Drupal Queue is not processing with hook cron

Question

All my code is here, the queues are created in backoffice, but the action in the worker call back is never processed. ! I lean the node creation in my function inalco_publications_queue_worker is seemingly not executed at all. I run many times the cron.

  $queues['inalco_publications_queue'] = array(
    'worker callback' => 'inalco_publications_queue_worker',
    // One second max runtime per cron run.
    'time' => 60,
  );

  return $queues;
}

/**
 * Implements hook_cron().
 *
 * hook_cron() is the traditional (pre-Drupal 7) hook for doing "background"
 * processing. It gets called every time the Drupal cron runs and must decide
 * what it will do.
 *
 * In this example, it does a node creation of all Inalco publications linked to REVUE
 */
function inalco_publications_cron() {

       $num_updated = db_update('node')
        ->fields(array(
          'title' => 656655,
          'status' => 1,
        ))
        ->condition('type','test_queue_api', '=')
        ->execute();


    $numeros_revue_bodies = "SELECT entity_id, body_value FROM {field_data_body} where bundle = :bundle";
    $result = db_query($numeros_revue_bodies, array(':bundle' => 'inalco_numero_revue'));

    $queue = DrupalQueue::get('inalco_publications_queue');
            foreach ($result as $row) {

                $queue->createItem($row);
                watchdog('inalco_publications', 'Numero de revue / Entity #ID -'.--$row->entity_id);


            }

  //drupal_flush_all_caches(); // ultra lent ...
}


function inalco_publications_queue_worker($data){


   drupal_set_message(t('Dequeued: %item', array('%item' => $data->body_value))); 
   $html_obj = new simple_html_dom();
   $html_obj->load($data->body_value);

   foreach($html_obj->find('li li') as $bt) {

                $node = new stdClass();
                $node->type = "inalco_publication";
                node_object_prepare($node);
                $node->language = LANGUAGE_NONE; 
                $node->title = $bt->children(0)->plaintext;
                $node->uid = 1; 
                $node->body[$node->language][0]['value'] = $bt->outertext; /// remmettre english 
                $node->field_publication_type[$node->language][0]['tid'] = 692;
                $node->path['pathauto'] = FALSE;
                $node->field_auteur_publication_non_ref[$node->language][]['value'] = $bt->children(1)->plaintext;
                $node = node_submit($node); 
                node_save($node);

   }


}