[INFO] cloning repository https://github.com/frost-head/r_grep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/frost-head/r_grep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrost-head%2Fr_grep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrost-head%2Fr_grep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cf5bee469b477c3f88fc63c553467a14fc815d3b
[INFO] checking frost-head/r_grep against master#f8c27dfe1a2e7fb538fd91dad53de06992c7c967 for pr-138915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrost-head%2Fr_grep" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-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-3-tc1/source/.git/logs/HEAD': No space left on device


failed to checkout https://github.com/frost-head/r_grep

Caused by:
    command failed: exit status: 128