git plugin install failure behind proxy

gistfile1.txt

# vagrant plugin install vagrant-cachier --debug
 INFO global: Vagrant version: 1.4.2
 INFO global: Ruby version: 2.0.0
 INFO global: RubyGems version: 2.0.14
 INFO global: VAGRANT_INSTALLER_EMBEDDED_DIR="/opt/vagrant/bin/../embedded"
 INFO global: VAGRANT_INSTALLER_VERSION="2"
 INFO global: VAGRANT_DETECTED_OS="Linux"
 INFO global: VAGRANT_INSTALLER_ENV="1"
 INFO global: VAGRANT_LOG="debug"
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/synced_folders/nfs/plugin.rb
 INFO manager: Registered plugin: NFS synced folders
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/kernel_v2/plugin.rb
 INFO manager: Registered plugin: kernel
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/kernel_v1/plugin.rb
 INFO manager: Registered plugin: kernel
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/communicators/ssh/plugin.rb
 INFO manager: Registered plugin: ssh communicator
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/hosts/opensuse/plugin.rb
 INFO manager: Registered plugin: OpenSUSE host
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/hosts/arch/plugin.rb
 INFO manager: Registered plugin: Arch host
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/hosts/linux/plugin.rb
 INFO manager: Registered plugin: Linux host
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/hosts/freebsd/plugin.rb
 INFO manager: Registered plugin: FreeBSD host
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/hosts/slackware/plugin.rb
 INFO manager: Registered plugin: Slackware host
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/hosts/windows/plugin.rb
 INFO manager: Registered plugin: Windows host
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/hosts/bsd/plugin.rb
 INFO manager: Registered plugin: BSD host
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/hosts/gentoo/plugin.rb
 INFO manager: Registered plugin: Gentoo host
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/hosts/redhat/plugin.rb
 INFO manager: Registered plugin: Red Hat host
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/guests/ubuntu/plugin.rb
 INFO manager: Registered plugin: Ubuntu guest
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/guests/openbsd/plugin.rb
 INFO manager: Registered plugin: OpenBSD guest
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/guests/solaris11/plugin.rb
 INFO manager: Registered plugin: Solaris 11 guest.
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/guests/pld/plugin.rb
 INFO manager: Registered plugin: PLD Linux guest
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/guests/debian/plugin.rb
 INFO manager: Registered plugin: Debian guest
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/guests/arch/plugin.rb
 INFO manager: Registered plugin: Arch guest
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/guests/solaris/plugin.rb
 INFO manager: Registered plugin: Solaris guest.
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/guests/esxi/plugin.rb
 INFO manager: Registered plugin: ESXi guest.
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/guests/coreos/plugin.rb
 INFO manager: Registered plugin: CoreOS guest
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/guests/linux/plugin.rb
 INFO manager: Registered plugin: Linux guest.
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/guests/freebsd/plugin.rb
 INFO manager: Registered plugin: FreeBSD guest
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/guests/suse/plugin.rb
 INFO manager: Registered plugin: SUSE guest
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/guests/omnios/plugin.rb
 INFO manager: Registered plugin: OmniOS guest.
