[INFO] cloning repository https://github.com/ashsingh21/naive_btree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ashsingh21/naive_btree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fashsingh21%2Fnaive_btree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fashsingh21%2Fnaive_btree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 784a90a38ecf7f43886bfaa7b9ef7d22931e8683
[INFO] checking ashsingh21/naive_btree against master#b56aaec52bc0fa35591a872fb4aac81f606e265c for pr-122661-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fashsingh21%2Fnaive_btree" "/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] error: unable to write symref for HEAD: No space left on device
[INFO] [stderr] fatal: unable to update HEAD


failed to checkout https://github.com/ashsingh21/naive_btree

Caused by:
    command failed: exit status: 128