title: How to find dependency causing "Sirupsen/logrus" vs. "sirupsen/logrus" unexpected module path error?
body: <p>I am trying to convert <a href="https://github.com/appscode/voyager" rel="noreferrer">https://github.com/appscode/voyager</a> from glide to go mod.</p>
  
  <p>I am getting an error like below:</p>
  
  <pre><code>go: github.com/Sirupsen/logrus@v1.4.1: parsing go.mod: unexpected module path "github.com/sirupsen/logrus"
  go: error loading module requirements
  </code></pre>
  
  <p>How do I find out the source of this old Sirupsen module?</p>