[INFO] cloning repository https://github.com/mike-boyle/aoc2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mike-boyle/aoc2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmike-boyle%2Faoc2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmike-boyle%2Faoc2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f904d0dfe6947e4f2744527998e758769520661
[INFO] testing mike-boyle/aoc2020 against master#e9385f9eea0221ef295a188d49d16f8f5189abf1 for pr-146098
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmike-boyle%2Faoc2020" "/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/mike-boyle/aoc2020

Caused by:
    command failed: exit status: 128