Allow running arbitrary cargo commands

[ctron]

Currently you can only configure cargo run and cargo test.

However it would great to run other cargo commands as well.

[mickaelistria]

Which command do you have in mind.
The External Launch Configuration > Program and the Terminal are possible workarounds. I'd like to avoid spending too much effort for commands that are run too rarely to require deep IDE integration (supporting a command means creating a UI for all its possible options, it's actually a big effort in development and maintenance).

[ctron]

I think build, clean, bench, fmt sound like a good start. But you can also install custom commands yourself, which extend cargo.

So I think it might be valuable to have, like for maven, the possibility to simply specify what cargo command should be executed.

[norru]

If you allow enough flexibility, this could simplify the workflow as separate cargo run and cargo test configurations won't be needed as you'd just need one parametric cargo ${op}.