title: Docker tries to mkdir the folder that I mount
body: <p>Why is Docker trying to create the folder that I'm mounting? If I cd to C:\Users\szx\Projects</p>
  
  <pre><code>docker run --rm -it -v "${PWD}:/src" ubuntu /bin/bash
  </code></pre>
  
  <p>This command exits with the following error:</p>
  
  <pre><code>C:\Program Files\Docker Toolbox\docker.exe: Error response from daemon: error while creating mount source path '/c/Users/szx/Projects': mkdir /c/Users/szx/Projects: file exists.
  </code></pre>
  
  <p>I'm using Docker Toolbox on Windows 10 Home.</p>