What? No. Rust has some influence from Haskell in terms of traits and such, but Rust's parallelization capabilities comes from its tracking of mutability. (No, Haskell did not invent caring about mutability.)
Also, succinct expression of parallel algorithms isn't a particularly unique feature. Like half of the named algorithms in the C++ standard library can be parallelized by adding a single parameter.
That’s because the parallelization in the STL is encapsulated. In Haskell and Rust it’s explicit, it’s not just about adding a parameter to an existing function, it’s a general mechanism.
Also, succinct expression of parallel algorithms isn't a particularly unique feature. Like half of the named algorithms in the C++ standard library can be parallelized by adding a single parameter.