[
  {
    "cmd": [],
    "name": "nest",
    "~followup_annotations": [
      "@@@STEP_LOG_LINE@symbolized log@blah@@@",
      "@@@STEP_LOG_LINE@symbolized log@blah@@@",
      "@@@STEP_LOG_END@symbolized log@@@"
    ]
  },
  {
    "cmd": [
      "symbolize-tool",
      "-llvm-symbolizer-restart-interval",
      "2",
      "-level",
      "up",
      "-build-id-dir",
      "a",
      "-build-id-dir",
      "b",
      "-build-id-dir",
      "c",
      "-build-id-dir",
      "d",
      "-build-id-dir",
      "e",
      "-llvm-symbolizer",
      "llvm-symbolizer",
      "-json-output",
      "/path/to/tmp/json"
    ],
    "infra_step": true,
    "name": "nest.symbolize logs",
    "stdin": "path/to/data",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@",
      "@@@STEP_LOG_LINE@json.output[symbolizer-output.json]@{}@@@",
      "@@@STEP_LOG_END@json.output[symbolizer-output.json]@@@"
    ]
  },
  {
    "name": "$result"
  }
]