The absence of async IO in the standard library in Rust 1.0 is probably an artefact of Rust's original intention to use M:N green threads and blocking IO based

The absence of async IO in the standard library in Rust 1.0 is probably an artefact of Rust's original intention to use M:N green threads and blocking IO based on libuv: https://www.reddit.com/r/rust/comments/1v2ptr/is_nonblocking_io_possible_in_rust/ https://www.reddit.com/r/rust/comments/1v2ptr/is_nonblocking... The timing of the move away from green threads didn't really offer enough time to implement a stable async IO option before 1.0