[INFO] cloning repository https://github.com/rust-gjk/rustgrade
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-gjk/rustgrade" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-gjk%2Frustgrade", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-gjk%2Frustgrade'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db49aaa038f7a469f4d970ad16c45c78d20b1453
[INFO] checking rust-gjk/rustgrade against master#9d28fe39763974a96d61232e96ac856735e4cdd6 for pr-139624
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-gjk%2Frustgrade" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-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-1-tc1/source/.git/logs/HEAD': No space left on device


failed to checkout https://github.com/rust-gjk/rustgrade

Caused by:
    command failed: exit status: 128