JS async problem

const child_process = require("child_process");

async function Func(i){

    var r = '';
    var summ = 1;
    for(var i=0;i<10000000;i++) summ+=i;

    await console.log('Func ' + i + ': ' + r);

    return r;
};

function Broker(i){
    Func(i).then(function(){
        console.log('Broker')
    });

    return true;
}

async function Start(){
    var i = 0;
    do{

        await Broker(i)

        console.log('outside: ' + i++);
        if (i>5) break;
    }while(true)
}

Start();