[INFO] cloning repository https://github.com/sanboxrunner/advent-of-code-2019
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sanboxrunner/advent-of-code-2019" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsanboxrunner%2Fadvent-of-code-2019", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsanboxrunner%2Fadvent-of-code-2019'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b0b8cf0bb718e147b51f02acc161fc423a6680b8
[INFO] testing sanboxrunner/advent-of-code-2019 against master#1ddedbaa5919b7b3e70d984660e21e844c615c97 for pr-128400
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsanboxrunner%2Fadvent-of-code-2019" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-5-tc1/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'core.filemode' to 'true'
[ERROR] this task or one of its parent failed!
[ERROR] failed to checkout https://github.com/sanboxrunner/advent-of-code-2019
[ERROR] caused by: command failed: exit status: 128
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.