[INFO] updating cached repository range3/rust-tx-practice
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/range3/rust-tx-practice
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/range3/rust-tx-practice" "work/ex/beta-1.38-1/sources/1.37.0/gh/range3/rust-tx-practice"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/range3/rust-tx-practice'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/range3/rust-tx-practice" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/range3/rust-tx-practice"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/range3/rust-tx-practice'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] df36099221c3d8739ffb94fc39a455004aa0b610
[INFO] sha for GitHub repo range3/rust-tx-practice: df36099221c3d8739ffb94fc39a455004aa0b610
[INFO] validating manifest of range3/rust-tx-practice on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:cargo-toml
[ERROR] caused by: invalid syntax in range3/rust-tx-practice's Cargo.toml
[ERROR] caused by: command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` failed
[ERROR]