[INFO] cloning repository https://github.com/spitfire05/toy-payments-engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/spitfire05/toy-payments-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspitfire05%2Ftoy-payments-engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspitfire05%2Ftoy-payments-engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f76b3b3f34f2b5b081ecc8c83fa005ee5f1498a0
[INFO] testing spitfire05/toy-payments-engine against master#1ddedbaa5919b7b3e70d984660e21e844c615c97 for pr-128400
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspitfire05%2Ftoy-payments-engine" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-2-tc1/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0'
[ERROR] this task or one of its parent failed!
[ERROR] failed to checkout https://github.com/spitfire05/toy-payments-engine
[ERROR] caused by: command failed: exit status: 128
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.