[INFO] updating cached repository https://github.com/LyricZhao/OS-Lab
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/LyricZhao/OS-Lab
[INFO] [stderr]    7ba043d..2e2a876  lab-2      -> lab-2
[INFO] [stderr]  + e052cde...81bc63d lab-3      -> lab-3  (forced update)
[INFO] [stderr]    8b102f7..b321e73  lab-4      -> lab-4
[INFO] [stderr]  * [new branch]      lab-5      -> lab-5
[INFO] [stderr]  * [new branch]      lab-6      -> lab-6
[INFO] [stderr]  * [new branch]      lab-7      -> lab-7
[INFO] [stderr]  * [new branch]      lab-8      -> lab-8
[INFO] [stderr]    c1a8a99..ab9b2d6  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ab9b2d6601eeab20c76809efa2cdecb5a68c5787
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:cargo-toml
[ERROR] caused by: missing Cargo.toml
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.