git fetch --tags origin refs/tags/v1.2.9
in dir /b/s/w/ir/k/zlib/src:
 allow_subannotations: False
 cmd: ['git', 'fetch', '--tags', 'origin', 'refs/tags/v1.2.9']
 cwd: '/b/s/w/ir/k/zlib/src'
 env: {}
 env_prefixes: {}
 env_suffixes: {}
 infra_step: False
 name_tokens: ('zlib', 'git fetch')
 ok_ret: frozenset([0])
 trigger_specs: ()
full environment:
 Apple_PubSub_Socket_Render: /private/tmp/com.apple.launchd.gMO1fvVz4v/Render
 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: 51823
 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/chrome-bot
 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/8913026468387794432
 LOGDOG_STREAM_PROJECT: fuchsia
 LOGDOG_STREAM_SERVER_PATH: unix:/b/s/w/ir/tmp/ld.sock
 LOGNAME: chrome-bot
 LUCI_CONTEXT: /b/s/w/ir/tmp/luci_context.892317438
 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:/opt/local/bin:/opt/local/sbin:/usr/local/sbin:/usr/local/git/bin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
 PWD: /b/s/w/ir/k
 PYTHONIOENCODING: UTF-8
 PYTHONUNBUFFERED: 1
 SHELL: /bin/bash
 SHLVL: 1
 SSH_AUTH_SOCK: /private/tmp/com.apple.launchd.LFae5vnHsL/Listeners
 SWARMING_BOT_ID: build388-a9
 SWARMING_HEADLESS: 1
 SWARMING_SERVER: https://chromium-swarm.appspot.com
 SWARMING_TASK_ID: 44e91a75d1638611
 TEMP: /b/s/w/ir/tmp/t
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 USER: chrome-bot
 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: 0x1F4:0x0:0x0

From https://fuchsia.googlesource.com/a/third_party/zlib
 * tag               v1.2.9      -> FETCH_HEAD
 * [new tag]         v0.71       -> v0.71
 * [new tag]         v0.79       -> v0.79
 * [new tag]         v0.8        -> v0.8
 * [new tag]         v0.9        -> v0.9
 * [new tag]         v0.91       -> v0.91
 * [new tag]         v0.92       -> v0.92
 * [new tag]         v0.93       -> v0.93
 * [new tag]         v0.94       -> v0.94
 * [new tag]         v0.95       -> v0.95
 * [new tag]         v0.99       -> v0.99
 * [new tag]         v1.0-pre    -> v1.0-pre
 * [new tag]         v1.0.1      -> v1.0.1
 * [new tag]         v1.0.2      -> v1.0.2
 * [new tag]         v1.0.4      -> v1.0.4
 * [new tag]         v1.0.5      -> v1.0.5
 * [new tag]         v1.0.7      -> v1.0.7
 * [new tag]         v1.0.8      -> v1.0.8
 * [new tag]         v1.0.9      -> v1.0.9
 * [new tag]         v1.1.0      -> v1.1.0
 * [new tag]         v1.1.1      -> v1.1.1
 * [new tag]         v1.1.2      -> v1.1.2
 * [new tag]         v1.1.3      -> v1.1.3
 * [new tag]         v1.1.4      -> v1.1.4
 * [new tag]         v1.2.0      -> v1.2.0
 * [new tag]         v1.2.0.1    -> v1.2.0.1
 * [new tag]         v1.2.0.2    -> v1.2.0.2
 * [new tag]         v1.2.0.3    -> v1.2.0.3
 * [new tag]         v1.2.0.4    -> v1.2.0.4
 * [new tag]         v1.2.0.5    -> v1.2.0.5
 * [new tag]         v1.2.0.6    -> v1.2.0.6
 * [new tag]         v1.2.0.7    -> v1.2.0.7
 * [new tag]         v1.2.0.8    -> v1.2.0.8
 * [new tag]         v1.2.1      -> v1.2.1
 * [new tag]         v1.2.1.1    -> v1.2.1.1
 * [new tag]         v1.2.1.2    -> v1.2.1.2
 * [new tag]         v1.2.10     -> v1.2.10
 * [new tag]         v1.2.11     -> v1.2.11
 * [new tag]         v1.2.2      -> v1.2.2
 * [new tag]         v1.2.2.1    -> v1.2.2.1
 * [new tag]         v1.2.2.2    -> v1.2.2.2
 * [new tag]         v1.2.2.3    -> v1.2.2.3
 * [new tag]         v1.2.2.4    -> v1.2.2.4
 * [new tag]         v1.2.3      -> v1.2.3
 * [new tag]         v1.2.3.1    -> v1.2.3.1
 * [new tag]         v1.2.3.2    -> v1.2.3.2
 * [new tag]         v1.2.3.3    -> v1.2.3.3
 * [new tag]         v1.2.3.4    -> v1.2.3.4
 * [new tag]         v1.2.3.5    -> v1.2.3.5
 * [new tag]         v1.2.3.6    -> v1.2.3.6
 * [new tag]         v1.2.3.7    -> v1.2.3.7
 * [new tag]         v1.2.3.8    -> v1.2.3.8
 * [new tag]         v1.2.3.9    -> v1.2.3.9
 * [new tag]         v1.2.4      -> v1.2.4
 * [new tag]         v1.2.4-pre1 -> v1.2.4-pre1
 * [new tag]         v1.2.4-pre2 -> v1.2.4-pre2
 * [new tag]         v1.2.4.1    -> v1.2.4.1
 * [new tag]         v1.2.4.2    -> v1.2.4.2
 * [new tag]         v1.2.4.3    -> v1.2.4.3
 * [new tag]         v1.2.4.4    -> v1.2.4.4
 * [new tag]         v1.2.4.5    -> v1.2.4.5
 * [new tag]         v1.2.5      -> v1.2.5
 * [new tag]         v1.2.5.1    -> v1.2.5.1
 * [new tag]         v1.2.5.2    -> v1.2.5.2
 * [new tag]         v1.2.5.3    -> v1.2.5.3
 * [new tag]         v1.2.6      -> v1.2.6
 * [new tag]         v1.2.6.1    -> v1.2.6.1
 * [new tag]         v1.2.7      -> v1.2.7
 * [new tag]         v1.2.7.1    -> v1.2.7.1
 * [new tag]         v1.2.7.2    -> v1.2.7.2
 * [new tag]         v1.2.7.3    -> v1.2.7.3
 * [new tag]         v1.2.8      -> v1.2.8
 * [new tag]         v1.2.9      -> v1.2.9