[
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    "cmd": [],
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    "cmd": [
      "bb",
      "batch",
      "-host",
      "cr-buildbucket.appspot.com"
    ],
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      "realm": {
        "name": "proj:try"
      },
      "resultdb": {
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          "name": "invocations/build:8945511751514863184",
          "update_token": "token"
        },
        "hostname": "rdbhost"
      }
    },
    "name": "launch builds.schedule",
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    "~followup_annotations": [
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      "@@@STEP_LOG_LINE@json.output@  \"responses\": [@@@",
      "@@@STEP_LOG_LINE@json.output@    {@@@",
      "@@@STEP_LOG_LINE@json.output@      \"scheduleBuild\": {@@@",
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      "@@@STEP_LOG_LINE@json.output@}@@@",
      "@@@STEP_LOG_END@json.output@@@",
      "@@@STEP_LOG_LINE@request@{@@@",
      "@@@STEP_LOG_LINE@request@  \"requests\": [@@@",
      "@@@STEP_LOG_LINE@request@    {@@@",
      "@@@STEP_LOG_LINE@request@      \"scheduleBuild\": {@@@",
      "@@@STEP_LOG_LINE@request@        \"builder\": {@@@",
      "@@@STEP_LOG_LINE@request@          \"bucket\": \"try\", @@@",
      "@@@STEP_LOG_LINE@request@          \"builder\": \"Mac Staging Engine Drone\", @@@",
      "@@@STEP_LOG_LINE@request@          \"project\": \"proj\"@@@",
      "@@@STEP_LOG_LINE@request@        }, @@@",
      "@@@STEP_LOG_LINE@request@        \"exe\": {@@@",
      "@@@STEP_LOG_LINE@request@          \"cipdVersion\": \"refs/heads/main\"@@@",
      "@@@STEP_LOG_LINE@request@        }, @@@",
      "@@@STEP_LOG_LINE@request@        \"experimental\": \"NO\", @@@",
      "@@@STEP_LOG_LINE@request@        \"experiments\": {@@@",
      "@@@STEP_LOG_LINE@request@          \"luci.buildbucket.parent_tracking\": false@@@",
      "@@@STEP_LOG_LINE@request@        }, @@@",
      "@@@STEP_LOG_LINE@request@        \"fields\": \"builder,createTime,createdBy,critical,endTime,id,infra,input,number,output,startTime,status,updateTime\", @@@",
      "@@@STEP_LOG_LINE@request@        \"gerritChanges\": [@@@",
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      "@@@STEP_LOG_LINE@request@            \"host\": \"flutter-review.googlesource.com\", @@@",
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      "@@@STEP_LOG_LINE@request@            \"project\": \"mirrors/engine\"@@@",
      "@@@STEP_LOG_LINE@request@          }@@@",
      "@@@STEP_LOG_LINE@request@        ], @@@",
      "@@@STEP_LOG_LINE@request@        \"gitilesCommit\": {@@@",
      "@@@STEP_LOG_LINE@request@          \"host\": \"flutter.googlesource.com\", @@@",
      "@@@STEP_LOG_LINE@request@          \"id\": \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\", @@@",
      "@@@STEP_LOG_LINE@request@          \"project\": \"mirrors/engine\", @@@",
      "@@@STEP_LOG_LINE@request@          \"ref\": \"refs/heads/main\"@@@",
      "@@@STEP_LOG_LINE@request@        }, @@@",
      "@@@STEP_LOG_LINE@request@        \"priority\": 25, @@@",
      "@@@STEP_LOG_LINE@request@        \"properties\": {@@@",
      "@@@STEP_LOG_LINE@request@          \"archives\": [@@@",
      "@@@STEP_LOG_LINE@request@            {@@@",
      "@@@STEP_LOG_LINE@request@              \"destination\": \"bucket/c.txt\", @@@",
      "@@@STEP_LOG_LINE@request@              \"name\": \"c.txt\", @@@",
      "@@@STEP_LOG_LINE@request@              \"source\": \"/a/b/c.txt\"@@@",
      "@@@STEP_LOG_LINE@request@            }@@@",
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      "@@@STEP_LOG_LINE@request@          \"build\": {@@@",
      "@@@STEP_LOG_LINE@request@            \"generators\": [@@@",
      "@@@STEP_LOG_LINE@request@              {@@@",
      "@@@STEP_LOG_LINE@request@                \"name\": \"generator1\", @@@",
      "@@@STEP_LOG_LINE@request@                \"script\": \"script1.sh\"@@@",
      "@@@STEP_LOG_LINE@request@              }@@@",
