[INFO] cloning repository https://github.com/jayong93/2019-stresstest
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jayong93/2019-stresstest" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjayong93%2F2019-stresstest", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjayong93%2F2019-stresstest'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 79b05610b374d27d86b03249a5becc23f9d1ea0e
[INFO] building jayong93/2019-stresstest against master#ad211ced81509462cdfe4c29ed10f97279a0acae for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjayong93%2F2019-stresstest" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-4-tc1/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'core.filemode' to 'true'


ExecutionFailed(ExitStatus(unix_wait_status(32768)))

failed to checkout https://github.com/jayong93/2019-stresstest