[INFO] cloning repository https://github.com/djhunter67/rust_grading
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/djhunter67/rust_grading" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjhunter67%2Frust_grading", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjhunter67%2Frust_grading'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ab61c262469ca62def5e88e2e49668610ccb70f5
[INFO] checking djhunter67/rust_grading against master#cb06d12710575a0d7ff71d6fe108f3bcff4f9195 for pr-128425-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjhunter67%2Frust_grading" "/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 'remote.origin.url' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjhunter67%2Frust_grading'


failed to checkout https://github.com/djhunter67/rust_grading

Caused by:
    command failed: exit status: 128