I'm using bash and the latest shell integration script, and no customizations and it's not reproducible. Is this repeatable for you? Can you tell if you have something in your bash config that shell integration doesn't like?
Here's what I did:
Georges-iMac:vagrant gnachman$ vagrant init hashicorp/precise64A `Vagrantfile` has been placed in this directory. You are nowready to `vagrant up` your first virtual environment! Please readthe comments in the Vagrantfile as well as documentation on`vagrantup.com` for more information on using Vagrant.Georges-iMac:vagrant gnachman$ vagrant upBringing machine 'default' up with 'virtualbox' provider...==> default: Box 'hashicorp/precise64' could not be found. Attempting to find and install... default: Box Provider: virtualbox default: Box Version: >= 0==> default: Loading metadata for box 'hashicorp/precise64' default: URL: https://atlas.hashicorp.com/hashicorp/precise64==> default: Adding box 'hashicorp/precise64' (v1.1.0) for provider: virtualbox default: Downloading: https://atlas.hashicorp.com/hashicorp/boxes/precise64/versions/1.1.0/providers/virtualbox.box==> default: Successfully added box 'hashicorp/precise64' (v1.1.0) for 'virtualbox'!==> default: Importing base box 'hashicorp/precise64'...==> default: Matching MAC address for NAT networking...==> default: Checking if box 'hashicorp/precise64' is up to date...==> default: Setting the name of the VM: vagrant_default_1458360308086_94736==> default: Clearing any previously set network interfaces...==> default: Preparing network interfaces based on configuration... default: Adapter 1: nat==> default: Forwarding ports... default: 22 (guest) => 2222 (host) (adapter 1)==> default: Booting VM...==> default: Waiting for machine to boot. This may take a few minutes... default: SSH address: 127.0.0.1:2222 default: SSH username: vagrant default: SSH auth method: private key default: default: Vagrant insecure key detected. Vagrant will automatically replace default: this with a newly generated keypair for better security. default: default: Inserting generated public key within guest... default: Removing insecure key from the guest if it's present... default: Key inserted! Disconnecting and reconnecting using new SSH key...==> default: Machine booted and ready!==> default: Checking for guest additions in VM... default: The guest additions on this VM do not match the installed version of default: VirtualBox! In most cases this is fine, but in rare cases it can default: prevent things such as shared folders from working properly. If you see default: shared folder errors, please make sure the guest additions within the default: virtual machine match the version of VirtualBox you have installed on default: your host and reload your VM. default: default: Guest Additions Version: 4.2.0 default: VirtualBox Version: 5.0==> default: Mounting shared folders... default: /vagrant => /Users/gnachman/vagrantGeorges-iMac:vagrant gnachman$