To repro this locally, run the following line from the root of a 'infra' checkout: ./recipes.py run --properties-file - infra <<EOF { "tryjob": true, "$recipe_engine/swarming": { "server": "https://chromium-swarm.appspot.com" }, "recipe": "infra", "patch_project": "infra/infra", "category": "cq", "patch_gerrit_url": "https://fuchsia-review.googlesource.com", "patch_repository_url": "https://fuchsia.googlesource.com/infra/infra", "patch_ref": "refs/changes/02/237402/2", "attempt_start_ts": 1546534706000000, "blamelist": [ "kjharland@google.com" ], "$recipe_engine/isolated": { "server": "https://isolateserver.appspot.com" }, "revision": "HEAD", "$recipe_engine/path": { "cache_dir": "/b/s/w/ir/cache", "temp_dir": "/b/s/w/ir/tmp/rt" }, "patch_set": 2, "repository": "https://fuchsia.googlesource.com/infra/infra", "buildername": "infra", "patch_storage": "gerrit", "$recipe_engine/runtime": { "is_experimental": false, "is_luci": true }, "buildbucket": { "hostname": "cr-buildbucket.appspot.com", "build": { "created_ts": 1546534727618581, "tags": [ "builder:infra", "buildset:patch/gerrit/fuchsia-review.googlesource.com/237402/2", "cq_experimental:false", "user_agent:cq" ], "bucket": "luci.fuchsia.try", "created_by": "user:5071639625-1lppvbtck1morgivc6sq4dul7klu27sd@developer.gserviceaccount.com", "project": "fuchsia", "id": "8925334517411164688" } }, "reason": "CQ", "patch_issue": 237402, "packages": [ "topaz/packages/buildbot" ], "remote": "https://fuchsia.googlesource.com/infra/infra", "manifest": "manifest", "project": "infra/infra", "path_config": "generic", "bot_id": "fuchsia-debian-16-c4acfc8a-us-central1-c-6hfk" } EOF To run on Windows, you can put the JSON in a file and redirect the contents of the file into run_recipe.py, with the < operator.