[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]  + 55bfdc7a80...10dd0ce083 auto         -> auto  (forced update)
[INFO] [stderr]  * [new branch]            jdm-patch-40 -> jdm-patch-40
[INFO] [stderr]    63a5807540..e8e0b70266  master       -> master
[INFO] [stderr]  + 09f8c9897b...168241c561 try-mac      -> try-mac  (forced update)
[INFO] [stderr]  + ca32d605e3...813ebe078f try-windows  -> try-windows  (forced update)
[INFO] [stderr]  + 0e990942bc...6c042958b2 try-wpt-2020 -> try-wpt-2020  (forced update)
[INFO] [stderr]  + 07d8fe7782...90148a54f6 try-wpt-mac  -> try-wpt-mac  (forced update)
[INFO] [stderr]  * [new branch]            webidl       -> webidl
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e8e0b702662704572e7c04a78d0ab9e023a0ad5c
[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.