http://gentle-wildwood-7307.herokuapp.com/部署到Heroku错误。给予日志
应用程序从部署C9（MySQL数据库，不想制作PostgreSQL），这里是我的日志。不确定问题是什么。
4.236.208.24" DYNO =连接=服务=状态= 503个字节= 2014-11-16T17：41：31.091593 + 00：00的Heroku [路由器]：在=错误代码= H10 DESC =“应用crashed“method = GET path =”/ favicon.ico“host = gentle-wildwood-7307.herokuapp.com request_id = cc817f43-c067-47f5-b488-0e96f5207c2c fwd =”64.236.208.24“dyno = connect = service = status = 503 bytes = 2014-11-16T17：41：31.891130 + 00：00 heroku [router]：at = error code = H10 desc =“App crashed”method = GET path =“/”host = gentle-wildwood-7307。 herokuapp.com request_id = 1943dc6d-721a-4761-a393-52b4816ef387 fwd =“64.236.208.24”dyno = connect = service = status = 503 bytes = 2014-11-16T17：41：32.045544 + 00：00 heroku [router] ：at = error code = H10 desc =“App crashed”method = GET path =“/ favicon.ico”host = gentle-wildwood-7307.her okuapp.com request_id = 963024c6-60e0-4540-896b-5de8d09c081b fwd =“64.236.208.24”dyno = connect = service = status = 503 bytes = 2014-11-16T17：41：32.351885 + 00：00 heroku [router] ：at = error code = H10 desc =“App crashed”method = GET path =“/”host = gentle-wildwood-7307.herokuapp.com request_id = d594a1d8-379d-4d95-a54d-48eca9788237 fwd =“64.236.208.24” dyno = connect = service = status = 503 bytes = 2014-11-16T17：41：32.531014 + 00：00 heroku [router]：at = error code = H10 desc =“App crashed”method = GET path =“/ favicon .ico“host = gentle-wildwood-7307.herokuapp.com request_id = 848521cb-af78-4884-af8e-a62bf1624bab fwd =”64.236.208.24“dyno = connect = service = status = 503 bytes = 2014-11-16T17： 43：44.753508 + 00：00 heroku [router]：at = error code = H10 desc =“App crashed”method = GET path =“/”host = gentle-wildwood-7307.herokuapp.com request_id = ab2215ad-aad7-479e -a9d5-a0db08791950 fwd =“64.236.208.24”dyno = connect = service = status = 503 bytes = 2014-11-16T17：43：44.910248 + 00：00 heroku [router]：at = error code = H10 desc =“App crashed”method = GET path =“/ favicon.ico”host = gentle-wildwood-7307。 herokuapp.com request_id = 79216544-8c50-4561-839a-be2cbb234a77 fwd =“64.236.208.24”dyno = connect = service = status = 503 bytes = 2014-11-16T17：44：12 + 00：00 heroku [slug-编译]：Slug编译开始 2014-11-16T17：44：20 + 00：00 heroku [slug-compiler]：Slug编译失败：无法编译Ruby应用程序 2014-11-16T17：45：54.324695 + 00：00 heroku [router]：at = error code = H10 desc =“App crashed”method = GET path =“/”host = gentle-wildwood-7307.herokuapp.com request_id = 6f5c17fd-5c75-482e-851e-b0e18291eb6d fwd =“ 64.236.208.24“dyno = connect = service = status = 503 bytes = 2014-11-16T17：45：54.609157 + 00：00 heroku [router]：at = error code = H10 desc =”App crashed“method = GET path =“/ favicon.ico”host = gentle-wildwood-7307.her okuapp.com request_id = 312743fb-a8a1-4d72-8ab6-d91a28cd3f27 fwd =“64.236.208.24”dyno = connect = service = status = 503 bytes = 2014-11-16T17：45：55.378930 + 00：00 heroku [router] ：at = error code = H10 desc =“App crashed”method = GET path =“/”host = gentle-wildwood-7307.herokuapp.com request_id = 24822512-b401-4281-9aa4-d7d0de596f22 fwd =“64.236.208.24” dyno = connect = service = status = 503 bytes = 2014-11-16T17：45：55.720652 + 00：00 heroku [router]：at = error code = H10 desc =“App crashed”method = GET path =“/ favicon .ico“主机= gentle-wildwood-7307.herokuapp.com request_id = cc8e0da3-ccf9-4389-9b2d-7ccf1bdc7e85 fwd =”64.236.208.24“dyno = connect = service = status = 503 bytes = 2014-11-16T17： 46：26.595187 + 00：00 heroku [api]：使用命令
bundle exec rake db:migrate开始处理由[email protected] 2014-11-16T17：46：30.757912 + 00：00 heroku [run.5329]：等待客户端 2014-11-16T17：46：30.806568 + 00：00 heroku [run.5329]：用命令启动程序bundle exec rake db:migrate2014-11-16T17：46：30.994709 + 00：00 heroku [run.5329]：状态从开始到 2014-11-16T17：46：35.021047 + 00：00 heroku [run.5329]：进程退出状态1 2014-11-16T17：46：35.027007 + 00：00 heroku [run。5329]：状态从最初变更为完成 2014-11-16T17：47：43 + 00：00 heroku [slug-compiler]：团状编译开始 2014-11-16T17：47：54 + 00：00 heroku [slug编译失败：编译失败：无法编译Ruby应用程序