[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]    5dae012db8..6c6353fd45  auto                        -> auto
[INFO] [stderr]  * [new branch]            dependabot/cargo/combine-3.8.1 -> dependabot/cargo/combine-3.8.1
[INFO] [stderr]  * [new branch]            dependabot/cargo/dbus-0.6.5 -> dependabot/cargo/dbus-0.6.5
[INFO] [stderr]  * [new branch]            dependabot/cargo/lyon_geom-0.14.1 -> dependabot/cargo/lyon_geom-0.14.1
[INFO] [stderr]  + e09e0b5a2e...529c0cda9f dependabot/cargo/new_debug_unreachable-1.0.4 -> dependabot/cargo/new_debug_unreachable-1.0.4  (forced update)
[INFO] [stderr]  * [new branch]            dependabot/cargo/rustc-demangle-0.1.16 -> dependabot/cargo/rustc-demangle-0.1.16
[INFO] [stderr]  * [new branch]            dependabot/cargo/serde-1.0.111 -> dependabot/cargo/serde-1.0.111
[INFO] [stderr]  + f79f829f1b...939ce4009c dependabot/cargo/smallvec-1.4.0 -> dependabot/cargo/smallvec-1.4.0  (forced update)
[INFO] [stderr]  * [new branch]            layout-2020-incremental-box-tree -> layout-2020-incremental-box-tree
[INFO] [stderr]    dafcee4c2e..684a32879c  master                      -> master
[INFO] [stderr]  + 2994e39dd5...3bf3e59a2a try-linux                   -> try-linux  (forced update)
[INFO] [stderr]  + 643a386cb1...ae94d7e6f5 try-wpt                     -> try-wpt  (forced update)
[INFO] [stderr]  + ed3b9df519...a47ca5b5b5 try-wpt-2020                -> try-wpt-2020  (forced update)
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 684a32879c40a7d6f5936e0a61190e56fdf8ca07
[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.