[INFO] cloning repository https://github.com/ian-henderson/sorting-algorithm-benchmarks-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ian-henderson/sorting-algorithm-benchmarks-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fian-henderson%2Fsorting-algorithm-benchmarks-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fian-henderson%2Fsorting-algorithm-benchmarks-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2b022b15f73ae6a953ba64231eb56a08dfa5df83
[INFO] checking ian-henderson/sorting-algorithm-benchmarks-rust against master#96cfc75584359ae7ad11cc45968059f29e7b44b7 for pr-137728
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fian-henderson%2Fsorting-algorithm-benchmarks-rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-0-tc1/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0'


failed to checkout https://github.com/ian-henderson/sorting-algorithm-benchmarks-rust

Caused by:
    command failed: exit status: 128