[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]  + 0b43a9c574...fe37384100 auto       -> auto  (forced update)
[INFO] [stderr]    5f55cd5d71..c67b3d71e2  master     -> master
[INFO] [stderr]  + 43e811c256...1beab1a3b7 smup       -> smup  (forced update)
[INFO] [stderr]  + 0164d99919...d090bddd44 try-linux  -> try-linux  (forced update)
[INFO] [stderr]  + 85946f2c51...63586ff181 try-wpt    -> try-wpt  (forced update)
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c67b3d71e23f10ba2049bdd9aed822b19ed8527f
[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.