Maybe not Haskell, but a lot of ideas from Haskell and Haskell-like languages such as typeclasses, Option types, type inference, etc. have found their way to Rust, and it makes programming in Rust an absolute pleasure.

Rust, I'd argue, is the correct choice for many OSS projects. In fact, for security-focused projects, it should be the only choice. C-like performance without C-like vulnerabilities? It makes no sense to choose C or C++ any more.