Test Option --last-failed-only

[Nokel81]

Describe the problem you are trying to solve
I have a very large test suite that does quite a but of file IO, which makes the tests rather long to run. I need the file IO because I use external programs to verify my output. It would be very useful to be able to only run the tests that failed the last time I ran the suit.

Describe the solution you'd like
A new option (namely something like --last-failed-only) that would limit which tests are run.

[weihanglo]

We could definitely rerun a single test suite if there is any test case failed in a test suite. However, if we want to rerun only one failed test function annotated with #[test], it is not currently supported (1.69). Unless we get libest JSON format stabilized (rust-lang/rust#49359), there is no enough information for Cargo to rerun a single #[test] function.

Marked this as S-blocked-external Status: ❌ blocked on something out of the direct control of the Cargo project, e.g., upstream fix accordingly.

[weihanglo]

Close in favor of #10673. More discussions happen there.