title: How do I efficiently read in a single line of user input from the console?
body: <p>I recently learned how to read input using <code>io</code> from the Rust documentation, but is there any '<em>simple</em>' method for reading in console input? My roots are heavily dug into C++, so grabbing input from the console is as easy as <code>std::cin &gt;&gt; var</code>. But in Rust I'm doing:</p>
  
  <pre><code>for line in io::stdin().lines() {
      print!("{}", line.unwrap());
      break;
  }
  </code></pre>
  
  <p>This reads input once, but the for loop seems like a really clumsy way to accomplish this. How can I easily do this?</p>