[INFO] updating cached repository Java189/polygon-nums
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Java189/polygon-nums
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Java189/polygon-nums" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/Java189/polygon-nums"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/Java189/polygon-nums'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Java189/polygon-nums" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/Java189/polygon-nums"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/Java189/polygon-nums'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] eb44dca4c10e0b79955f27f1af9650e3e38953de
[INFO] sha for GitHub repo Java189/polygon-nums: eb44dca4c10e0b79955f27f1af9650e3e38953de
[INFO] validating manifest of Java189/polygon-nums on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:cargo-toml
[ERROR] caused by: missing Cargo.toml for Java189/polygon-nums
[ERROR]