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/guests/darwin/plugin.rb
 INFO manager: Registered plugin: Darwin guest
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/guests/gentoo/plugin.rb
 INFO manager: Registered plugin: Gentoo guest
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/guests/redhat/plugin.rb
 INFO manager: Registered plugin: RedHat guest
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/guests/fedora/plugin.rb
 INFO manager: Registered plugin: Fedora guest
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/provisioners/file/plugin.rb
 INFO manager: Registered plugin: file
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/provisioners/ansible/plugin.rb
 INFO manager: Registered plugin: ansible
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/provisioners/cfengine/plugin.rb
 INFO manager: Registered plugin: CFEngine Provisioner
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/provisioners/puppet/plugin.rb
 INFO manager: Registered plugin: puppet
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/provisioners/salt/plugin.rb
 INFO manager: Registered plugin: salt
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/provisioners/shell/plugin.rb
 INFO manager: Registered plugin: shell
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/provisioners/docker/plugin.rb
 INFO manager: Registered plugin: docker
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/provisioners/chef/plugin.rb
 INFO manager: Registered plugin: chef
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/providers/virtualbox/plugin.rb
 INFO manager: Registered plugin: VirtualBox provider
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/package/plugin.rb
 INFO manager: Registered plugin: package command
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/plugin/plugin.rb
 INFO manager: Registered plugin: plugin command
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/halt/plugin.rb
 INFO manager: Registered plugin: halt command
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/suspend/plugin.rb
 INFO manager: Registered plugin: suspend command
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/ssh_config/plugin.rb
 INFO manager: Registered plugin: ssh-config command
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/resume/plugin.rb
 INFO manager: Registered plugin: resume command
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/help/plugin.rb
 INFO manager: Registered plugin: help command
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/up/plugin.rb
 INFO manager: Registered plugin: up command
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/init/plugin.rb
 INFO manager: Registered plugin: init command
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/provision/plugin.rb
 INFO manager: Registered plugin: provision command
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/status/plugin.rb
 INFO manager: Registered plugin: status command
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/reload/plugin.rb
 INFO manager: Registered plugin: reload command
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/ssh/plugin.rb
 INFO manager: Registered plugin: ssh command
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/box/plugin.rb
 INFO manager: Registered plugin: box command
DEBUG global: Loading core plugin: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/destroy/plugin.rb
 INFO manager: Registered plugin: destroy command
 INFO vagrant: `vagrant` invoked: ["plugin", "install", "vagrant-cachier", "--debug"]
DEBUG vagrant: Creating Vagrant environment
 INFO environment: Environment initialized (#<Vagrant::Environment:0x000000015fde20>)
 INFO environment:   - cwd: /root
 INFO environment: Home path: /root/.vagrant.d
 WARN environment: No local data path is set. Local data cannot be stored.
DEBUG environment: Loading plugins from: /root/.vagrant.d/plugins.json
 INFO environment: Running hook: environment_plugins_loaded
 INFO runner: Running action: #<Vagrant::Action::Builder:0x000000017d4b40>
 INFO environment: Running hook: environment_load
 INFO environment: Initializing config...
 INFO loader: Set :default = "/opt/vagrant/embedded/gems/gems/vagrant-1.4.2/config/default.rb"
DEBUG loader: Populating proc cache for "/opt/vagrant/embedded/gems/gems/vagrant-1.4.2/config/default.rb"
DEBUG loader: Load procs for pathname: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/config/default.rb
 INFO loader: Loading configuration in order: [:default, :home, :root]
DEBUG loader: Loading from: default (evaluating)
DEBUG loader: Configuration loaded successfully, finalizing and returning
DEBUG hosts: Host path search classes: [VagrantPlugins::HostRedHat::Host, VagrantPlugins::HostGentoo::Host, VagrantPlugins::HostArch::Host, VagrantPlugins::HostWindows::Host, VagrantPlugins::HostOpenSUSE::Host, VagrantPlugins::HostFreeBSD::Host, VagrantPlugins::HostSlackware::Host, VagrantPlugins::HostBSD::Host, VagrantPlugins::HostLinux::Host]
 INFO hosts: Host class: VagrantPlugins::HostLinux::Host
 INFO runner: Running action: #<Vagrant::Action::Builder:0x00000001696be8>
 INFO cli: CLI: [] "plugin" ["install", "vagrant-cachier", "--"]
DEBUG cli: Invoking command class: VagrantPlugins::CommandPlugin::Command::Root ["install", "vagrant-cachier", "--"]
DEBUG root: Invoking command class: VagrantPlugins::CommandPlugin::Command::Install ["vagrant-cachier", "--"]
 INFO runner: Running action: #<Vagrant::Action::Builder:0x000000022062a8>
 INFO warden: Calling IN action: #<VagrantPlugins::CommandPlugin::Action::BundlerCheck:0x00000001ec6458>
 INFO warden: Calling IN action: #<VagrantPlugins::CommandPlugin::Action::InstallGem:0x00000001ec6430>
 INFO interface: info: Installing the 'vagrant-cachier' plugin. This can take a few minutes...
