[INFO] cloning repository https://github.com/magmast/mill
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/magmast/mill" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmagmast%2Fmill", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmagmast%2Fmill'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9b765184b99603277c13aa41a2fc86882e5e8e08
[INFO] checking magmast/mill against master#fc5af1813307d25a84d633f21e2e53c9376eb547 for pr-144386
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmagmast%2Fmill" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] fatal: update_ref failed for ref 'HEAD': cannot update the ref 'refs/heads/main': unable to create directory for '/workspace/builds/worker-6-tc1/source/.git/logs/refs/heads/main': No such file or directory


failed to checkout https://github.com/magmast/mill

Caused by:
    command failed: exit status: 128