[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]  + f92e3488f2...ca25e18791 auto         -> auto  (forced update)
[INFO] [stderr]    0f9b04680a..ca25e18791  master       -> master
[INFO] [stderr]  + d534793496...a7384420ed smup         -> smup  (forced update)
[INFO] [stderr]  + 4c25e02f26...fa9314aaa2 try          -> try  (forced update)
[INFO] [stderr]  + 38b1914df4...8bf51574ec try-linux    -> try-linux  (forced update)
[INFO] [stderr]  + c0c615186c...00c27808b2 try-windows  -> try-windows  (forced update)
[INFO] [stderr]  + 4e66e83ce4...ca25e18791 try-wpt      -> try-wpt  (forced update)
[INFO] [stderr]  + 9ebc64107d...b6a9f98549 try-wpt-2020 -> try-wpt-2020  (forced update)
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ca25e18791163de5c6af1267d876c7f5bb705f61
[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.