[INFO] updating cached repository djmittens/learn-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/djmittens/learn-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/djmittens/learn-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/djmittens/learn-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/djmittens/learn-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/djmittens/learn-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/djmittens/learn-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/djmittens/learn-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b5e7be4d2e0ebc2876751c74cb85cdbb34f7f5f4
[INFO] sha for GitHub repo djmittens/learn-rust: b5e7be4d2e0ebc2876751c74cb85cdbb34f7f5f4
[INFO] validating manifest of djmittens/learn-rust 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 djmittens/learn-rust
[ERROR]