code 1 on assert

master.js

'use strict';
// node 12.14.0
// node 14.3.0, 14.4.0, 14.5.0
// node v15.0.0-pre

const assert = require('assert');
const { Worker } = require('worker_threads');

const worker = new Worker('./worker.js');

worker.on('error', err => {
  console.log({ err });
});

worker.on('exit', code => {
  console.dir({ code });
});

// Uncomment to get { code: 0 } on exit
// throw new Error('Workers, peasants, we are...');

// Uncomment to get { code: 1 } on exit
// assert(false);

workar.js

'use strict';

setTimeout(() => {
  console.log('hello');
}, 1000);