[INFO] cloning repository https://github.com/malept/hasbuildpackbundlerupgradedyet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/malept/hasbuildpackbundlerupgradedyet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmalept%2Fhasbuildpackbundlerupgradedyet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmalept%2Fhasbuildpackbundlerupgradedyet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4649ed26251c6c5b2e6e411dde2dbc6774c94aa9
[INFO] checking malept/hasbuildpackbundlerupgradedyet against master#a9e7b30487235621751cc628f170c0f15fb215c4 for pr-136539
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmalept%2Fhasbuildpackbundlerupgradedyet" "/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] error: Unable to create '/workspace/builds/worker-0-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/malept/hasbuildpackbundlerupgradedyet

Caused by:
    command failed: exit status: 128