[INFO] cloning repository https://github.com/cjbassi/rust-warp-realworld-backend
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cjbassi/rust-warp-realworld-backend" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjbassi%2Frust-warp-realworld-backend", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjbassi%2Frust-warp-realworld-backend'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f1f83b898a55560717d07ffe0e7f26035eaefdc2
[INFO] checking cjbassi/rust-warp-realworld-backend against master#2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48 for pr-142723
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjbassi%2Frust-warp-realworld-backend" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-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/cjbassi/rust-warp-realworld-backend

Caused by:
    command failed: exit status: 128