[INFO] cloning repository https://github.com/jaynus/amethyst-minimal-ui
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jaynus/amethyst-minimal-ui" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaynus%2Famethyst-minimal-ui", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaynus%2Famethyst-minimal-ui'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 02ffdbba7c9bb7af9e982485e03aa30c0df8b013
[INFO] checking jaynus/amethyst-minimal-ui against master#43ca9d18e333797f0aa3b525501a7cec8d61a96b for pr-136764
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaynus%2Famethyst-minimal-ui" "/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/jaynus/amethyst-minimal-ui

Caused by:
    command failed: exit status: 128