Mounting default shared folders fails

[toobulkeh]

Vagrant version 1.2.2
Basebox - https://opscode-vm.s3.amazonaws.com/vagrant/opscode_ubuntu-12.04_chef-11.4.4.box (precise64 + latest Chef inside box)
Host OS - Windows 8 Pro x64
Host Terminals - CMD and MINGW32

Error output:
https://gist.github.com/toobulkeh/0206a56447a7f0c53982

Commentary:
I built this Vagrantfile without any sync folder config (from an old v1 config, after removing the old sync line that is now default) and no /vagrant was created. I manually created the line config.vm.synced_folder "", "/vagrant" which worked the first run. Subsequent runs seem to fail with this error. I even took that line out (to try and make sure it didn't try a mkdir -p but I'm still getting the same errors.

Thought it might've been a console problem as I normally run MINGW32 for GIT cmdline integration as well, but switching to CMD didn't help.

Thanks!

[toobulkeh]

At first I thought this had to do with #1659 -- but it turns out that this had to do with a stupid ssh-agent script in the vagrant user's .profile that was overcorrecting for keys being added to the agent. removed that and we're back.

Sorry!

[lightgao]

This help me, thanks.
I got similar error, and I remove "config.ssh.forward_agent = true" in my Vagrant file, then back to normally.