      "@@@STEP_LOG_LINE@request@            ], @@@",
      "@@@STEP_LOG_LINE@request@            \"gn\": [@@@",
      "@@@STEP_LOG_LINE@request@              \"--ios\"@@@",
      "@@@STEP_LOG_LINE@request@            ], @@@",
      "@@@STEP_LOG_LINE@request@            \"name\": \"ios_debug\", @@@",
      "@@@STEP_LOG_LINE@request@            \"ninja\": {@@@",
      "@@@STEP_LOG_LINE@request@              \"config\": \"ios_debug\", @@@",
      "@@@STEP_LOG_LINE@request@              \"targets\": []@@@",
      "@@@STEP_LOG_LINE@request@            }@@@",
      "@@@STEP_LOG_LINE@request@          }, @@@",
      "@@@STEP_LOG_LINE@request@          \"builds\": [@@@",
      "@@@STEP_LOG_LINE@request@            {@@@",
      "@@@STEP_LOG_LINE@request@              \"generators\": [@@@",
      "@@@STEP_LOG_LINE@request@                {@@@",
      "@@@STEP_LOG_LINE@request@                  \"name\": \"generator1\", @@@",
      "@@@STEP_LOG_LINE@request@                  \"script\": \"script1.sh\"@@@",
      "@@@STEP_LOG_LINE@request@                }@@@",
      "@@@STEP_LOG_LINE@request@              ], @@@",
      "@@@STEP_LOG_LINE@request@              \"gn\": [@@@",
      "@@@STEP_LOG_LINE@request@                \"--ios\"@@@",
      "@@@STEP_LOG_LINE@request@              ], @@@",
      "@@@STEP_LOG_LINE@request@              \"name\": \"ios_debug\", @@@",
      "@@@STEP_LOG_LINE@request@              \"ninja\": {@@@",
      "@@@STEP_LOG_LINE@request@                \"config\": \"ios_debug\", @@@",
      "@@@STEP_LOG_LINE@request@                \"targets\": []@@@",
      "@@@STEP_LOG_LINE@request@              }@@@",
      "@@@STEP_LOG_LINE@request@            }@@@",
      "@@@STEP_LOG_LINE@request@          ], @@@",
      "@@@STEP_LOG_LINE@request@          \"environment\": \"Staging\", @@@",
      "@@@STEP_LOG_LINE@request@          \"generators\": {@@@",
      "@@@STEP_LOG_LINE@request@            \"tasks\": [@@@",
      "@@@STEP_LOG_LINE@request@              {@@@",
      "@@@STEP_LOG_LINE@request@                \"language\": \"python\", @@@",
      "@@@STEP_LOG_LINE@request@                \"name\": \"Debug-FlutterMacOS.framework\", @@@",
      "@@@STEP_LOG_LINE@request@                \"parameters\": [@@@",
      "@@@STEP_LOG_LINE@request@                  \"--variant\", @@@",
      "@@@STEP_LOG_LINE@request@                  \"host_profile\", @@@",
      "@@@STEP_LOG_LINE@request@                  \"--type\", @@@",
      "@@@STEP_LOG_LINE@request@                  \"engine\", @@@",
      "@@@STEP_LOG_LINE@request@                  \"--engine-capture-core-dump\"@@@",
      "@@@STEP_LOG_LINE@request@                ], @@@",
      "@@@STEP_LOG_LINE@request@                \"script\": \"flutter/sky/tools/create_macos_framework.py\", @@@",
      "@@@STEP_LOG_LINE@request@                \"type\": \"local\"@@@",
      "@@@STEP_LOG_LINE@request@              }@@@",
      "@@@STEP_LOG_LINE@request@            ]@@@",
      "@@@STEP_LOG_LINE@request@          }, @@@",
      "@@@STEP_LOG_LINE@request@          \"recipe\": \"engine_v2/builder\", @@@",
      "@@@STEP_LOG_LINE@request@          \"tests\": []@@@",
      "@@@STEP_LOG_LINE@request@        }, @@@",
      "@@@STEP_LOG_LINE@request@        \"requestId\": \"8945511751514863184-00000000-0000-0000-0000-000000001337\", @@@",
      "@@@STEP_LOG_LINE@request@        \"swarming\": {@@@",
      "@@@STEP_LOG_LINE@request@          \"parentRunId\": \"fake-task-id\"@@@",
      "@@@STEP_LOG_LINE@request@        }, @@@",
      "@@@STEP_LOG_LINE@request@        \"tags\": [@@@",
      "@@@STEP_LOG_LINE@request@          {@@@",
      "@@@STEP_LOG_LINE@request@            \"key\": \"cq_experimental\", @@@",
      "@@@STEP_LOG_LINE@request@            \"value\": \"false\"@@@",
      "@@@STEP_LOG_LINE@request@          }, @@@",
      "@@@STEP_LOG_LINE@request@          {@@@",
      "@@@STEP_LOG_LINE@request@            \"key\": \"parent_buildbucket_id\", @@@",
      "@@@STEP_LOG_LINE@request@            \"value\": \"8945511751514863184\"@@@",
      "@@@STEP_LOG_LINE@request@          }, @@@",
