# YAML Test Matrix

--- &test-P2EQ
  Title: Invalid sequene item on same line as previous item
  Tags: [ error, flow, mapping, sequence ]

YAML

---
- { y: z }- invalid

Expected Events

+STR
+DOC ---
+SEQ
+MAP
=VAL :y
=VAL :z
-MAP

Expected JSON



perl-pp-event

 invalid_incorrect
+STR
+DOC ---
+SEQ
+MAP
=VAL :y
=VAL :z
-MAP
=VAL :invalid
-SEQ
-DOC
-STR

perl-pp-json

 invalid_incorrect
[
   {
      "y" : "z"
   },
   "invalid"
]

perl-pp-perl

 invalid_incorrect
[
  {
    'y' => 'z'
  },
  'invalid'
]

c-libfyaml-event

 invalid_correct
stdin:2:11: error: block sequence on the same line as a previous item
- { y: z }- invalid
          ^
+STR
+DOC ---
+SEQ

c-libfyaml-json

 invalid_correct
stdin:2:11: error: block sequence on the same line as a previous item
- { y: z }- invalid
          ^

c-libyaml-event

 invalid_correct
Parse error: block sequence entries are not allowed in this context
+STR
+DOC ---
+SEQ

cpp-yamlcpp-event

 invalid_correct
Exception:
yaml-cpp: error at line 2, column 11: illegal block entry
+STR
+DOC
+SEQ

dotnet-yamldotnet-event

 invalid_correct
Unhandled exception. YamlDotNet.Core.SyntaxErrorException: (Line: 2, Col: 11, Idx: 14) - (Line: 2, Col: 11, Idx: 14): Block sequence entries are not allowed in this context.
   at YamlDotNet.Core.Scanner.FetchBlockEntry()
   at YamlDotNet.Core.Scanner.FetchNextToken()
   at YamlDotNet.Core.Scanner.FetchMoreTokens()
   at YamlDotNet.Core.Scanner.MoveNextWithoutConsuming()
   at YamlDotNet.Core.Parser.GetCurrentToken()
   at YamlDotNet.Core.Parser.ParseBlockSequenceEntry(Boolean isFirst)
   at YamlDotNet.Core.Parser.StateMachine()
   at YamlDotNet.Core.Parser.MoveNext()
   at Program.ConvertToLibYamlStyleAnnotatedEventStream(TextReader textReader, TextWriter textWriter)
   at Program.Main(String[] commandLineArguments)
Aborted (core dumped)
+STR
+DOC ---
+SEQ

dotnet-yamldotnet-json

 invalid_correct
Unhandled exception. YamlDotNet.Core.SyntaxErrorException: (Line: 2, Col: 11, Idx: 14) - (Line: 2, Col: 11, Idx: 14): Block sequence entries are not allowed in this context.
   at YamlDotNet.Core.Scanner.FetchBlockEntry()
   at YamlDotNet.Core.Scanner.FetchNextToken()
   at YamlDotNet.Core.Scanner.FetchMoreTokens()
   at YamlDotNet.Core.Scanner.MoveNextWithoutConsuming()
   at YamlDotNet.Core.Parser.GetCurrentToken()
   at YamlDotNet.Core.Parser.ParseBlockSequenceEntry(Boolean isFirst)
   at YamlDotNet.Core.Parser.StateMachine()
   at YamlDotNet.Core.Parser.MoveNext()
   at YamlDotNet.Core.ParserExtensions.Allow[T](IParser parser)
   at YamlDotNet.Core.ParserExtensions.Expect[T](IParser parser)
   at YamlDotNet.Serialization.NodeDeserializers.CollectionNodeDeserializer.DeserializeHelper(Type tItem, IParser parser, Func`3 nestedObjectDeserializer, IList result, Boolean canUpdate)
   at YamlDotNet.Serialization.NodeDeserializers.CollectionNodeDeserializer.YamlDotNet.Serialization.INodeDeserializer.Deserialize(IParser parser, Type expectedType, Func`3 nestedObjectDeserializer, Object& value)
   at YamlDotNet.Serialization.ValueDeserializers.NodeValueDeserializer.DeserializeValue(IParser parser, Type expectedType, SerializerState state, IValueDeserializer nestedObjectDeserializer)
   at YamlDotNet.Serialization.ValueDeserializers.AliasValueDeserializer.DeserializeValue(IParser parser, Type expectedType, SerializerState state, IValueDeserializer nestedObjectDeserializer)
   at YamlDotNet.Serialization.Deserializer.Deserialize(IParser parser, Type type)
   at YamlDotNet.Serialization.Deserializer.Deserialize(TextReader input, Type type)
   at YamlDotNet.Serialization.Deserializer.Deserialize(TextReader input)
   at Program.Main(String[] commandLineArguments)
Aborted (core dumped)

