[INFO] cloning repository https://github.com/kwonoj/jemalloc-sys-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kwonoj/jemalloc-sys-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkwonoj%2Fjemalloc-sys-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkwonoj%2Fjemalloc-sys-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 16d16dab086cadc60c380a13f9f28e3c4c6062cc
[INFO] checking kwonoj/jemalloc-sys-test against master#9c67cecd12d79f1bbc00a74f70e7ef9fff086a5a for pr-138458
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkwonoj%2Fjemalloc-sys-test" "/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/kwonoj/jemalloc-sys-test

Caused by:
    command failed: exit status: 128