We already refer to test targets as "test targets" instead of "tests" in
`--test` but not `--tests` or in the error output. This makes it
uniformly refer to them as "test targets", making it clearer that these
aren't test functions.
Fixes#7864
It confuses people that both `--no-fail-fast` and `--keep-going` exist
on `cargo test` and `cargo bench` but with slightly different behavior.
The intended use cases for `--keep-going` involve build commands like
`build`/`check`/`clippy` but never `test`/`bench`.
Hence, this commit removes `--keep-going` from `test`/`bench` and
provides guidance of `--no-fail-fast` instead.
If people really want to build as many tests as possible, they can also
do it in two steps:
cargo build --tests --keep-going
cargo test --test --no-fail-fast
This mirrors some of the categories from `cargo help` (the man pages).
There are fewer categories to avoid extra vertical space. Instead, they
are left int the `Options` category but put first.
Per my proposal here: https://github.com/rust-lang/cargo/issues/6669#issuecomment-1658593167
I tried to keep the edit minimalistic to match the surrounding style.
If the maintainers are amenable to it, I think it could also be useful to do one or more of:
- Offer concrete guidance on what to do to run actually-all tests (`--all-targets` then separately `--doc`).
- Link to the issue at: https://github.com/rust-lang/cargo/issues/6669
- Mention that `cargo test` without `--all-targets` runs doctests by default, which seems not immediately obvious.
I'd be happy to attempt to add any of the above that the maintainers feel would be a good fit here.
