How to deny warnings?

[mightyiam]

I have something like this:

      nci.projects.default = {
        path = ./.;
        useClippy = true;
        drvConfig.env.RUSTFLAGS = "--deny warnings";
      };

And I artificially introduced a clippy warning. If I run RUSTFLAGS="--deny warnings" cargo clippy I can see the warning denied and the command fails.

But nix flake check succeeds.

Am I using the wrong option? Is RUSTFLAGS overridden? Is clippy not running? 🤷

[yusdacra]

useClippy wasn't working properly, i removed it in favour of a similar option to checkProfile (#176)

[mightyiam]

        drvConfig.env.RUSTFLAGS = "--deny warnings";

Works now! Thank you, @yusdacra!