[INFO] cloning repository https://github.com/doraneko94/ndarray-tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/doraneko94/ndarray-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdoraneko94%2Fndarray-tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdoraneko94%2Fndarray-tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a38a56558e17fe953c42fe2c87a092f8924c0aab
[INFO] checking doraneko94/ndarray-tutorial against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdoraneko94%2Fndarray-tutorial" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] error: unable to write symref for HEAD: No space left on device


failed to checkout https://github.com/doraneko94/ndarray-tutorial

Caused by:
    command failed: exit status: 1