[INFO] crate custom_derive 0.1.7 is already in cache
[INFO] extracting crate custom_derive 0.1.7 into work/ex/clippy-test-run/sources/stable/reg/custom_derive/0.1.7
[INFO] extracting crate custom_derive 0.1.7 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/custom_derive/0.1.7
[INFO] validating manifest of custom_derive-0.1.7 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "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" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"` failed
[ERROR]