hs-hsyaml-event

 invalid_correct
Parsing error near byte offset Pos {posByteOffset = 14, posCharOffset = 14, posLine = 2, posColumn = 10} (Expected start of line)
+STR
+DOC ---
+SEQ
+MAP
=VAL :y
=VAL :z
-MAP

hs-hsyaml-json

 invalid_correct
hsyaml-parser: user error (Expected start of line)

java-snakeyaml-event

 invalid_correct
Exception in thread "main" sequence entries are not allowed here
 in 'reader', line 2, column 11:
    - { y: z }- invalid
              ^

	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchBlockEntry(ScannerImpl.java:777)
	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:315)
	at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:227)
	at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockSequenceEntry.produce(ParserImpl.java:504)
	at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockSequenceFirstEntry.produce(ParserImpl.java:496)
	at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:158)
	at org.yaml.snakeyaml.Yaml$3.hasNext(Yaml.java:654)
	at org.yaml.editor.Snake2Events.yamlToEvents(Snake2Events.java:111)
	at org.yaml.editor.Snake2Events.main(Snake2Events.java:119)

java-snakeyaml-json

 invalid_correct
Exception in thread "main" sequence entries are not allowed here
 in 'reader', line 2, column 11:
    - { y: z }- invalid
              ^

	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchBlockEntry(ScannerImpl.java:777)
	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:315)
	at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:227)
	at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockSequenceEntry.produce(ParserImpl.java:504)
	at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockSequenceFirstEntry.produce(ParserImpl.java:496)
	at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:158)
	at org.yaml.snakeyaml.parser.ParserImpl.checkEvent(ParserImpl.java:148)
	at org.yaml.snakeyaml.composer.Composer.composeSequenceNode(Composer.java:208)
	at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:160)
	at org.yaml.snakeyaml.composer.Composer.getNode(Composer.java:95)
	at org.yaml.snakeyaml.constructor.BaseConstructor.getData(BaseConstructor.java:134)
	at org.yaml.snakeyaml.Yaml$1.next(Yaml.java:494)
	at org.yaml.editor.Snake2Json.yamlToJson(Snake2Json.java:18)
	at org.yaml.editor.Snake2Json.main(Snake2Json.java:25)

js-jsyaml-json

 invalid_correct
/node/node_modules/js-yaml/lib/js-yaml/loader.js:173
  throw generateError(state, message);
  ^
YAMLException: bad indentation of a sequence entry at line 2, column 11:
    - { y: z }- invalid
              ^
    at generateError (/node/node_modules/js-yaml/lib/js-yaml/loader.js:167:10)
    at throwError (/node/node_modules/js-yaml/lib/js-yaml/loader.js:173:9)
    at readBlockSequence (/node/node_modules/js-yaml/lib/js-yaml/loader.js:962:7)
    at composeNode (/node/node_modules/js-yaml/lib/js-yaml/loader.js:1358:12)
    at readDocument (/node/node_modules/js-yaml/lib/js-yaml/loader.js:1519:3)
    at loadDocuments (/node/node_modules/js-yaml/lib/js-yaml/loader.js:1575:5)
    at Object.loadAll (/node/node_modules/js-yaml/lib/js-yaml/loader.js:1583:19)
    at Object.<anonymous> (/yaml/bin/js-jsyaml-json:7:13)
    at Module._compile (internal/modules/cjs/loader.js:778:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)

js-yaml-event

 invalid_correct
All collection items must start at the same column
+STR
+DOC ---

js-yaml-json

 invalid_correct
/yaml/bin/js-yaml-json:8
  if (doc.errors.length !== 0) throw doc.errors[0]
                               ^

