[INFO] cloning repository https://github.com/gyscos/subpixel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gyscos/subpixel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgyscos%2Fsubpixel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgyscos%2Fsubpixel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a2dd295ea87be7f2ac7ca4a093519f0391d5f306
[INFO] checking gyscos/subpixel against master#cb06d12710575a0d7ff71d6fe108f3bcff4f9195 for pr-128425-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgyscos%2Fsubpixel" "/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 'core.repositoryformatversion' to '0'


failed to checkout https://github.com/gyscos/subpixel

Caused by:
    command failed: exit status: 128