anchor.diff:          consumeTransitiveSassDeps(transform, importedAsset, visitedIds);
         } catch (e, s) {
           transform.logger.warning(
  -            "Failed to resolve import of '$url' from ${asset.id}: $e");
  +            "Failed to resolve import of '$url' from ${asset.id}: $e\n$s");
         }
       })());
     }
  
positive.code:   // TODO(ochafik): Handle .sass files?
    var sass = await asset.readAsString();
    var futures = <Future>[];
    for (var match in _importRx.allMatches(sass)) {
      var url = match.group(1);
      if (!url.endsWith('.scss')) {
        // Expand sass partial: foo/bar -> foo/_bar.scss
        var split = url.split('/');
        split[split.length - 1] = '_${split.last}.scss';
        url = split.join('/');
      }
      futures.add((() async {
        try {
  
negative.code: import 'dart:async';
  import 'package:scissors/src/path_resolver.dart';
  
  final RegExp _importRx = new RegExp(r'''^\s*@import ['"]([^'"]+)['"]''');
  final RegExp _commentsRx = new RegExp(r'''//.*?\n|/\*.*?\*/''', multiLine: true);
  
  /// Eagerly consume transitive sass imports.
  ///
  