[INFO] cloning repository https://github.com/krista-chan/printer_thing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/krista-chan/printer_thing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrista-chan%2Fprinter_thing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrista-chan%2Fprinter_thing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d142d4df6c575f15c23800a0103cb94bd53b3243
[INFO] checking krista-chan/printer_thing against master#0c478fdfe138a8b09744798c85fe2be657768b00 for pr-139419
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrista-chan%2Fprinter_thing" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] error: Unable to create '/workspace/builds/worker-1-tc1/source/.git/refs/remotes/origin/HEAD.lock': No such file or directory
[INFO] [stderr] fatal: unable to update refs/remotes/origin/HEAD


failed to checkout https://github.com/krista-chan/printer_thing

Caused by:
    command failed: exit status: 128