vlad:setup, vlad:update and vlad:start_app all work as they should, however vlad:migrate does nothing and just exits
(no message, no nothing).

I’ve tracked the issue to lib/vlad/rails.rb:31 (vlad-2.1.0):
  run ["cd #{directory}",
       "#{rake_cmd} RAILS_ENV=#{rails_env} db:migrate #{migrate_args}"
      ].join(" ")

Changing the “join(" ")” to “join(" && ")” will remedy this issue for me.