[INFO] cloning repository https://github.com/zappan/rustbook-minigrep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zappan/rustbook-minigrep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzappan%2Frustbook-minigrep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzappan%2Frustbook-minigrep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a1c81e0e3380a73ecad928879a5c5d9c35908dcc
[INFO] checking zappan/rustbook-minigrep against master#fd17deacce374a4185c882795be162e17b557050 for pr-138001
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzappan%2Frustbook-minigrep" "/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] fatal: error closing file /workspace/builds/worker-6-tc1/source/.git/packed-refs.new: No space left on device


failed to checkout https://github.com/zappan/rustbook-minigrep

Caused by:
    command failed: exit status: 128