[INFO] cloning repository gliheng/flutter-rs
[INFO] running `"git" "clone" "--bare" "git://github.com/gliheng/flutter-rs.git" "work/cache/sources/gh/gliheng/flutter-rs"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/gliheng/flutter-rs'...
[INFO] running `"git" "clone" "work/cache/sources/gh/gliheng/flutter-rs" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/gliheng/flutter-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/gliheng/flutter-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gliheng/flutter-rs" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/gliheng/flutter-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/gliheng/flutter-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c7cb6fc5eafaf81977b73de50b7078a967e14f33
[INFO] sha for GitHub repo gliheng/flutter-rs: c7cb6fc5eafaf81977b73de50b7078a967e14f33
[INFO] validating manifest of gliheng/flutter-rs on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "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 gliheng/flutter-rs's Cargo.toml
[ERROR] caused by: command `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"` failed
[ERROR]