I've made a new Vagrant box for 64-bit development. Hopefully this helps you out. I've also bumped the default amount of RAM from 256 MB to 512 MB. Enjoy!
Vagrant Base Box: Clean Debian 64-bit OS: Debian 7.4 x64 VirtualBox Additions: 4.3.6 Chef Client: 11.10.2 Preinstalled applications: Curl, Build Essential
URL for Vagrantfile: