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    "infra_step": true,
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      "@@@STEP_LOG_LINE@diff (without hashes)@+        foo = 6@@@",
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    "cmd": [
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      "[START_DIR]/cipd_tool/infra/tools/luci/gerrit/0e548aa33f8113a45a5b3b62201e114e98e63d00f97296912380138f44597b07/gerrit",
      "change-query",
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      "https://host-review.googlesource.com",
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      "{\"params\": {\"o\": [\"CURRENT_COMMIT\", \"CURRENT_REVISION\", \"MESSAGES\", \"DETAILED_ACCOUNTS\"], \"q\": \"change:manifest~main~Iedd57fec672452f50f2a157d4e40964889f99847\"}}",
      "-output",
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    "name": "check for identical roll",
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      "@@@STEP_LOG_LINE@json.input@    \"o\": [@@@",
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      "@@@STEP_LOG_LINE@json.input@    \"q\": \"change:manifest~main~Iedd57fec672452f50f2a157d4e40964889f99847\"@@@",
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      "@@@STEP_LOG_END@json.input@@@"
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    "cmd": [
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      "[roll c3] foo\nbar\n\nhttps://pigweed.googlesource.com/pigweed/pigweed\nc3 Rolled-Commits: main..hash-from-speci\nRoller-URL: https://ci.chromium.org/b/0\nCQ-Do-Not-Cancel-Tryjobs: true\nChange-Id: Iedd57fec672452f50f2a157d4e40964889f99847",
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      "@@@STEP_LOG_LINE@json.output@        \"email\": \"foo@luci-project-accounts.iam.gserviceaccount.com\"@@@",
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      "@@@STEP_LOG_LINE@json.input@{@@@",
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      "https://host-review.googlesource.com",
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      "{\"change_id\": \"manifest~main~Iedd57fec672452f50f2a157d4e40964889f99847\", \"input\": {\"message\": \"Dry run passed.\"}}",
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      "@@@STEP_LOG_LINE@json.input@{@@@",
      "@@@STEP_LOG_LINE@json.input@  \"change_id\": \"manifest~main~Iedd57fec672452f50f2a157d4e40964889f99847\",@@@",
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      "@@@STEP_LOG_LINE@json.input@  }@@@",
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    ]
  },
  {
    "name": "$result",
    "summaryMarkdown": "Dry run succeeded. [gerrit link](https://host-review.googlesource.com/q/manifest~main~Iedd57fec672452f50f2a157d4e40964889f99847)"
  }
]