      "@@@STEP_LOG_LINE@request@          {@@@",
      "@@@STEP_LOG_LINE@request@            \"key\": \"user_agent\", @@@",
      "@@@STEP_LOG_LINE@request@            \"value\": \"recipe\"@@@",
      "@@@STEP_LOG_LINE@request@          }@@@",
      "@@@STEP_LOG_LINE@request@        ]@@@",
      "@@@STEP_LOG_LINE@request@      }@@@",
      "@@@STEP_LOG_LINE@request@    }@@@",
      "@@@STEP_LOG_LINE@request@  ]@@@",
      "@@@STEP_LOG_LINE@request@}@@@",
      "@@@STEP_LOG_END@request@@@",
      "@@@STEP_LINK@8945511751514863186@https://cr-buildbucket.appspot.com/build/8945511751514863186@@@"
    ]
  },
  {
    "cmd": [],
    "name": "collect builds"
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  {
    "cmd": [],
    "name": "collect builds.collect",
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@1@@@"
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  },
  {
    "cmd": [
      "bb",
      "collect",
      "-host",
      "cr-buildbucket.appspot.com",
      "-interval",
      "20s",
      "8945511751514863186"
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    "infra_step": true,
    "luci_context": {
      "realm": {
        "name": "proj:try"
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      "resultdb": {
        "current_invocation": {
          "name": "invocations/build:8945511751514863184",
          "update_token": "token"
        },
        "hostname": "rdbhost"
      }
    },
    "name": "collect builds.collect.wait",
    "timeout": 86400,
    "~followup_annotations": [
      "@@@STEP_NEST_LEVEL@2@@@"
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  },
  {
    "cmd": [
      "bb",
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      "-host",
      "cr-buildbucket.appspot.com"
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    "luci_context": {
      "realm": {
        "name": "proj:try"
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      "resultdb": {
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          "name": "invocations/build:8945511751514863184",
          "update_token": "token"
        },
        "hostname": "rdbhost"
      }
    },
    "name": "collect builds.collect.get",
    "stdin": "{\"requests\": [{\"getBuild\": {\"fields\": \"builder,createTime,createdBy,critical,endTime,id,infra,infra.swarming.taskId,input,number,output,startTime,status,summaryMarkdown,updateTime\", \"id\": \"8945511751514863186\"}}]}",
    "~followup_annotations": [
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      "@@@STEP_LOG_LINE@json.output@{@@@",
      "@@@STEP_LOG_LINE@json.output@  \"responses\": [@@@",
      "@@@STEP_LOG_LINE@json.output@    {@@@",
      "@@@STEP_LOG_LINE@json.output@      \"getBuild\": {@@@",
      "@@@STEP_LOG_LINE@json.output@        \"builder\": {@@@",
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      "@@@STEP_LOG_LINE@json.output@          \"builder\": \"builder-subbuild1\", @@@",
      "@@@STEP_LOG_LINE@json.output@          \"project\": \"fuchsia\"@@@",
      "@@@STEP_LOG_LINE@json.output@        }, @@@",
      "@@@STEP_LOG_LINE@json.output@        \"createTime\": \"2018-05-25T23:50:17Z\", @@@",
      "@@@STEP_LOG_LINE@json.output@        \"createdBy\": \"project:fuchsia\", @@@",
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      "@@@STEP_LOG_LINE@json.output@              \"host\": \"chromium-review.googlesource.com\", @@@",
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      "@@@STEP_LOG_LINE@json.output@            \"key\": \"cq_experimental\", @@@",
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      "@@@STEP_LOG_LINE@json.output@          }@@@",
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      "@@@STEP_LOG_LINE@json.output@  ]@@@",
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      "@@@STEP_LOG_END@json.output@@@",
      "@@@STEP_LOG_LINE@request@{@@@",
      "@@@STEP_LOG_LINE@request@  \"requests\": [@@@",
      "@@@STEP_LOG_LINE@request@    {@@@",
      "@@@STEP_LOG_LINE@request@      \"getBuild\": {@@@",
