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

emily: could you try with the changes in this PR: https://github.com/NixOS/nixpkgs/pull/400865

(while testing if you only build cargoDeps.vendorStaging you won't have many rebuilds)