[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]    37b555a2d6..37c53c4ea8  auto                      -> auto
[INFO] [stderr]  * [new branch]            jdm-patch-36              -> jdm-patch-36
[INFO] [stderr]  * [new branch]            layout-2020-fix-rule-tree -> layout-2020-fix-rule-tree
[INFO] [stderr]  * [new branch]            layout-2020-fix-rule-tree-drop -> layout-2020-fix-rule-tree-drop
[INFO] [stderr]    37b555a2d6..c9480c8e07  master                    -> master
[INFO] [stderr]  + 5693ba8271...83d5bed9d7 try                       -> try  (forced update)
[INFO] [stderr]  + aba4ccedf3...b0b8871dde try-windows               -> try-windows  (forced update)
[INFO] [stderr]  + ab56ca008d...99e9220996 try-wpt                   -> try-wpt  (forced update)
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c9480c8e07a89c1bd40b29438f90e76dd8757edc
[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.