[INFO] cloning repository https://github.com/smukherjee2016/large_vec_allocation_repro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/smukherjee2016/large_vec_allocation_repro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmukherjee2016%2Flarge_vec_allocation_repro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmukherjee2016%2Flarge_vec_allocation_repro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb9dcc470847d2f82807c64dc95a22edf4fa9f71
[INFO] checking smukherjee2016/large_vec_allocation_repro against master#f21fbac535ab2c3bc50db20547f4d48477357103 for pr-143193
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmukherjee2016%2Flarge_vec_allocation_repro" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-7-tc1/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0'


failed to checkout https://github.com/smukherjee2016/large_vec_allocation_repro

Caused by:
    command failed: exit status: 128