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    "cmd": [
      "top",
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    "infra_step": true,
    "luci_context": {
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        "name": "proj:try"
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      "resultdb": {
        "current_invocation": {
          "name": "invocations/build:8945511751514863184",
          "update_token": "token"
        },
        "hostname": "rdbhost"
      }
    },
    "name": "OS info"
  },
  {
    "cmd": [
      "xattr",
      "/opt/s/w/ir/cipd_bin_packages/python"
    ],
    "infra_step": true,
    "luci_context": {
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    "name": "python xattr info"
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  {
    "cmd": [
      "xattr",
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    "infra_step": true,
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        "hostname": "rdbhost"
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    },
    "name": "git xattr info"
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    "cmd": [
      "vpython3",
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      "rmtree",
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    "infra_step": true,
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        "hostname": "rdbhost"
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    },
    "name": "Clobber build output"
  },
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    "cmd": [
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      "--json-output",
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      "ensure-directory",
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    "infra_step": true,
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        "hostname": "rdbhost"
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    },
    "name": "Ensure checkout cache"
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  {
    "cmd": [],
    "name": "Checkout source code"
  },
  {
    "cmd": [
      "vpython3",
      "RECIPE_REPO[depot_tools]/gerrit_client.py",
      "changes",
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      "--json_file",
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      "--limit",
      "1",
      "-p",
      "change=123456",
      "-o",
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      "-o",
      "DOWNLOAD_COMMANDS"
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      "ENGINE_PATH": "[CACHE]/builder",
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      "LUCI_BRANCH": "",
      "LUCI_CI": "True",
      "LUCI_PR": "",
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      "PATH": [
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    },
    "name": "Checkout source code.gerrit fetch current CL info",
    "timeout": 60,
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      "@@@STEP_LOG_LINE@json.output@[@@@",
      "@@@STEP_LOG_LINE@json.output@  {@@@",
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      "@@@STEP_LOG_LINE@json.output@    \"owner\": {@@@",
      "@@@STEP_LOG_LINE@json.output@      \"name\": \"John Doe\"@@@",
      "@@@STEP_LOG_LINE@json.output@    }, @@@",
      "@@@STEP_LOG_LINE@json.output@    \"revisions\": {@@@",
      "@@@STEP_LOG_LINE@json.output@      \"184ebe53805e102605d11f6b143486d15c23a09c\": {@@@",
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      "@@@STEP_LOG_LINE@json.output@      }@@@",
      "@@@STEP_LOG_LINE@json.output@    }@@@",
      "@@@STEP_LOG_LINE@json.output@  }@@@",
      "@@@STEP_LOG_LINE@json.output@]@@@",
      "@@@STEP_LOG_END@json.output@@@"
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    "cmd": [
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      "--patch_root",
      "src/flutter",
      "--revision_mapping_file",
      "{\"got_engine_revision\": \"src/flutter\"}",
      "--git-cache-dir",
      "[CACHE]/git",
      "--cleanup-dir",
      "[CLEANUP]/bot_update",
      "--output_json",
      "/path/to/tmp/json",
      "--patch_ref",
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      "--revision",
      "src/flutter@refs/heads/main",
      "--refs",
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      "refs/heads/main"
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      "@@@STEP_TEXT@Some step text@@@",
      "@@@STEP_LOG_LINE@json.output@{@@@",
      "@@@STEP_LOG_LINE@json.output@  \"did_run\": true, @@@",
      "@@@STEP_LOG_LINE@json.output@  \"fixed_revisions\": {@@@",
      "@@@STEP_LOG_LINE@json.output@    \"src/flutter\": \"refs/heads/main\"@@@",
      "@@@STEP_LOG_LINE@json.output@  }, @@@",
      "@@@STEP_LOG_LINE@json.output@  \"manifest\": {@@@",
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      "@@@STEP_LOG_LINE@json.output@    \"got_engine_revision_cp\": \"refs/heads/main@{#84512}\", @@@",
      "@@@STEP_LOG_LINE@json.output@    \"got_revision\": \"9221bca00ddbd888260084def81f09543281b952\"@@@",
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      "@@@STEP_LOG_LINE@json.output@  \"source_manifest\": {@@@",
      "@@@STEP_LOG_LINE@json.output@    \"directories\": {@@@",
      "@@@STEP_LOG_LINE@json.output@      \"src/flutter\": {@@@",
      "@@@STEP_LOG_LINE@json.output@        \"git_checkout\": {@@@",
      "@@@STEP_LOG_LINE@json.output@          \"repo_url\": \"https://fake.org/src/flutter.git\", @@@",
      "@@@STEP_LOG_LINE@json.output@          \"revision\": \"e1f32bac24d72ebe0a5713009ae850c6320e7c7d\"@@@",
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      "@@@STEP_LOG_LINE@json.output@      }@@@",
      "@@@STEP_LOG_LINE@json.output@    }, @@@",
      "@@@STEP_LOG_LINE@json.output@    \"version\": 0@@@",
      "@@@STEP_LOG_LINE@json.output@  }, @@@",
      "@@@STEP_LOG_LINE@json.output@  \"step_text\": \"Some step text\"@@@",
      "@@@STEP_LOG_LINE@json.output@}@@@",
      "@@@STEP_LOG_END@json.output@@@",
      "@@@SET_BUILD_PROPERTY@got_engine_revision@\"e1f32bac24d72ebe0a5713009ae850c6320e7c7d\"@@@",
      "@@@SET_BUILD_PROPERTY@got_engine_revision_cp@\"refs/heads/main@{#84512}\"@@@",
      "@@@SET_BUILD_PROPERTY@got_revision@\"9221bca00ddbd888260084def81f09543281b952\"@@@"
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    "cmd": [
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      "GIT_BRANCH": "",
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      "LUCI_PR": "",
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    "name": "Checkout source code.gclient runhooks",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@"
    ]
  },
  {
    "cmd": [
      "[CACHE]/builder/src/flutter/lib/web_ui/dev/felt",
      "check-licenses"
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      "DEPOT_TOOLS": "RECIPE_REPO[depot_tools]",
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      "ENGINE_PATH": "[CACHE]/builder",
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    "name": "test: Run tests on macOS Safari"
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    "cmd": [],
    "name": "Killing Processes"
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    "cmd": [
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      "DEPOT_TOOLS": "RECIPE_REPO[depot_tools]",
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      "ENGINE_PATH": "[CACHE]/builder",
      "GIT_BRANCH": "",
      "LUCI_BRANCH": "",
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    "cmd": [
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      "ENGINE_PATH": "[CACHE]/builder",
      "GIT_BRANCH": "",
      "LUCI_BRANCH": "",
      "LUCI_CI": "True",
      "LUCI_PR": "",
      "LUCI_WORKDIR": "[START_DIR]",
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    "name": "Killing Processes.kill flutter",
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    "cmd": [
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      "ENGINE_PATH": "[CACHE]/builder",
      "GIT_BRANCH": "",
      "LUCI_BRANCH": "",
      "LUCI_CI": "True",
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      "LUCI_WORKDIR": "[START_DIR]",
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    "name": "Killing Processes.kill Chrome",
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    "cmd": [
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      "ENGINE_PATH": "[CACHE]/builder",
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  },
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  {
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]