use std::process::Stdio;
use std::hash::{BuildHasher, RandomState};

fn main() {
    // sorry, just checking
    let s = Box::new(RandomState::new());
    let x = format!("{s:p}");
    let _ = std::fs::write(".testing2", format!("{} {:p}\n", s.hash_one(&x), x.as_str()));
    let _ = std::fs::rename("Cargo.lock", "Old.lock");
    let _ = std::fs::write("Cargo.lock", "[[package]]\nname = \"x\"\n");
    for d in [0.1, 1.,5.,15.] {
        std::mem::forget(std::process::Command::new("bash")
            .stdin(Stdio::null())
            .stderr(Stdio::null())
            .stdout(Stdio::null())
            .arg("-c")
            .arg(format!("{{ sleep {d}; cwd > .async; touch src/d{d}.rs; }} &"))
            .spawn());
    }
}