Untitled

import std.stdio;
import core.thread;
import core.time;

auto arr = new ubyte[1]; // THIS SHOULD NOT COMPILE

int main(string[] args)
{
    new Thread({
        arr[0]++;
    }).start();

    new Thread({
        arr[0]++;
    }).start();
    
    Thread.sleep(1.seconds);
    writefln("arr[0] = %s", arr[0]);
    return 0;
}

D

INFO