[INFO] cloning repository https://github.com/lmarmol/mdl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lmarmol/mdl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flmarmol%2Fmdl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flmarmol%2Fmdl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6605e29d99a6313ca7b68ac7b5b6d486551ccb2e
[INFO] checking lmarmol/mdl against master#69fd5e4059f8840f09f60269bcda23dcdcb77151 for pr-135733
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flmarmol%2Fmdl" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-4-tc1/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0'


failed to checkout https://github.com/lmarmol/mdl

Caused by:
    command failed: exit status: 128