[INFO] cloning repository https://github.com/x86kingfischer/mock-signal
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/x86kingfischer/mock-signal" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fx86kingfischer%2Fmock-signal", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fx86kingfischer%2Fmock-signal'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 768022bd3a95fa619b6d82f05510ea60521f9944
[INFO] checking x86kingfischer/mock-signal against master#3350c1eb3fd8fe1bee1ed4c76944d707bd256876 for pr-140558
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fx86kingfischer%2Fmock-signal" "/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/x86kingfischer/mock-signal

Caused by:
    command failed: exit status: 128