[INFO] updating cached repository mxinden/id_generator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mxinden/id_generator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mxinden/id_generator" "work/ex/beta-1.38-1/sources/1.37.0/gh/mxinden/id_generator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mxinden/id_generator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mxinden/id_generator" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mxinden/id_generator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mxinden/id_generator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f4e600111c5d8e81437eac8dc55e4f65ad8e986b
[INFO] sha for GitHub repo mxinden/id_generator: f4e600111c5d8e81437eac8dc55e4f65ad8e986b
[INFO] validating manifest of mxinden/id_generator 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 mxinden/id_generator
[ERROR]