 <tr class=' module-item'>
                           <td><a class="mod" href="base64/index.html"
                                  title='mod rustc_serialize::base64'>base64</a></td>
                           <td class='docblock-short'>
                                <p>Base64 binary-to-text encoding</p>

                           </td>
                       </tr>
                       <tr class=' module-item'>
                           <td><a class="mod" href="hex/index.html"
                       