[INFO] cloning repository https://github.com/hankei6km/test-rust-chan-chan
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hankei6km/test-rust-chan-chan" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhankei6km%2Ftest-rust-chan-chan", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhankei6km%2Ftest-rust-chan-chan'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5d65d590f86731219ccfaeeb4d1f32fa83a7b763
[INFO] checking hankei6km/test-rust-chan-chan against master#90384941aae4ea38de00e4702b50757e9b882a19 for pr-138340
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhankei6km%2Ftest-rust-chan-chan" "/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] 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/hankei6km/test-rust-chan-chan

Caused by:
    command failed: exit status: 128