[INFO] cloning repository https://github.com/ulibo-yuki/thumbnail_maker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ulibo-yuki/thumbnail_maker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fulibo-yuki%2Fthumbnail_maker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fulibo-yuki%2Fthumbnail_maker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 07acc5709e615bf6bc4e196bbdae8f9051f49c7f
[INFO] checking ulibo-yuki/thumbnail_maker against master#e3e432d4d65a55e6db167598e96db2bcb163e316 for pr-140313
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fulibo-yuki%2Fthumbnail_maker" "/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 'remote.origin.fetch' to '+refs/heads/*:refs/remotes/origin/*'


failed to checkout https://github.com/ulibo-yuki/thumbnail_maker

Caused by:
    command failed: exit status: 128