[INFO] cloning repository https://github.com/sh1nduu/toy_jvm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sh1nduu/toy_jvm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsh1nduu%2Ftoy_jvm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsh1nduu%2Ftoy_jvm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4086fddab1035939eaa886e145283d3eac99ab34
[INFO] checking sh1nduu/toy_jvm against master#9f48dedc9763334a587c66558974635807a113ed for pr-137394
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsh1nduu%2Ftoy_jvm" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-5-tc1/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0'


failed to checkout https://github.com/sh1nduu/toy_jvm

Caused by:
    command failed: exit status: 128