[INFO] cloning repository https://github.com/nw-wood/rust_book_workspace
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nw-wood/rust_book_workspace" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnw-wood%2Frust_book_workspace", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnw-wood%2Frust_book_workspace'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnw-wood%2Frust_book_workspace: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/nw-wood/rust_book_workspace
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nw-wood/rust_book_workspace" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnw-wood%2Frust_book_workspace", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnw-wood%2Frust_book_workspace'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 962db9da0cb2e1039578f83dca59e72ee40a2960
[INFO] checking nw-wood/rust_book_workspace against master#c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2 for pr-142712
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnw-wood%2Frust_book_workspace" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-5-tc1/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0'


failed to checkout https://github.com/nw-wood/rust_book_workspace

Caused by:
    command failed: exit status: 128