title: Does Rust support Ruby-like string interpolation?
body: <p>In Ruby I could do this.</p>
  
  <pre><code>aaa = "AAA"
  bbb = "BBB #{aaa}"
  
  puts(bbb)
  
  &gt; "BBB AAA"
  </code></pre>
  
  <p>The point of this syntax is eliminating repetition, and making it to feel like a shell script - great for heavy string manipulation.</p>
  
  <p>Does Rust support this? Or have plan to support this? Or have some feature which can mimic this?</p>