[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]    06803a2edb..292d6ec588  auto                   -> auto
[INFO] [stderr]  * [new branch]            dependabot/cargo/smallvec-1.4.0 -> dependabot/cargo/smallvec-1.4.0
[INFO] [stderr]  * [new branch]            jdm-patch-36           -> jdm-patch-36
[INFO] [stderr]  * [new branch]            jdm-patch-40           -> jdm-patch-40
[INFO] [stderr]  * [new branch]            layout-2020-fix-rule-tree-drop -> layout-2020-fix-rule-tree-drop
[INFO] [stderr]  * [new branch]            layout-2020-style-prep -> layout-2020-style-prep
[INFO] [stderr]    06803a2edb..292d6ec588  master                 -> master
[INFO] [stderr]  + b7442d7949...1573c802b8 try                    -> try  (forced update)
[INFO] [stderr]  + 71fafb5684...2994e39dd5 try-linux              -> try-linux  (forced update)
[INFO] [stderr]  + aba4ccedf3...74ee83c0f5 try-windows            -> try-windows  (forced update)
[INFO] [stderr]  + d3f04afc47...8f2fcf7b11 try-wpt                -> try-wpt  (forced update)
[INFO] [stderr]  + a68c67afd2...272feb9d84 try-wpt-2020           -> try-wpt-2020  (forced update)
[INFO] [stderr]  + 5cad9f2dd8...cbea7569f2 try-wpt-mac            -> try-wpt-mac  (forced update)
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 292d6ec588fa28ca264e1ef19547a4a8d40c9f7b
[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.