[INFO] cloning repository https://github.com/jjant/rust-osx
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jjant/rust-osx" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjant%2Frust-osx", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjant%2Frust-osx'...
[INFO] [stderr] error: failed to write new configuration file /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjant%2Frust-osx/config.lock
[INFO] [stderr] fatal: could not set 'core.filemode' to 'true'


this task or one of its parent failed: failed to clone https://github.com/jjant/rust-osx

Caused by:
    command failed: exit status: 128