[INFO] cloning repository https://github.com/paddison/rust_rsa
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/paddison/rust_rsa" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaddison%2Frust_rsa", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaddison%2Frust_rsa'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 05f131365c606a0bc152d0448622ad58294e8964
[INFO] checking paddison/rust_rsa against master#f2d69d5a7c04617d122facd0a7a5bdde0af928ae for pr-138363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaddison%2Frust_rsa" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-3-tc1/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0'


failed to checkout https://github.com/paddison/rust_rsa

Caused by:
    command failed: exit status: 128