[INFO] cloning repository https://github.com/dkarter/gr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dkarter/gr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkarter%2Fgr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkarter%2Fgr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c313c9cef93e6d47af4d37a25410be3eb94f343
[INFO] checking dkarter/gr against master#f5d3fe273b8b9e7125bf8856d44793b6cc4b6735 for pr-139587-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkarter%2Fgr" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-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-7-tc1/source/.git/logs/refs/heads/master': No such file or directory


failed to checkout https://github.com/dkarter/gr

Caused by:
    command failed: exit status: 128