I've been told this is due to the server running out of memory while trying to clone the repository. Do you happen to be running on a 512MB server?

I've had this on forge. I installed Ajenti as a server admin.

Have you made any changes to your server manually?

No input file quite often means that PHP isn't set up properly. Basically, there is not index.html file (naturally, Laravel uses index.php) and so, the server doesn't know what to do.

If you put a test index.html file on the server, does it load ok? If it does, take a look at PHP and make sure that is set up ok.

Hope it helps.

Dunno if you've solved this yet, but I was experiencing the same issue and found a fix.

http://laravel.io/forum/01-28-2015-laravel-forge-no-input-file-specified - might as well paste here in case anyone else comes across this thread with the same problem. :)

@slev70 actually i'm curious how you got a fix from that posting. It didn't fix it for me.