[INFO] cloning repository https://github.com/tinrab/rusty-neuron
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tinrab/rusty-neuron" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftinrab%2Frusty-neuron", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftinrab%2Frusty-neuron'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2ee3e95a1a92a92916152a878f6657a64e5590a9
[INFO] checking tinrab/rusty-neuron against master#b44e14f762fd4062faeba97f8f2bc470298ec1ac for pr-135331
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftinrab%2Frusty-neuron" "/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.repositoryformatversion' to '0'


ExecutionFailed(ExitStatus(unix_wait_status(32768)))

failed to checkout https://github.com/tinrab/rusty-neuron