[INFO] cloning repository https://github.com/stevedonovan/cargo-docgen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stevedonovan/cargo-docgen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevedonovan%2Fcargo-docgen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevedonovan%2Fcargo-docgen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3598d7173046cb4f4eabd780361d7acdd9126daf
[INFO] checking stevedonovan/cargo-docgen against master#ac385a5af6d9fa8399a0cec799833cd28324abf8 for pr-125107
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevedonovan%2Fcargo-docgen" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] /workspace/builds/worker-1-tc1/source/.git/branches/: No space left on device
[ERROR] this task or one of its parent failed!
[ERROR] failed to checkout https://github.com/stevedonovan/cargo-docgen
[ERROR] caused by: command failed: exit status: 1
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.