combing with nextest

[TyberiusPrime]

Hi,

I'd like to replace 'cargo test' with 'cargo nextest'.

Unfortunately, when I set cargoTestCommands: old: [''cargo $cargo_options nexttest $cargo_test_options'',
(and add a failing test case for visibility) and set mode = "test", it will first run 'cargo test' in the buildPhase,
before even getting to the checkPhase.

I got it running just my nextest with

        nativeBuildInputs = with pkgs; [cargo-nextest];
        cargoTestCommands = old: ["cargo nextest run $cargo_test_options"];
        override = {
          buildPhase = ":";
        };
        doCheck = true;

But it wasn't quite obvious, so I'm dropping this issue for the next person to find.