So this is what I'm using in my flake:

          rustPackage =
            package: features:
            (pkgs.makeRustPlatform {
              cargo = pkgs.rust-bin.stable.latest.minimal;
              rustc = pkgs.rust-bin.stable.latest.minimal;
            }).buildRustPackage
              {
                inherit (cargoToml.package) name version;
                src = ./.;
                cargoLock.lockFile = ./Cargo.lock;
                buildFeatures = features;
                buildInputs = rustBuildInputs;
                nativeBuildInputs = [ rustToolchain ];
                cargoInstallFlags = [
                  "--package"
                  package
                ];
              };

I want to run cargo build --package dioxus-cli --features no-downloads specifically. Then copy the bin to the right location for future use, but first I just want to get it building.

Hi,
I have some trouble building rerun:

Web viewer .wasm built in 279.5s

Generating JS bindings for wasm…
Error: Failed to run wasm-bindgen: cannot import from modules (`env`) with `--no-modules`. This is often because some dependency is calling `std::time::Instant::now()` or similar. You can try diagnosing this with:
wasm2wat /build/source/target_wasm/wasm32-unknown-unknown/web-release/re_viewer.wasm | rg '"env"'
wasm2wat /build/source/target_wasm/wasm32-unknown-unknown/web-release/re_viewer.wasm | rg 'call .now\b' -B 20

You can also try https://rustwasm.github.io/twiggy/usage/command-line-interface/paths.html#twiggy-paths

Any idea?

I have a cmake project that is also a cargo workspace. So there is a top-level Cargo.lock and multiple Cargo.toml files. How do I build? I'm using:

cargoDeps = rustPlatform.importCargoLock {
    lockFile = "${src.outPath}/Cargo.lock";
};

but at some point nix still tries to download from crates.io and obviously fails

DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): crates.io:443

and then nothing. fun

$ nix --version
nix (Lix, like Nix) 2.91.3