YAMLSyntaxError: All collection items must start at the same column
    at Collection.parse (/node/node_modules/yaml/dist/parse-cst.js:331:24)
    at ParseContext.PlainValue._defineProperty (/node/node_modules/yaml/dist/parse-cst.js:1605:29)
    at Document.parseContents (/node/node_modules/yaml/dist/parse-cst.js:622:26)
    at Document.parse (/node/node_modules/yaml/dist/parse-cst.js:685:19)
    at Object.parse (/node/node_modules/yaml/dist/parse-cst.js:1723:18)
    at Object.parseAllDocuments (/node/node_modules/yaml/dist/index.js:32:33)
    at Object.<anonymous> (/yaml/bin/js-yaml-json:7:19)
    at Module._compile (internal/modules/cjs/loader.js:778:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
    at Module.load (internal/modules/cjs/loader.js:653:32)

lua-lyaml-json

 invalid_correct
luajit: 2:1: block sequence entries are not allowed in this context
stack traceback:
	[C]: in function 'error'
	/usr/local/share/lua/5.1/lyaml/init.lua:291: in function 'error'
	/usr/local/share/lua/5.1/lyaml/init.lua:310: in function 'parse'
	/usr/local/share/lua/5.1/lyaml/init.lua:428: in function 'load_node'
	/usr/local/share/lua/5.1/lyaml/init.lua:378: in function 'load_node'
	/usr/local/share/lua/5.1/lyaml/init.lua:482: in function 'load'
	/yaml/bin/lua-lyaml-json:6: in main chunk
	[C]: at 0x55af32e88f97

nim-nimyaml-event

 invalid_correct
/buildutils/nimyaml_event.nim(8) nimyaml_event
/tmp/NimYAML-0.13.1/yaml/stream.nim(223) finished
Error: unhandled exception: Illegal token (expected ':', comment or line end): ltSeqItemInd [YamlStreamError]
+STR
+DOC ---
+SEQ
+MAP
=VAL :y
=VAL :z
-MAP

perl-pplibyaml-event

 invalid_correct
YAML::PP::LibYAML Error: The problem:

    block sequence entries are not allowed in this context

was found at , line: 2, column: 11

perl-pplibyaml-json

 invalid_correct
YAML::PP::LibYAML Error: The problem:

    block sequence entries are not allowed in this context

was found at , line: 2, column: 11

perl-pplibyaml-perl

 invalid_correct
YAML::PP::LibYAML Error: The problem:

    block sequence entries are not allowed in this context

was found at , line: 2, column: 11

perl-syck-json

 invalid_correct
Syck parser (line 2, column 10): syntax error at /perl5/lib/perl5/x86_64-linux-thread-multi/YAML/Syck.pm line 60, <> line 1.

perl-syck-perl

 invalid_correct
Syck parser (line 2, column 10): syntax error at /perl5/lib/perl5/x86_64-linux-thread-multi/YAML/Syck.pm line 60, <> line 1.

perl-tiny-json

 invalid_correct
YAML::Tiny found illegal characters in plain scalar: '{ y: z }- invalid' at /yaml/bin/perl-tiny-json line 12.

perl-tiny-perl

 invalid_correct
YAML::Tiny found illegal characters in plain scalar: '{ y: z }- invalid' at /yaml/bin/perl-tiny-perl line 15.

perl-xs-json

 invalid_correct
YAML::XS::Load Error: The problem:

    block sequence entries are not allowed in this context

was found at document: 1, line: 2, column: 11

perl-xs-perl

 invalid_correct
YAML::XS::Load Error: The problem:

    block sequence entries are not allowed in this context

was found at document: 1, line: 2, column: 11

perl-yaml-json

 invalid_correct
YAML Error: Couldn't parse single line value
   Code: YAML_PARSE_ERR_SINGLE_LINE
   Line: 2
   Document: 1
 at /perl5/lib/perl5/YAML/Loader.pm line 164.

perl-yaml-perl

 invalid_correct
YAML Error: Couldn't parse single line value
   Code: YAML_PARSE_ERR_SINGLE_LINE
   Line: 2
   Document: 1
 at /perl5/lib/perl5/YAML/Loader.pm line 164.

