[INFO] cloning repository https://github.com/mnussbaum/validate-container
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mnussbaum/validate-container" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmnussbaum%2Fvalidate-container", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmnussbaum%2Fvalidate-container'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a4d9966ca185b71f510396fb5c8cdeeb81375f04
[INFO] checking mnussbaum/validate-container against master#d8810e3e2dab96778d20dd6d746ff95465515509 for pr-137033
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmnussbaum%2Fvalidate-container" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] fatal: update_ref failed for ref 'HEAD': cannot update the ref 'refs/heads/master': unable to create directory for '/workspace/builds/worker-0-tc1/source/.git/logs/refs/heads/master': No such file or directory


failed to checkout https://github.com/mnussbaum/validate-container

Caused by:
    command failed: exit status: 128