[INFO] updating cached repository tiziano88/adventofcode-2017
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tiziano88/adventofcode-2017
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tiziano88/adventofcode-2017" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/tiziano88/adventofcode-2017"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/tiziano88/adventofcode-2017'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tiziano88/adventofcode-2017" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/tiziano88/adventofcode-2017"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/tiziano88/adventofcode-2017'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 305c1bac0145a13e7a1539f80e5c528096bebeb4
[INFO] sha for GitHub repo tiziano88/adventofcode-2017: 305c1bac0145a13e7a1539f80e5c528096bebeb4
[INFO] validating manifest of tiziano88/adventofcode-2017 on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:cargo-toml
[ERROR] caused by: missing Cargo.toml for tiziano88/adventofcode-2017
[ERROR]