[INFO] cloning repository https://github.com/fillmula/lightning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fillmula/lightning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffillmula%2Flightning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffillmula%2Flightning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd3d037fd7f1f7d641b5232a8aa0f398963a24e4
[INFO] checking fillmula/lightning against master#419b3e2d3e350822550eee0e82eeded4d324d584 for pr-135536
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffillmula%2Flightning" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] error: unable to write file .gitignore
[INFO] [stderr] error: unable to write file .travis.yml
[INFO] [stderr] error: unable to write file README.md
[INFO] [stderr] error: unable to write file publish.sh
[INFO] [stderr] error: unable to write file requirements.txt
[INFO] [stderr] error: unable to write file setup.py
[INFO] [stderr] fatal: cannot create directory at 'thunderlight': No space left on device
[INFO] [stderr] warning: Clone succeeded, but checkout failed.
[INFO] [stderr] You can inspect what was checked out with 'git status'
[INFO] [stderr] and retry with 'git restore --source=HEAD :/'
[INFO] [stderr] 


failed to checkout https://github.com/fillmula/lightning

Caused by:
    command failed: exit status: 128