[INFO] updating cached repository BenUnderscore/ai-2048
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/BenUnderscore/ai-2048
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/BenUnderscore/ai-2048" "work/ex/beta-1.38-1/sources/1.37.0/gh/BenUnderscore/ai-2048"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/BenUnderscore/ai-2048'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/BenUnderscore/ai-2048" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/BenUnderscore/ai-2048"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/BenUnderscore/ai-2048'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 61d59675cf877400ffb36869de4f4cb8b10f7254
[INFO] sha for GitHub repo BenUnderscore/ai-2048: 61d59675cf877400ffb36869de4f4cb8b10f7254
[INFO] validating manifest of BenUnderscore/ai-2048 on toolchain 1.37.0
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:cargo-toml
[ERROR] caused by: missing Cargo.toml for BenUnderscore/ai-2048
[ERROR]