> instead of embedding Rust-DSL into Haskell, authors of Rust preferred to implement Rust in OCaml why? and how much does it matter, if the goal is to have a c

> instead of embedding Rust-DSL into Haskell, authors of Rust preferred to implement Rust in OCaml why? and how much does it matter, if the goal is to have a compiler/interpreter? (as I assume is the case with Dada, and was with Rust)