      "@@@STEP_LOG_LINE@request@        \"fields\": \"builder,createTime,createdBy,critical,endTime,id,infra,infra.swarming.taskId,input,number,output,startTime,status,summaryMarkdown,updateTime\", @@@",
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      "@@@STEP_LOG_LINE@request@  ]@@@",
      "@@@STEP_LOG_LINE@request@}@@@",
      "@@@STEP_LOG_END@request@@@",
      "@@@STEP_LINK@8945511751514863186@https://cr-buildbucket.appspot.com/build/8945511751514863186@@@"
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  {
    "cmd": [],
    "name": "display builds"
  },
  {
    "cmd": [],
    "name": "display builds.builder-subbuild1",
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      "@@@STEP_NEST_LEVEL@1@@@",
      "@@@STEP_LINK@8945511751514863186@https://cr-buildbucket.appspot.com/build/8945511751514863186@@@"
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  },
  {
    "cmd": [],
    "name": "launch tests"
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  {
    "cmd": [],
    "name": "collect tests"
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  {
    "cmd": [],
    "name": "display tests"
  },
  {
    "cmd": [
      "vpython3",
      "-u",
      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
      "--json-output",
      "/path/to/tmp/json",
      "ensure-directory",
      "--mode",
      "0777",
      "[CACHE]/builder"
    ],
    "infra_step": true,
    "luci_context": {
      "realm": {
        "name": "proj:try"
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      "resultdb": {
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          "name": "invocations/build:8945511751514863184",
          "update_token": "token"
        },
        "hostname": "rdbhost"
      }
    },
    "name": "Ensure full engine checkout folder"
  },
  {
    "cmd": [],
    "name": "Checkout source code"
  },
  {
    "cmd": [
      "vpython3",
      "-u",
      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
      "--json-output",
      "/path/to/tmp/json",
      "rmcontents",
      "[CACHE]/builder"
    ],
    "env_suffixes": {
      "DEPOT_TOOLS_UPDATE": [
        "0"
      ],
      "PATH": [
        "RECIPE_REPO[depot_tools]"
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    },
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    "luci_context": {
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        "name": "proj:try"
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      "resultdb": {
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          "update_token": "token"
        },
        "hostname": "rdbhost"
      }
    },
    "name": "Checkout source code.Clobber cache",
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      "@@@STEP_NEST_LEVEL@1@@@"
    ]
  },
  {
    "cmd": [
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      "--json-output",
      "/path/to/tmp/json",
      "rmtree",
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        "hostname": "rdbhost"
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      "https://flutter-review.googlesource.com",
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      "/path/to/tmp/json",
      "--limit",
      "1",
      "-p",
      "change=123456",
      "-o",
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      "-o",
      "DOWNLOAD_COMMANDS"
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    "cwd": "[CACHE]/builder",
    "env": {
      "ANDROID_HOME": "[CACHE]/builder/src/third_party/android_tools/sdk",
      "DEPOT_TOOLS": "RECIPE_REPO[depot_tools]",
      "ENGINE_CHECKOUT_PATH": "[CACHE]/builder",
      "GIT_BRANCH": "",
      "LUCI_BRANCH": "",
      "LUCI_CI": "True",
      "LUCI_PR": "",
      "LUCI_WORKDIR": "[START_DIR]",
      "OS": "darwin",
      "PATH": "<PATH>:RECIPE_REPO[depot_tools]",
      "REVISION": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
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    "env_prefixes": {
      "PATH": [
        "[CACHE]/builder/src/third_party/dart/tools/sdks/dart-sdk/bin"
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    "env_suffixes": {
      "DEPOT_TOOLS_UPDATE": [
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