Rust chose to build on Futures and async. Author wants to have node style callbacks "I’d like to make a simple function that does some work in the background,

Rust chose to build on Futures and async. Author wants to have node style callbacks "I’d like to make a simple function that does some work in the background, and lets us know when it’s done by running another function with the results of said background work." Author is unhappy with Rust. What I would like to have out of Rust async runtimes is the Go version: Coroutines and moving waiting IO automatically to a thread queue.