[INFO] cloning repository https://github.com/meyoustu/llvm-ir-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/meyoustu/llvm-ir-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeyoustu%2Fllvm-ir-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeyoustu%2Fllvm-ir-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 46f4381b84b5c3fd1ab68f222a0c5db5d58b906b
[INFO] checking meyoustu/llvm-ir-demo against master#01706e1a34c87656fcbfce198608f4cd2ac6461a for pr-135272
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeyoustu%2Fllvm-ir-demo" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-4-tc1/source/.git/config.lock
[INFO] [stderr] fatal: could not set 'core.filemode' to 'true'


failed to checkout https://github.com/meyoustu/llvm-ir-demo

Caused by:
    command failed: exit status: 128