Repro for chef/bento#232 with Vagrant 1.6.3

stdout-broken

W:\tmp\chef-box>vagrant up broken
Bringing machine 'broken' up with 'virtualbox' provider...
==> broken: Importing base box 'chef/ubuntu-14.04-i386'...
==> broken: Matching MAC address for NAT networking...
==> broken: Checking if box 'chef/ubuntu-14.04-i386' is up to date...
==> broken: Setting the name of the VM: chef-box_broken_1408782532845_96773
==> broken: Fixed port collision for 22 => 2222. Now on port 2200.
==> broken: Clearing any previously set network interfaces...
==> broken: Preparing network interfaces based on configuration...
    broken: Adapter 1: nat
==> broken: Forwarding ports...
    broken: 22 => 2200 (adapter 1)
==> broken: Booting VM...
==> broken: Waiting for machine to boot. This may take a few minutes...
    broken: SSH address: 127.0.0.1:2200
    broken: SSH username: vagrant
    broken: SSH auth method: private key
    broken: Warning: Connection timeout. Retrying...
==> broken: Machine booted and ready!
==> broken: Checking for guest additions in VM...
==> broken: Mounting shared folders...
    broken: /vagrant => W:/tmp/chef-box
Failed to mount folders in Linux guest. This is usually because
the "vboxsf" file system is not available. Please verify that
the guest additions are properly installed in the guest and
can work properly. The command attempted was:

mount -t vboxsf -o uid=`id -u vagrant`,gid=`getent group vagrant | cut -d: -f3` vagrant /vagrant
mount -t vboxsf -o uid=`id -u vagrant`,gid=`id -g vagrant` vagrant /vagrant

stdout-works

W:\tmp\chef-box>vagrant up works
Bringing machine 'works' up with 'virtualbox' provider...
==> works: Importing base box 'chef/ubuntu-14.04'...
==> works: Matching MAC address for NAT networking...
==> works: Checking if box 'chef/ubuntu-14.04' is up to date...
==> works: Setting the name of the VM: chef-box_works_1408782482898_35581
==> works: Clearing any previously set network interfaces...
==> works: Preparing network interfaces based on configuration...
    works: Adapter 1: nat
==> works: Forwarding ports...
    works: 22 => 2222 (adapter 1)
==> works: Booting VM...
==> works: Waiting for machine to boot. This may take a few minutes...
    works: SSH address: 127.0.0.1:2222
    works: SSH username: vagrant
    works: SSH auth method: private key
    works: Warning: Connection timeout. Retrying...
==> works: Machine booted and ready!
==> works: Checking for guest additions in VM...
==> works: Mounting shared folders...
    works: /vagrant => W:/tmp/chef-box
    works: /tmp/vagrant-cache => W:/home/.vagrant.d/cache/chef/ubuntu-14.04
==> works: Configuring cache buckets...

Vagrantfile

Vagrant.configure("2") do |config|
  
  # x64 box works as expected
  config.vm.define :works do |c|
    c.vm.box = "chef/ubuntu-14.04"
  end

  # i386 box fails when mounting shared folders
  config.vm.define :broken do |c|
    c.vm.box = "chef/ubuntu-14.04-i386"
  end
end