git checkout -f FETCH_HEAD
in dir /b/s/w/ir/k/depot_tools:
 allow_subannotations: False
 base_name: 'depot_tools.git checkout'
 cmd: ['git', 'checkout', '-f', 'FETCH_HEAD']
 cwd: '/b/s/w/ir/k/depot_tools'
 env: {}
 env_prefixes: {}
 env_suffixes: {}
 infra_step: True
 name: 'depot_tools.git checkout'
 nest_level: 1
 ok_ret: frozenset([0])
 trigger_specs: ()
full environment:
 BOTO_CONFIG: /b/s/w/ir/tmp/gsutil_task/.boto
 BUILDBUCKET_EXPERIMENTAL: FALSE
 CIPD_CACHE_DIR: /b/s/cipd_cache/cache
 CIPD_PROTOCOL: v2
 DEVSHELL_CLIENT_PORT: 63552
 DOCKER_CONFIG: /b/s/w/ir/tmp/docker_cfg_task
 DOCKER_TMPDIR: /b/s/w/ir/tmp/docker_tmp_task
 GIT_CONFIG_NOSYSTEM: 1
 GIT_TERMINAL_PROMPT: 0
 HOME: /Users/swarming
 INFRA_GIT_WRAPPER_HOME: /b/s/w/ir/tmp/git_home_task
 LOGDOG_COORDINATOR_HOST: logs.chromium.org
 LOGDOG_STREAM_PREFIX: buildbucket/cr-buildbucket.appspot.com/8919046668620082592
 LOGDOG_STREAM_PROJECT: fuchsia
 LOGDOG_STREAM_SERVER_PATH: unix:/b/s/w/ir/tmp/ld.sock
 LOGNAME: swarming
 LUCI_CONTEXT: /b/s/w/it8AzlZ2/luci_context.459298529
 MAC_CHROMIUM_TMPDIR: /b/s/w/ir/tmp/t
 NO_GCE_CHECK: False
 PATH: /b/s/w/ir/cipd_bin_packages:/b/s/w/ir/cipd_bin_packages/bin:/b/s/cipd_cache/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin
 PWD: /b/s/w/ir/k
 PYTHONIOENCODING: UTF-8
 PYTHONUNBUFFERED: 1
 SHELL: /bin/bash
 SHLVL: 1
 SWARMING_BOT_ID: fuchsia-ci-mac-lab01-1001
 SWARMING_EXTERNAL_BOT_SETUP: 1
 SWARMING_HEADLESS: 1
 SWARMING_SERVER: https://chromium-swarm.appspot.com
 SWARMING_TASK_ID: 4392e4f78e448311
 TEMP: /b/s/w/ir/tmp/t
 TEMPDIR: /b/s/w/ir/tmp/t
 TMP: /b/s/w/ir/tmp/t
 TMPDIR: /b/s/w/ir/tmp/t
 USER: swarming
 VERSIONER_PYTHON_PREFER_32_BIT: no
 VERSIONER_PYTHON_VERSION: 2.7
 VPYTHON_VIRTUALENV_ROOT: /b/s/w/ir/cache/vpython
 XPC_FLAGS: 0x0
 XPC_SERVICE_NAME: 0
 _: /b/s/w/ir/cipd_bin_packages/vpython
 __CF_USER_TEXT_ENCODING: 0x1F6:0:0

Note: checking out 'FETCH_HEAD'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:

  git checkout -b <new-branch-name>

HEAD is now at 40c19421 Disabling bypass CQ warning message for refs/branch-heads/* of chromium/src.