[INFO] cloning repository https://github.com/stephank/pocketcron
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stephank/pocketcron" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephank%2Fpocketcron", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephank%2Fpocketcron'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cf63fac4fdf7232ce68709bedbe1d5ff0c5ed1c5
[INFO] checking stephank/pocketcron against master#9bfa31f632912180dc742809bcc51a97f2d7079d for pr-140151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephank%2Fpocketcron" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-6-tc1/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0'


failed to checkout https://github.com/stephank/pocketcron

Caused by:
    command failed: exit status: 128