[INFO] updating cached repository superwhiskers/ferrisfw
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/superwhiskers/ferrisfw
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/superwhiskers/ferrisfw" "work/ex/beta-1.38-1/sources/1.37.0/gh/superwhiskers/ferrisfw"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/superwhiskers/ferrisfw'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/superwhiskers/ferrisfw" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/superwhiskers/ferrisfw"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/superwhiskers/ferrisfw'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a657780fadaf4f2541bf531ba3e654a2e1756f7f
[INFO] sha for GitHub repo superwhiskers/ferrisfw: a657780fadaf4f2541bf531ba3e654a2e1756f7f
[INFO] validating manifest of superwhiskers/ferrisfw 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 superwhiskers/ferrisfw
[ERROR]