Really cool. Tried to run it, unfortunately the code is broken at the moment- saw this error: May 11 19:42:11 fbctf hhvm[12971]: [Wed May 11 19:42:11 2016] [hphp] [12971:7f304b7ff700:6:000001] [] \nFatal error: Class undefined: AsyncMysqlConnectionPool in /var/www/fbctf/src/Db.php on line 19 Very much looking forward to trying it out.
Regarding your actual issue, how did you actually run the provision script, and on what type of server (i.e VM or physical machine)?