Function run_server 

pub fn run_server<R: Reporter>(
    threads: usize,
    control: &RunControl,
    reporter: &R,
) -> Result<Stats>

Run the server peer to completion, reading the protocol from stdin and writing it to stdout. Diagnostics must go to stderr (never stdout, which is the wire).

Errors

Returns a handshake, protocol, walk, or I/O error.