[INFO] cloning repository https://github.com/toannhu96/rust_week1_homework
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/toannhu96/rust_week1_homework" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftoannhu96%2Frust_week1_homework", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftoannhu96%2Frust_week1_homework'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0b2468138073b5450428e54de502503f1f3f4bac
[INFO] checking toannhu96/rust_week1_homework against master#18a029cfe8e761533634bda8fe8a14e30280a21b for pr-139646
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftoannhu96%2Frust_week1_homework" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-1-tc1/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0'


failed to checkout https://github.com/toannhu96/rust_week1_homework

Caused by:
    command failed: exit status: 128