py-pyyaml-event

 invalid_correct
Traceback (most recent call last):
  File "/yaml/bin/py-pyyaml-event", line 7, in <module>
    for event in yaml.parse(sys.stdin.read()):
  File "/python/lib/python3.7/site-packages/yaml/__init__.py", line 75, in parse
    while loader.check_event():
  File "/python/lib/python3.7/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/python/lib/python3.7/site-packages/yaml/parser.py", line 379, in parse_block_sequence_first_entry
    return self.parse_block_sequence_entry()
  File "/python/lib/python3.7/site-packages/yaml/parser.py", line 384, in parse_block_sequence_entry
    if not self.check_token(BlockEntryToken, BlockEndToken):
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 215, in fetch_more_tokens
    return self.fetch_block_entry()
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 493, in fetch_block_entry
    self.get_mark())
yaml.scanner.ScannerError: sequence entries are not allowed here
  in "<unicode string>", line 2, column 11:
    - { y: z }- invalid
              ^
+STR
+DOC ---
+SEQ

py-pyyaml-json

 invalid_correct
Traceback (most recent call last):
  File "/yaml/bin/py-pyyaml-json", line 19, in <module>
    for doc in yaml.load_all(sys.stdin.read(), Loader=yaml.FullLoader):
  File "/python/lib/python3.7/site-packages/yaml/__init__.py", line 130, in load_all
    yield loader.get_data()
  File "/python/lib/python3.7/site-packages/yaml/constructor.py", line 45, in get_data
    return self.construct_document(self.get_node())
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 27, in get_node
    return self.compose_document()
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 82, in compose_node
    node = self.compose_sequence_node(anchor)
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 110, in compose_sequence_node
    while not self.check_event(SequenceEndEvent):
  File "/python/lib/python3.7/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/python/lib/python3.7/site-packages/yaml/parser.py", line 379, in parse_block_sequence_first_entry
    return self.parse_block_sequence_entry()
  File "/python/lib/python3.7/site-packages/yaml/parser.py", line 384, in parse_block_sequence_entry
    if not self.check_token(BlockEntryToken, BlockEndToken):
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 215, in fetch_more_tokens
    return self.fetch_block_entry()
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 493, in fetch_block_entry
    self.get_mark())
yaml.scanner.ScannerError: sequence entries are not allowed here
  in "<unicode string>", line 2, column 11:
    - { y: z }- invalid
              ^

py-pyyaml-py

 invalid_correct
Traceback (most recent call last):
  File "/yaml/bin/py-pyyaml-py", line 36, in <module>
    for doc in yaml.load_all(sys.stdin.read(), Loader=yaml.FullLoader):
  File "/python/lib/python3.7/site-packages/yaml/__init__.py", line 130, in load_all
    yield loader.get_data()
  File "/python/lib/python3.7/site-packages/yaml/constructor.py", line 45, in get_data
    return self.construct_document(self.get_node())
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 27, in get_node
    return self.compose_document()
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 82, in compose_node
    node = self.compose_sequence_node(anchor)
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 110, in compose_sequence_node
    while not self.check_event(SequenceEndEvent):
  File "/python/lib/python3.7/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/python/lib/python3.7/site-packages/yaml/parser.py", line 379, in parse_block_sequence_first_entry
    return self.parse_block_sequence_entry()
  File "/python/lib/python3.7/site-packages/yaml/parser.py", line 384, in parse_block_sequence_entry
    if not self.check_token(BlockEntryToken, BlockEndToken):
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 215, in fetch_more_tokens
    return self.fetch_block_entry()
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 493, in fetch_block_entry
    self.get_mark())
yaml.scanner.ScannerError: sequence entries are not allowed here
  in "<unicode string>", line 2, column 11:
    - { y: z }- invalid
              ^

