[INFO] cloning repository https://github.com/rsunray/rust-rookie
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rsunray/rust-rookie" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frsunray%2Frust-rookie", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frsunray%2Frust-rookie'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fc2af79aa37aa1ec460ceb59eea7f1c2742e40a5
[INFO] checking rsunray/rust-rookie against master#d2eadb7a94ef8c9deb5137695df33cd1fc5aee92 for pr-137268
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frsunray%2Frust-rookie" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] error: unable to write symref for refs/remotes/origin/HEAD: No space left on device
[INFO] [stderr] fatal: unable to update refs/remotes/origin/HEAD


failed to checkout https://github.com/rsunray/rust-rookie

Caused by:
    command failed: exit status: 128