[INFO] cloning repository https://github.com/donaghylennon/minesweeper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/donaghylennon/minesweeper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdonaghylennon%2Fminesweeper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdonaghylennon%2Fminesweeper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56b3194f37c4287a56fbfaefe222b11f2064b2b5
[INFO] checking donaghylennon/minesweeper against master#18a029cfe8e761533634bda8fe8a14e30280a21b for pr-139646
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdonaghylennon%2Fminesweeper" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] error: unable to write symref for refs/remotes/origin/HEAD: No space left on device
[INFO] [stderr] fatal: unable to update refs/remotes/origin/HEAD


failed to checkout https://github.com/donaghylennon/minesweeper

Caused by:
    command failed: exit status: 128