async operation in loop on async cursor (for await)

read-schedule.js

const readline = require('readline');
const fs = require('fs');

const sleep = ms => {
    return new Promise(resolve => setTimeout(resolve, ms))
}

(async () => {
    var lineReader = readline.createInterface({
        input: fs.createReadStream(`${__dirname}/schedule.txt`),
        crlfDelay: Infinity
    });

    for await (const week of lineReader) {
        const lower = 500;
        const upper = 1000;
        const sleepTime = lower + Math.floor(Math.random() * (upper - lower + 1));


        await sleep(sleepTime);
        console.log(`[!] ${week}`);
    }
})();

schedule.txt

1:05pm	Sep 8	Home	Seattle Seahawks vs Cincinnati Bengals	Seattle, Washington	CBS
10am	Sep 15	Away	Seattle Seahawks at Pittsburgh Steelers	Pittsburgh, Pennsylvania	Q13 FOX
1:25pm	Sep 22	Home	Seattle Seahawks vs New Orleans Saints	Seattle, Washington	CBS
1:05pm	Sep 29	Away	Seattle Seahawks at Arizona Cardinals	Glendale, Arizona	Q13 FOX
5:20pm	Oct 3	Home	Seattle Seahawks vs Los Angeles Rams	Seattle, Washington	FOX, NFL Network, Amazon Prime
10am	Oct 13	Away	Seattle Seahawks at Cleveland Browns	Cleveland, Ohio	Q13 FOX
1:25pm	Oct 20	Home	Seattle Seahawks vs Baltimore Ravens	Seattle, Washington	Q13 FOX
10am	Oct 27	Away	Seattle Seahawks at Atlanta Falcons	Atlanta, Georgia	Q13 FOX
1:05pm	Nov 3	Home	Seattle Seahawks vs Tampa Bay Buccaneers	Seattle, Washington	Q13 FOX
5:15pm	Nov 11	Away	Seattle Seahawks at San Francisco 49ers	Santa Clara, California	ESPN
5:20pm	Nov 24	Away	Seattle Seahawks at Philadelphia Eagles	Philadelphia, Pennsylvania	NBC
5:15pm	Dec 2	Home	Seattle Seahawks vs Minnesota Vikings	Seattle, Washington	ESPN
5:20pm	Dec 8	Away	Seattle Seahawks at Los Angeles Rams	Los Angeles, California	NBC
10am	Dec 15	Away	Seattle Seahawks at Carolina Panthers	Charlotte, North Carolina	Q13 FOX
1:25pm	Dec 22	Home	Seattle Seahawks vs Arizona Cardinals	Seattle, Washington	Q13 FOX
1:25pm	Dec 29	Home	Seattle Seahawks vs San Francisco 49ers	Seattle, Washington	Q13 FOX