To repro this locally, run the following line from the root of a 'infra' checkout: ./recipes.py run --properties-file - zircon <<EOF { "$recipe_engine/path": { "cache_dir": "/b/s/w/ir/cache", "temp_dir": "/b/s/w/ir/tmp/rt" }, "$recipe_engine/runtime": { "is_experimental": false, "is_luci": true }, "bot_id": "fuchsia-debian-16-c4acfc8a-us-central1-c-8gbb", "gcs_bucket": "fuchsia-build", "target": "x64", "repository": "https://fuchsia.googlesource.com/zircon", "buildername": "zircon-x64-clang-no_opt-build_only", "run_tests": false, "make_args": [ "DEBUG_HARD=1" ], "recipe": "zircon", "manifest": "zircon/zircon", "project": "integration", "buildbucket": { "hostname": "cr-buildbucket.appspot.com", "build": { "created_ts": 1544150315665928, "tags": [ "builder:zircon-x64-clang-no_opt-build_only", "buildset:commit/git/f227f8248fd9a68fe7b07797da7d737848ffdaa3", "buildset:commit/gitiles/fuchsia.googlesource.com/zircon/+/f227f8248fd9a68fe7b07797da7d737848ffdaa3", "gitiles_ref:refs/heads/master", "scheduler_invocation_id:9093264816755470160", "scheduler_job_id:fuchsia/zircon-x64-clang-no_opt-build_only", "user_agent:luci-scheduler" ], "bucket": "luci.fuchsia.ci", "created_by": "user:luci-scheduler@appspot.gserviceaccount.com", "project": "fuchsia", "id": "8927834754559042560" } }, "branch": "refs/heads/master", "path_config": "generic", "toolchain": "clang", "packages": [ "topaz/packages/buildbot" ], "remote": "https://fuchsia.googlesource.com/integration", "revision": "f227f8248fd9a68fe7b07797da7d737848ffdaa3" } 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.