[INFO] crate custom_derive 0.1.7 is already in cache
[INFO] extracting crate custom_derive 0.1.7 into work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/custom_derive/0.1.7
[INFO] extracting crate custom_derive 0.1.7 into work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/custom_derive/0.1.7
[INFO] validating manifest of custom_derive-0.1.7 on toolchain master#d99a320cba42f661aebfa1293b7b2ec3603dda75
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-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 custom_derive-0.1.7's Cargo.toml
[ERROR] caused by: command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "read-manifest" "--manifest-path" "Cargo.toml"` failed
[ERROR]