py-ruamel-event

 invalid_correct
Traceback (most recent call last):
  File "/yaml/bin/py-ruamel-event", line 7, in <module>
    for event in ruamel.yaml.parse(sys.stdin.read()):
  File "/python/lib/python3.7/site-packages/ruamel/yaml/main.py", line 907, in parse
    while loader._parser.check_event():
  File "/python/lib/python3.7/site-packages/ruamel/yaml/parser.py", line 140, in check_event
    self.current_event = self.state()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/parser.py", line 506, in parse_block_sequence_first_entry
    return self.parse_block_sequence_entry()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/parser.py", line 512, in parse_block_sequence_entry
    token.move_comment(self.scanner.peek_token())
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 183, in peek_token
    self.fetch_more_tokens()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 275, in fetch_more_tokens
    return self.fetch_block_entry()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 569, in fetch_block_entry
    None, None, 'sequence entries are not allowed here', self.reader.get_mark()
ruamel.yaml.scanner.ScannerError: sequence entries are not allowed here
  in "<unicode string>", line 2, column 11:
    - { y: z }- invalid
              ^ (line: 2)
+STR
+DOC ---
+SEQ

py-ruamel-json

 invalid_correct
Traceback (most recent call last):
  File "/yaml/bin/py-ruamel-json", line 19, in <module>
    for doc in ruamel.yaml.load_all(sys.stdin.read(), Loader=ruamel.yaml.Loader):
  File "/python/lib/python3.7/site-packages/ruamel/yaml/main.py", line 976, in load_all
    yield loader._constructor.get_data()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/constructor.py", line 106, in get_data
    return self.construct_document(self.composer.get_node())
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 68, in get_node
    return self.compose_document()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 101, in compose_document
    node = self.compose_node(None, None)
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 136, in compose_node
    node = self.compose_sequence_node(anchor)
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 179, in compose_sequence_node
    while not self.parser.check_event(SequenceEndEvent):
  File "/python/lib/python3.7/site-packages/ruamel/yaml/parser.py", line 140, in check_event
    self.current_event = self.state()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/parser.py", line 506, in parse_block_sequence_first_entry
    return self.parse_block_sequence_entry()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/parser.py", line 512, in parse_block_sequence_entry
    token.move_comment(self.scanner.peek_token())
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 183, in peek_token
    self.fetch_more_tokens()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 275, in fetch_more_tokens
    return self.fetch_block_entry()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 569, in fetch_block_entry
    None, None, 'sequence entries are not allowed here', self.reader.get_mark()
ruamel.yaml.scanner.ScannerError: sequence entries are not allowed here
  in "<unicode string>", line 2, column 11:
    - { y: z }- invalid
              ^ (line: 2)

py-ruamel-py

 invalid_correct
Traceback (most recent call last):
  File "/yaml/bin/py-ruamel-py", line 36, in <module>
    for doc in ruamel.yaml.load_all(sys.stdin.read(), Loader=ruamel.yaml.Loader):
  File "/python/lib/python3.7/site-packages/ruamel/yaml/main.py", line 976, in load_all
    yield loader._constructor.get_data()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/constructor.py", line 106, in get_data
    return self.construct_document(self.composer.get_node())
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 68, in get_node
    return self.compose_document()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 101, in compose_document
    node = self.compose_node(None, None)
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 136, in compose_node
    node = self.compose_sequence_node(anchor)
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 179, in compose_sequence_node
    while not self.parser.check_event(SequenceEndEvent):
  File "/python/lib/python3.7/site-packages/ruamel/yaml/parser.py", line 140, in check_event
    self.current_event = self.state()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/parser.py", line 506, in parse_block_sequence_first_entry
    return self.parse_block_sequence_entry()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/parser.py", line 512, in parse_block_sequence_entry
    token.move_comment(self.scanner.peek_token())
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 183, in peek_token
    self.fetch_more_tokens()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 275, in fetch_more_tokens
    return self.fetch_block_entry()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 569, in fetch_block_entry
    None, None, 'sequence entries are not allowed here', self.reader.get_mark()
ruamel.yaml.scanner.ScannerError: sequence entries are not allowed here
  in "<unicode string>", line 2, column 11:
    - { y: z }- invalid
              ^ (line: 2)

ruby-psych-json

 invalid_correct
/usr/lib/ruby/2.5.0/psych.rb:405:in `parse': (<unknown>): block sequence entries are not allowed in this context at line 2 column 11 (Psych::SyntaxError)
	from /usr/lib/ruby/2.5.0/psych.rb:405:in `parse_stream'
	from /usr/lib/ruby/2.5.0/psych.rb:488:in `load_stream'
	from /yaml/bin/ruby-psych-json:6:in `<main>'