[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)     -> rustup
[INFO] [stderr]    7b5ec99d25..37b555a2d6  auto         -> auto
[INFO] [stderr]    7b5ec99d25..37b555a2d6  master       -> master
[INFO] [stderr]  + 1f1f488f5f...5693ba8271 try          -> try  (forced update)
[INFO] [stderr]  + 71fafb5684...2994e39dd5 try-linux    -> try-linux  (forced update)
[INFO] [stderr]  + 5f833005ce...ab56ca008d try-wpt      -> try-wpt  (forced update)
[INFO] [stderr]  + a68c67afd2...694db709a8 try-wpt-2020 -> try-wpt-2020  (forced update)
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 37b555a2d638e7aae17f9dad6cf8c66503cee899
[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.