anchor.diff:  
   import 'package:logging/logging.dart';
   import 'package:pana/pana.dart' hide Pubspec, ReportStatus;
  +import 'package:pana/pana.dart' as pana show ReportStatus;
   import 'package:path/path.dart' as p;
   
   import 'package:pub_dartdoc_data/pub_dartdoc_data.dart';
  
positive.code:     if (packageStatus.isObsolete) {
        _logger
            .info('Package is older than two years and has newer release: $job.');
        await _storeScoreCard(job, _emptyReport());
        return JobStatus.skipped;
      }
  
  
negative.code:     // We know that dartdoc will fail on this package, no reason to run it.
      if (packageStatus.isLegacy) {
        _logger.info('Package is on legacy SDK: $job.');
        await _storeScoreCard(
            job,
            _emptyReport(
              title: 'Did not run dartdoc',
              description:
                  'This package is not compatible with the current analysis SDK version',
            ));
        return JobStatus.skipped;
      }
  
  