[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]  + 686243e1ba...2d5f28a97b 2020-images     -> 2020-images  (forced update)
[INFO] [stderr]    92bd7637a1..6e3c131139  auto            -> auto
[INFO] [stderr]  * [new branch]            intrinsic       -> intrinsic
[INFO] [stderr]    92bd7637a1..6e3c131139  master          -> master
[INFO] [stderr]  * [new branch]            moar            -> moar
[INFO] [stderr]  + ada7d41dc9...b1add643ed try-taskcluster -> try-taskcluster  (forced update)
[INFO] [stderr]  + 2ca83807c6...ff81e11be9 try-wpt         -> try-wpt  (forced update)
[INFO] [stderr]  + 88bf7b58e6...5c579c4818 try-wpt-mac     -> try-wpt-mac  (forced update)
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6e3c131139c412031a4d288aa1ffd048ca0311c3
[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.