anchor.diff:  /// Setup the tasks that we are running in both analyzer and dartdoc services.
   void _setupJobCleanupPeriodicTasks() {
     // Deletes Job entities that are older than the accepted runtime versions.
  -  _daily(
  +  _weekly(
       name: 'delete-old-jobs',
       task: () async => await jobBackend.deleteOldEntries(),
     );
   
     // Deletes ScoreCard and ScoreCardReport entities that are older than the
     // accepted runtime versions.
  -  _daily(
  +  _weekly(
       name: 'delete-old-scorecards',
       task: () async => await scoreCardBackend.deleteOldEntries(),
     );
  
positive.code:   ss.registerScopeExitCallback(() => scheduler.stop());
    scheduler.start();
  }
  
negative.code: /// Setup the tasks that we are running in the search service.
  void setupSearchPeriodicTasks() {
    // Deletes the old search snapshots
    _weekly(
      name: 'delete-old-search-snapshots',
      task: () => snapshotStorage.deleteOldData(),
    );
  