Meteor - Publish all Users to Client just for admin

I have the folowing problem with Meteor: I have one admin, that needs to see all registered users. But all the other users shouldn't have the ability to see the other users. Therefore I published the following code on the serverside

Meteor.publish("adminUsers", function(){

   var result; 
   if (Roles.userIsInRole(this.userId, ["admin"]))
   {
        result = Meteor.users.find();
   }
   //console.log(result);
   return result;
});

On client side I subscribe to this with

Meteor.subscribe("adminUsers");

And do

AllUsers = new Meteor.Collection("adminUsers");

Now I want to get all the Users in a Template with this code:

Template.adminUserverwaltung.AllUsers = function(){
console.log(AllUsers.find());
return AllUsers.find();
}

and show the result in the template with this code:

    <template name="adminUserverwaltung">
  {{#each AllUsers}}
    {{this.username}}
  {{/each}}
</template>

But unfortunately it is not working... Can anyone help me maybe?