[INFO] cloning repository https://github.com/randomize/flurry-json-preprocess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/randomize/flurry-json-preprocess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frandomize%2Fflurry-json-preprocess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frandomize%2Fflurry-json-preprocess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3547215639f67d51ec32e60b1b62a5a4b397fd6
[INFO] checking randomize/flurry-json-preprocess against master#7bdae134cba57426d3c56b5de737a351762445e1 for pr-123794
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frandomize%2Fflurry-json-preprocess" "/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.filemode' to 'true'
[ERROR] this task or one of its parent failed!
[ERROR] failed to checkout https://github.com/randomize/flurry-json-preprocess
[ERROR] caused by: command failed: exit status: 128
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.