Rust Cross Compilation

Rust–by virtue of being a LLVM based compiler–obtains most of the necessary infrastructure to be multiple target aware out of the box. However building rust in CI (especially in a nix based CI) can lead to compliations. This is very visible when trying to cross compile to Windows.

We’ve adopted an existing cargo wrapper for nix called naersk, and extended it to cover cross compilation and subsequently trivial integration of rust libraries into haskell applications. The code can be found in rust.nix.