[INFO] updating cached repository fluency-in/rust-grade-school
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fluency-in/rust-grade-school
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fluency-in/rust-grade-school" "work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/fluency-in/rust-grade-school"`
[INFO] [stderr] Cloning into 'work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/fluency-in/rust-grade-school'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fluency-in/rust-grade-school" "work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/fluency-in/rust-grade-school"`
[INFO] [stderr] Cloning into 'work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/fluency-in/rust-grade-school'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5a9110fb56051f3b47e41998eaf0989fa1ab01c6
[INFO] sha for GitHub repo fluency-in/rust-grade-school: 5a9110fb56051f3b47e41998eaf0989fa1ab01c6
[INFO] validating manifest of fluency-in/rust-grade-school on toolchain master#6ecad338381cc3b8d56e2df22e5971a598eddd6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to build-fail:broken
[ERROR] caused by: invalid syntax in fluency-in/rust-grade-school's Cargo.toml
[ERROR] caused by: command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"` failed
[ERROR]