Installing the 'vagrant-cachier' plugin. This can take a few minutes...
DEBUG gemhelper: Set GEM_* to: /root/.vagrant.d/gems
ERROR warden: Error occurred: The plugin 'vagrant-cachier' could not be found in local or remote
repositories. Please check the name of the plugin and try again.
 INFO warden: Beginning recovery process...
 INFO warden: Calling recover: #<VagrantPlugins::CommandPlugin::Action::InstallGem:0x00000001ec6430>
 INFO warden: Recovery complete.
 INFO warden: Beginning recovery process...
 INFO warden: Recovery complete.
 INFO environment: Running hook: environment_unload
 INFO runner: Running action: #<Vagrant::Action::Builder:0x00000001ef30c0>
ERROR vagrant: Vagrant experienced an error! Details:
ERROR vagrant: #<Vagrant::Errors::PluginInstallNotFound: The plugin 'vagrant-cachier' could not be found in local or remote
repositories. Please check the name of the plugin and try again.>
ERROR vagrant: The plugin 'vagrant-cachier' could not be found in local or remote
repositories. Please check the name of the plugin and try again.
ERROR vagrant: /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/plugin/action/install_gem.rb:67:in `rescue in block in call'
/opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/plugin/action/install_gem.rb:64:in `block in call'
/opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/plugin/gem_helper.rb:42:in `block in with_environment'
/opt/vagrant/embedded/lib/ruby/2.0.0/rubygems/user_interaction.rb:40:in `use_ui'
/opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/plugin/gem_helper.rb:41:in `with_environment'
/opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/plugin/action/install_gem.rb:52:in `call'
/opt/vagrant/embedded/gems/gems/vagrant-1.4.2/lib/vagrant/action/warden.rb:34:in `call'
/opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/plugin/action/bundler_check.rb:20:in `call'
/opt/vagrant/embedded/gems/gems/vagrant-1.4.2/lib/vagrant/action/warden.rb:34:in `call'
/opt/vagrant/embedded/gems/gems/vagrant-1.4.2/lib/vagrant/action/builder.rb:116:in `call'
/opt/vagrant/embedded/gems/gems/vagrant-1.4.2/lib/vagrant/action/runner.rb:69:in `block in run'
/opt/vagrant/embedded/gems/gems/vagrant-1.4.2/lib/vagrant/util/busy.rb:19:in `busy'
/opt/vagrant/embedded/gems/gems/vagrant-1.4.2/lib/vagrant/action/runner.rb:69:in `run'
/opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/plugin/command/base.rb:17:in `action'
/opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/plugin/command/install.rb:27:in `execute'
/opt/vagrant/embedded/gems/gems/vagrant-1.4.2/plugins/commands/plugin/command/root.rb:56:in `execute'
/opt/vagrant/embedded/gems/gems/vagrant-1.4.2/lib/vagrant/cli.rb:38:in `execute'
/opt/vagrant/embedded/gems/gems/vagrant-1.4.2/lib/vagrant/environment.rb:484:in `cli'
/opt/vagrant/embedded/gems/gems/vagrant-1.4.2/bin/vagrant:127:in `<top (required)>'
/opt/vagrant/bin/../embedded/gems/bin/vagrant:23:in `load'
/opt/vagrant/bin/../embedded/gems/bin/vagrant:23:in `<main>'
 INFO interface: error: The plugin 'vagrant-cachier' could not be found in local or remote
repositories. Please check the name of the plugin and try again.
The plugin 'vagrant-cachier' could not be found in local or remote
repositories. Please check the name of the plugin and try again.