list index out of range: self.NAMES[index]

[williballenthin]

ERROR:lint:failed to extract capabilities: packed with GoPacker /Volumes/local-data/code/capa/scripts/../tests/data/4122acca2f9ea98fc3f3ad040688e4ce.exe_ list index out of range                                                                                                    
Traceback (most recent call last):
  File "/Volumes/local-data/code/capa/scripts/lint.py", line 342, in check_rule
    capabilities = get_sample_capabilities(ctx, path)
  File "/Volumes/local-data/code/capa/scripts/lint.py", line 301, in get_sample_capabilities
    capabilities, _ = capa.main.find_capabilities(ctx.rules, extractor, disable_progress=True)
  File "/Volumes/local-data/code/capa/capa/main.py", line 250, in find_capabilities
    function_matches, bb_matches, insn_matches, feature_count = find_code_capabilities(ruleset, extractor, f)
  File "/Volumes/local-data/code/capa/capa/main.py", line 176, in find_code_capabilities
    features, bmatches, imatches = find_basic_block_capabilities(ruleset, extractor, f, bb)
  File "/Volumes/local-data/code/capa/capa/main.py", line 132, in find_basic_block_capabilities
    ifeatures, imatches = find_instruction_capabilities(ruleset, extractor, f, bb, insn)
  File "/Volumes/local-data/code/capa/capa/main.py", line 99, in find_instruction_capabilities
    for feature, va in itertools.chain(
  File "/Volumes/local-data/code/capa/capa/features/extractors/viv/extractor.py", line 78, in extract_insn_features
    yield from capa.features.extractors.viv.insn.extract_features(f, bb, insn)
  File "/Volumes/local-data/code/capa/capa/features/extractors/viv/insn.py", line 637, in extract_features
    for feature, va in insn_handler(f, bb, insn):
  File "/Volumes/local-data/code/capa/capa/features/extractors/viv/insn.py", line 613, in extract_operand_features
    for feature, va in op_handler(f, bb, insn, i, oper):
  File "/Volumes/local-data/code/capa/capa/features/extractors/viv/insn.py", line 540, in extract_op_number_features
    yield OperandNumber(i, v), insn.va
  File "/Volumes/local-data/code/capa/capa/features/insn.py", line 72, in __init__
    self.name = self.NAMES[index]
IndexError: list index out of range

[williballenthin]

fixed in 58acc9c