[INFO] cloning repository https://github.com/untoldwind/rustdeck
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/untoldwind/rustdeck" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funtoldwind%2Frustdeck", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funtoldwind%2Frustdeck'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cda598344be04fe46af36a888b58bd6150ea4524
[INFO] checking untoldwind/rustdeck against master#19f42cb9bb65555e7d95dab7d17573ae6c5d634c for pr-139087
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funtoldwind%2Frustdeck" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-3-tc1/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0'


failed to checkout https://github.com/untoldwind/rustdeck

Caused by:
    command failed: exit status: 128