{
  "completed_at_utc": "2026-11-02T23:13:17.284442+00:00",
  "environment": {
    "os": "Linux",
    "kernel": "6.8.0-147-generic",
    "python": "3.12.3",
    "flock": "flock from util-linux 2.39.3",
    "timeout": "timeout (GNU coreutils) 9.4"
  },
  "workload": "Synthetic start/end JSON records and bounded sleeps only",
  "scheduler_executed": false,
  "network_calls": false,
  "cron_modified": false,
  "cases": [
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      "holder_s": 0.8,
      "flock_options": [],
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      "expected_exit": 0,
      "expected_events": "after_holder",
      "contender": {
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        {
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      "lock_reacquired_after_case": true,
      "passed": true
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    {
      "case": "skip_busy",
      "holder_s": 0.8,
      "flock_options": [
        "-n",
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      "expected_exit": 75,
      "expected_events": "never_started",
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        "exit_code": 75,
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        "stdout": "",
        "stderr": ""
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        },
        {
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          "utc": "2026-11-02T23:13:13.916582+00:00"
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      "lock_reacquired_after_case": true,
      "passed": true
    },
    {
      "case": "wait_expires",
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        "-w",
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      "lock_reacquired_after_case": true,
      "passed": true
    },
    {
      "case": "wait_is_not_runtime",
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      "flock_options": [
        "-w",
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      "expected_exit": 0,
      "expected_events": "long_worker",
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        }
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      "passed": true
    },
    {
      "case": "execution_timeout",
      "holder_s": null,
      "flock_options": [],
      "worker_delay_s": 0.8,
      "expected_exit": 124,
      "expected_events": "started_not_finished",
      "contender": {
        "exit_code": 124,
        "elapsed_s": 0.1550533298868686,
        "stdout": "",
        "stderr": ""
      },
      "holder": null,
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          "utc": "2026-11-02T23:13:16.119194+00:00"
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      ],
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    },
    {
      "case": "timeout_includes_wait",
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      "expected_events": "never_started",
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          "utc": "2026-11-02T23:13:17.122030+00:00"
        }
      ],
      "lock_reacquired_after_case": true,
      "passed": true
    },
    {
      "case": "worker_failure",
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        "elapsed_s": 0.0888135398272425,
        "stdout": "",
        "stderr": ""
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        },
        {
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        }
      ],
      "lock_reacquired_after_case": true,
      "passed": true
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  ],
  "passed": true,
  "limits": "One local Linux filesystem; no real cron daemon, fairness, multi-host locks, child-daemon inheritance, retries, production side effects or performance conclusions."
}