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| 20 Mar 2026 |
 PixelHamster | Hi, I'm trying to package my leptos application using a nix flake.
For our CI it seemed very beneficial to have a separate dependency derivation (as crane recommends).
However when compiling the dependencies on their own with crane's buildDepsOnly I get told it cannot find lld during compile of wasm-streams: | 12:19:07 |
| PixelHamster | 
Download image.png | 12:19:10 |
| PixelHamster | My 2 dependency derivations look something like this at the moment:
cargoArtifacts = craneLib.buildDepsOnly commonArgs;
cargoWasmArtifacts = craneLib.buildDepsOnly (commonArgs // {
# wasm-streams wants lld
buildInputs = [ pkgs.lld ];
cargoExtraArgs = "--target=wasm32-unknown-unknown --no-default-features --features hydrate ";
# Additional environment variables can be set directly
CARGO_PROFILE = "wasm-release";
CARGO_TARGET_DIR = "target/front";
});
| 12:19:38 |
| PixelHamster | I looked at wasm-streams and didn't get where the lld requirement came from, otherwise I'd try to patch the crate | 12:22:13 |
| azban | it looks like lld is missing during the cargo phase not during building wasm. can you try to add this as buildInputs at the top level of your derivation or in cargoArtificacts? hard to tell exactly what's going on only with that snippet of your derivation | 23:50:31 |
| 21 Mar 2026 |
 dish [Fox/It/She] | In reply to @pyrox:pyrox.dev
https://github.com/thepowersgang/mrustc/pull/387 mrustc 1.90 support 👀 got merged, do I make the probably bad decision of trying to make a bootstrap chain from this | 14:21:41 |
| dish [Fox/It/She] | * <mx-reply><blockquote><a href="https://matrix.to/#/!FBuJyWXTGcGtHTPphC:nixos.org/$m5Nz8gWgTwg1zAjDa2xN0G7UQGHyPEjvE5NhUCMeLNU?via=pyrox.dev&via=matrix.org&via=catgirl.cloud">In reply to</a> <a href="https://matrix.to/#/@pyrox:pyrox.dev">@pyrox:pyrox.dev</a><br /><a href="https://github.com/thepowersgang/mrustc/pull/387">https://github.com/thepowersgang/mrustc/pull/387</a> mrustc 1.90 support 👀</blockquote></mx-reply>got merged, do I make the probably bad decision of trying to make a rustc bootstrap chain from this | 14:22:33 |
| dish [Fox/It/She] | ouch, the most recent bootstrap chain from dtolnay(mrustc targetting 1.90 -> 1.94 rustc) apparently requires 310gb of disk space. | 14:27:19 |
