[INFO] cloning repository https://github.com/jdrobertso/rectangles
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jdrobertso/rectangles" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjdrobertso%2Frectangles", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjdrobertso%2Frectangles'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de8d5e32ba9ec96b1f3ca73b23d6b8339faa8a9a
[INFO] checking jdrobertso/rectangles against master#0c478fdfe138a8b09744798c85fe2be657768b00 for pr-139419
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjdrobertso%2Frectangles" "/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/jdrobertso/rectangles

Caused by:
    command failed: exit status: 128