Feature Name: proc_macro_sandbox Start Date: 2023-08-20 Summary Procedural macro crates can opt-in to precompilation to WebAssembly as part of the publish process. The crate compiles locally (as already done by cargo publish) and then is securely verified by a crates.io-managed service, conceptually similar to docs.rs, which enforces that sources in the crate exactly reproduce the Wasm artifact be
![Pre-RFC: Sandboxed, deterministic, reproducible, efficient Wasm compilation of proc macros](https://cdn-ak-scissors.b.st-hatena.com/image/square/71479b5ecc3036c547c378fdc8815840708b4229/height=288;version=1;width=512/https%3A%2F%2Fglobal.discourse-cdn.com%2Fbusiness6%2Fuploads%2Frustlang%2Foriginal%2F2X%2Fb%2Fb71959a2097ce0b5c3a193ce0a6466a42d4c4952.png)