Example do not work

[twodayslate]

For example if I run

'use strict';
const {Docker} = require('node-docker-api');

const promisifyStream = stream => new Promise((resolve, reject) => {
  stream.on('data', data => console.log(data.toString()))
  stream.on('end', resolve)
  stream.on('error', reject)
});

const docker = new Docker({ socketPath: '/var/run/docker.sock' });
let _container;

docker.container.create({
  Image: 'ubuntu',
  Cmd: [ '/bin/bash', '-c', 'tail -f /var/log/dmesg' ],
  name: 'test'
})
  .then(container => container.start())
  .then(container => {
    _container = container
    return container.exec.create({
      AttachStdout: true,
      AttachStderr: true,
      Cmd: [ 'echo', 'test' ]
    })
  })
  .then(exec => {
    return exec.start({ Detach: false })
  })
  .then(stream => promisifyStream(stream))
  .then(() => _container.kill())
  .catch(error => console.log(error));

I get the following:

% uname -a
Darwin ME 19.3.0 Darwin Kernel Version 19.3.0: Thu Jan  9 20:58:23 PST 2020; root:xnu-6153.81.5~1/RELEASE_X86_64 x86_64
% node --version
v12.8.0
% node test.js
)cannot exec in a stopped state: unknown

[EgorBochkarev]

the same