To repro this locally, run the following line from the root of a 'infra' checkout: ./recipes.py run --properties-file - go_toolchain <<EOF { "$recipe_engine/path": { "cache_dir": "/b/s/w/ir/cache", "temp_dir": "/b/s/w/ir/tmp/rt" }, "$recipe_engine/swarming": { "server": "https://chromium-swarm.appspot.com" }, "gcs_bucket": "fuchsia-build", "repository": "https://fuchsia.googlesource.com/third_party/go", "buildername": "go-x64-linux", "recipe": "go_toolchain", "project": "integration", "buildbucket": { "hostname": "cr-buildbucket.appspot.com", "build": { "created_ts": 1547251925856551, "tags": [ "builder:go-x64-linux", "buildset:commit/git/d659dafb9e9155ce062a8597bc2194cdcce17f2b", "buildset:commit/gitiles/fuchsia.googlesource.com/third_party/go/+/d659dafb9e9155ce062a8597bc2194cdcce17f2b", "gitiles_ref:refs/heads/master", "scheduler_invocation_id:9090012542724817712", "scheduler_job_id:fuchsia/go-x64-linux", "user_agent:luci-scheduler" ], "bucket": "luci.fuchsia.ci", "created_by": "user:luci-scheduler@appspot.gserviceaccount.com", "project": "fuchsia", "id": "8924582480551874672" } }, "$recipe_engine/runtime": { "is_experimental": false, "is_luci": true }, "platform": "linux-amd64", "branch": "refs/heads/master", "bot_id": "fuchsia-debian-16-c4acfc8a-us-central1-c-j5cj", "path_config": "generic", "packages": [ "topaz/packages/buildbot" ], "$recipe_engine/isolated": { "server": "https://isolateserver.appspot.com" }, "remote": "https://fuchsia.googlesource.com/integration", "revision": "d659dafb9e9155ce062a8597bc2194cdcce17f2b" } 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.