[INFO] updating cached repository https://github.com/servo/servo
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/servo/servo
[INFO] [stderr]  - [deleted]               (none)     -> rand
[INFO] [stderr]    e26530341b..2ad6e94091  auto        -> auto
[INFO] [stderr]    30c588ddac..2ad6e94091  master      -> master
[INFO] [stderr]  * [new branch]            rcdom       -> rcdom
[INFO] [stderr]  * [new branch]            rustup      -> rustup
[INFO] [stderr]  + c5375147f4...f60bdb14f5 try-wpt     -> try-wpt  (forced update)
[INFO] [stderr]  + f68444e0f8...3cb0b2ef89 try-wpt-mac -> try-wpt-mac  (forced update)
[INFO] [stderr]  + d6757ebf9d...0d8d0b28e1 wrup        -> wrup  (forced update)
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2ad6e940913972620eab6c45a3fe2ace3c2c88f0
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:cargo-toml
[ERROR] caused by: invalid Cargo.toml syntax
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.