[INFO] cloning repository https://github.com/naychishunnlei/HW2_Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/naychishunnlei/HW2_Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnaychishunnlei%2FHW2_Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnaychishunnlei%2FHW2_Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e950ac83462f3e8f81c732159f755af6637d065e
[INFO] checking naychishunnlei/HW2_Rust against master#65cd843ae06ad00123c131a431ed5304e4cd577a for pr-122077
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnaychishunnlei%2FHW2_Rust" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] error: unable to write file tests/temp_test.rs
[INFO] [stderr] fatal: unable to checkout working tree
[INFO] [stderr] warning: Clone succeeded, but checkout failed.
[INFO] [stderr] You can inspect what was checked out with 'git status'
[INFO] [stderr] and retry with 'git restore --source=HEAD :/'
[INFO] [stderr] 
[ERROR] this task or one of its parent failed!
[ERROR] failed to checkout https://github.com/naychishunnlei/HW2_Rust
[ERROR] caused by: command failed: exit status: 128
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.