fix migrator

devops-service/lib/users_permissions_updater.rb

@@ -34,8 +34,9 @@ class UsersPermissionsUpdater
     ids = users.to_a.map {|u| u['_id']}
     puts "users: #{ids.join(', ')}"
 
-    users_collection.update(
-      {"_id" => {'$in' => ids}},
+    ids.each do |id|
+      @users_collection.update(
+        {"_id" => id},
         {
           "$set" => {
             "privileges.stack" => privilege_value,
@@ -45,6 +46,8 @@ class UsersPermissionsUpdater
       )
     end
 
+  end
+
 end
 
 updater = UsersPermissionsUpdater.new