Arvados

I don't know what causes this problem, but sometimes for me a run of `arvbox reboot test` gets stuck asking for a sudo password, seemingly because it is trying to install dependencies in a system directory (/var/lib/gems) but is running as the arvbox user that doesn't have permission to do that. Probably it should be installing all of the dependencies into /var/lib/arvados/test/GEMHOME?

Will install dependencies to /var/lib/gems
Will install arvados gems to /var/lib/arvados/test/GEMHOME/.gem/ruby/2.1.0
Gem search path is GEM_PATH=/var/lib/arvados/test/GEMHOME/.gem/ruby/2.1.0:/var/lib/gems
PATH is /var/lib/arvados/test/GEMHOME/.gem/ruby/2.1.0/bin:/var/lib/gems/bin:/var/lib/arvados/test/VENVDIR/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/go/bin:/var/lib/gems/bin

                   ********** Running doc install **********

(Running bundle install --local. 'could not find package' messages are OK.)
Installing rake 10.1.1

We trust you have received the usual lecture from the local System
Administrator. It usually boils down to these three things:

    #1) Respect the privacy of others.
    #2) Think before you type.
    #3) With great power comes great responsibility.

Your user account isn't allowed to install to the system Rubygems.
  You can cancel this installation and run:

      bundle install --path vendor/bundle

  to install the gems into ./vendor/bundle/, or you can enter your password
  and install the bundled gems to Rubygems using sudo.

  Password: