anchor.diff:      auto_apply: unsupported
   ''': r'''
   line 4, column 17 of file.yaml: Could not create `Builder`. Unsupported value for `auto_apply`. `unsupported` is not one of the supported values: none, dependents, all_packages, root_package
  -    auto_apply: unsupported
  -                ^^^^^^^^^^^''',
  +  ╷
  +4 │     auto_apply: unsupported
  +  │                 ^^^^^^^^^^^
  +  ╵''',
     r'''
   builders:
     a:
       builder_factories: []
     ''': r'''
   line 3, column 24 of file.yaml: Could not create `Builder`. Unsupported value for `builder_factories`. Must have at least one value.
  -    builder_factories: []
  -                       ^^''',
  +  ╷
  +3 │     builder_factories: []
  +  │                        ^^
  +  ╵''',
     r'''
   builders:
     a:
  
positive.code:           fail('parse should fail');
          } on CheckedFromJsonException catch (e) {
            final prettyOutput = _prettyPrintCheckedFromJsonException(e);
            printOnFailure(prettyOutput);
            expect(prettyOutput, entry.value);
          }
        });
  
negative.code: Unrecognized keys: [baz, foo]; supported keys: [target, import, is_optional, configLocation, auto_apply, build_to, defaultEnumTest, builder_factories, applies_builders, required_inputs, build_extensions]
  
  line 4, column 5 of file.yaml: Invalid key "baz"
    ╷
  4 │     baz: zap
    │     ^^^
    ╵
  line 3, column 5 of file.yaml: Invalid key "foo"
    ╷
  3 │     foo: bar
    │     ^^^
    ╵''',
    r'''
    bob: cool''': r'''
  Could not create `Config`.
  line 1, column 3 of file.yaml: Required keys are missing: builders.
    ╷
  1 │   bob: cool
    │   ^^^^^^^^^
    ╵''',
    r'''
  builders:
    builder_name:
      auto_apply:''': '''
  Could not create `Builder`.
  line 3, column 5 of file.yaml: These keys had `null` values, which is not allowed: [auto_apply]
    ╷
  3 │     auto_apply:
    │     ^^^^^^^^^^^
    ╵''',
    r'''
  builders:
    builder_name:
      builder_factories: ["scssBuilder"]
      configLocation: "user@host:invalid/uri"''': '''
  line 4, column 21 of file.yaml: Could not create `Builder`. Unsupported value for `configLocation`. Illegal scheme character at offset 4.
    ╷
  4 │     configLocation: "user@host:invalid/uri"
    │                     ^^^^^^^^^^^^^^^^^^^^^^^
    ╵'''
  };
  
  String _prettyPrintCheckedFromJsonException(CheckedFromJsonException err) {
  