[INFO] cloning repository https://github.com/zengzengzenghuy/ConstraintSystem_build [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zengzengzenghuy/ConstraintSystem_build" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzengzengzenghuy%2FConstraintSystem_build", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzengzengzenghuy%2FConstraintSystem_build'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 431b40a4d8b4c5493841f8ea9e25e237216ed07c [INFO] checking zengzengzenghuy/ConstraintSystem_build against master#40daf23eeb711dadf140b2536e67e3ff4c999196 for pr-142287 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzengzengzenghuy%2FConstraintSystem_build" "/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.repositoryformatversion' to '0' failed to checkout https://github.com/zengzengzenghuy/ConstraintSystem_build Caused by: command failed: exit status: 128