[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)     -> 2020-images
[INFO] [stderr]  - [deleted]               (none)     -> intrinsic
[INFO] [stderr]  - [deleted]               (none)     -> moar
[INFO] [stderr]  - [deleted]               (none)     -> rustup
[INFO] [stderr]    6e3c131139..2acd047a03  auto             -> auto
[INFO] [stderr]  * [new branch]            linux-processes  -> linux-processes
[INFO] [stderr]    6e3c131139..f2b363b3f0  master           -> master
[INFO] [stderr]  * [new branch]            reftest-analyzer -> reftest-analyzer
[INFO] [stderr]  * [new branch]            replaced         -> replaced
[INFO] [stderr]  * [new branch]            text-align       -> text-align
[INFO] [stderr]  * [new branch]            treeherder       -> treeherder
[INFO] [stderr]  + 460c23207c...dd1cdf51ea try              -> try  (forced update)
[INFO] [stderr]  + b1add643ed...1fd44f678e try-taskcluster  -> try-taskcluster  (forced update)
[INFO] [stderr]  + 0d103f0ba3...3895723d63 try-windows      -> try-windows  (forced update)
[INFO] [stderr]  + ff81e11be9...6d95550707 try-wpt          -> try-wpt  (forced update)
[INFO] [stderr]  + 5c579c4818...0661df3b69 try-wpt-mac      -> try-wpt-mac  (forced update)
[INFO] [stderr]  * [new branch]            u                -> u
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f2b363b3f006c90d77c7cc04f72ef00e676fa23a
[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.