anchor.diff:      }
   
       if (logLevel != Level.OFF) {
  -      log.onRecord.where((rec) => rec.level >= logLevel).listen((rec) {
  +      _log.onRecord.where((rec) => rec.level >= logLevel).listen((rec) {
           print(rec.message);
           if (rec.error != null) {
             print(rec.error);
  
positive.code: import "dart:math" show max;
  
  import "package:args/args.dart";
  import 'package:dart_coveralls/dart_coveralls.dart' show CommandLineClient, log;
  import 'package:logging/logging.dart';
  import 'package:stack_trace/src/chain.dart';
  
  
negative.code: 
    bool handleLogging(ArgResults res) {
      var logLevelStr = res['log-level'];
      if(Level.LEVELS.where((l) => l.value == logLevelStr).length == 0){
        print("Invalid Log level: ${logLevelStr}");
        return false;
      }
  
      Level logLevel = Level.LEVELS
          .firstWhere((level) => level.name.toLowerCase() == logLevelStr);
  