[INFO] cloning repository https://github.com/gopak-Barvinok/guessing-game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gopak-Barvinok/guessing-game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgopak-Barvinok%2Fguessing-game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgopak-Barvinok%2Fguessing-game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e5f24b38d09a50cb02c023ee0cd7cb55a415ed3b
[INFO] checking gopak-Barvinok/guessing-game against master#a5db378dc14a40dd1580c27fb8362156446382c3 for pr-136490
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgopak-Barvinok%2Fguessing-game" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] fatal: update_ref failed for ref 'HEAD': cannot update the ref 'HEAD': unable to append to '/workspace/builds/worker-2-tc1/source/.git/logs/HEAD': No space left on device


failed to checkout https://github.com/gopak-Barvinok/guessing-game

Caused by:
    command failed: exit status: 128