two questions:

1. Is there a way to run those archived tests with tarpaulin to gather code coverage?
2. I run my remote tests with ./cargo-nextest nextest run --archive-file /app/test-archive.tar.zst (Cargo not installed). How would I run these tests and gather code coverage with llvm-cov?

Thanks

[sunshowers]

Thanks for the questions!

1. At the moment tarpaulin hasn't been integrated with nextest yet -- see Cargo nextest integration xd009642/tarpaulin#992 for discussion. I believe nextest provides everything tarpaulin needs as machine-readable output, it's just some integration work that needs to be done on their end.
2. Honestly I'm really not sure about this! I think it depends on whether llvm-cov runs without Cargo installed. I'd be interested to hear about what you or others find out.