[INFO] cloning repository https://github.com/joeyrosztoczy/rust-book-exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joeyrosztoczy/rust-book-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoeyrosztoczy%2Frust-book-exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoeyrosztoczy%2Frust-book-exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 99c769183420d26f6a7a7ddc189099cb0eaf5fee
[INFO] checking joeyrosztoczy/rust-book-exercises against master#092a284ba0421695f2032c947765429fd7095796 for pr-139763
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoeyrosztoczy%2Frust-book-exercises" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-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-7-tc1/source/.git/logs/HEAD': No space left on device


failed to checkout https://github.com/joeyrosztoczy/rust-book-exercises

Caused by:
    command failed: exit status: 128