old_contents: module.exports = {
    execute: function (config) {
      return new Promise((resolve, reject) => {
        console.log('Stopping backstop remote.');
        process.exit(0);
      });
    }
  };
  
new_contents: module.exports = {
    execute: function (config) {
      return new Promise((resolve, reject) => {
        resolve(0);
        setTimeout(function () {
  	      console.log('Stopping backstop remote.');
  	      process.exit(0);
        }, 0);
      });
    }
  };
  
subject: fix backstop remote stop path