Rust's WASI Targets Are Changing: Here's Why

Rust 1.78 will introduce new `wasm32-wasip1` (tier 2) and `wasms32- wasip2' (tier 3) targets. Users of WASI 0.1 are encouraged to begin migrating to the new** 'wasm 32-wasi' target. The existing `wASI-unknown-unknown' and 'wASi-unknownemscripten' targets are unaffected by any changes.