[INFO] crate mpfr-sys 0.0.8 is already in cache
[INFO] extracting crate mpfr-sys 0.0.8 into work/ex/beta-1.38-1/sources/1.37.0/reg/mpfr-sys/0.0.8
[INFO] extracting crate mpfr-sys 0.0.8 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mpfr-sys/0.0.8
[INFO] validating manifest of mpfr-sys-0.0.8 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 mpfr-sys-0.0.8'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]