Toda vez que eu lanço meu aplicativo, ele não consegue passar dos 60 segundos sem:

<code>2012-05-06T22:41:11+00:00 heroku[web.1]: Stopping process with SIGKILL
2012-05-06T22:41:11+00:00 heroku[web.1]: Error R10 (Boot timeout) -> Web process failed to bind to $PORT within 60 seconds of launch
2012-05-06T22:41:11+00:00 heroku[web.1]: Process exited with status 137
2012-05-06T22:41:12+00:00 heroku[web.1]: State changed from starting to crashed
</code>

Aqui está o meuProcfile:

<code>web: bundle exec thin start -p $PORT
</code>

Qualquer resposta será totalmente apreciada.