Ensure all created boxes are destroyed

Rakefile

@@ -14,7 +14,17 @@ namespace :features do
 
   desc 'Removes testing vagrant box.'
   task(:cleanup) do
-    system('bundle exec vagrant destroy -f')
-    system('bundle exec vagrant box remove vagrant_exec virtualbox')
+    system('bundle exec vagrant box remove --force vagrant_exec')
+
+    # For some reason, vagrant destroy ID fails for us
+    # so let's just stick to pure VirtualBox
+
+    `VBoxManage list vms`
+      .split("\n")
+      .select { |line| line =~ /aruba_(default|vagrant)/ }
+      .map { |line| line.match(/\{([\w-]+)\}/)[1] }
+      .each { |uuid| system("VBoxManage unregistervm #{uuid} -delete") }
+
+    system('bundle exec vagrant global-status --prune')
   end
 end