[INFO] cloning repository https://github.com/fnichol/artifetch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fnichol/artifetch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffnichol%2Fartifetch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffnichol%2Fartifetch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4fd3bf89dccef89589cb72a22e53bcd44d8fe1bb
[INFO] checking fnichol/artifetch against master#90384941aae4ea38de00e4702b50757e9b882a19 for pr-138340
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffnichol%2Fartifetch" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-3-tc1/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'remote.origin.fetch' to '+refs/heads/*:refs/remotes/origin/*'


failed to checkout https://github.com/fnichol/artifetch

Caused by:
    command failed: exit status: 128