title: Puma stuck with message "Early termination of worker" on Rails 6 API only project at Elastic Beanstalk
body: <p>I have a Rails 6 api-only application which I am failed to run at AWS Elastic Beanstalk. After deployment of that application, puma stucks with message "Early termination of worker". I don't have any custom configurations nor settings for that project. Simply created an environment and uploaded archived zip file.</p>
  
  <p>After I kill puma processes with command <code>pkill -9 -f puma</code> my puma.log file looks like below:</p>
  
  <pre><code>=== puma startup: 2020-01-22 13:17:45 +0000 ===
  === puma startup: 2020-01-22 13:17:45 +0000 ===
  [28858] Early termination of worker
  [28856] Early termination of worker
  [28862] Early termination of worker
  [28865] Early termination of worker
  [28869] Early termination of worker
  </code></pre>
  
  <p>I searched that error and found nothing for solve.</p>
  
  <ul>
  <li>Ruby version: 2.6.5</li>
  <li>Puma version 4.3.1</li>
  <li>Rails version: 6.0.2.1</li>
  </ul>
  
  <p>I am using Puma with Ruby 2.6 running on 64bit Amazon Linux/2.11.2 on AWS.</p>