[INFO] cloning repository https://github.com/ngocquang/substrate-kitties-tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ngocquang/substrate-kitties-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fngocquang%2Fsubstrate-kitties-tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fngocquang%2Fsubstrate-kitties-tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2a857bf4aeabb882ea41c9939c151aa5c1cc9f6a
[INFO] checking ngocquang/substrate-kitties-tutorial against master#b2728d5426bab1d8c39709768c7e22b7f66dde5d for pr-135852
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fngocquang%2Fsubstrate-kitties-tutorial" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-5-tc1/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'core.logallrefupdates' to 'true'


failed to checkout https://github.com/ngocquang/substrate-kitties-tutorial

Caused by:
    command failed: exit status: 128