[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)     -> background-image
[INFO] [stderr]  + 05cee49528...694bb408cc auto         -> auto  (forced update)
[INFO] [stderr]    1c379c8728..6669ba36d2  jdm-patch-31 -> jdm-patch-31
[INFO] [stderr]  + 13be5daa9d...59b9992d44 jdm-revert3  -> jdm-revert3  (forced update)
[INFO] [stderr]    eb8fbddca9..2d02f2b587  master       -> master
[INFO] [stderr]  + 79bddab516...427a09bb21 try          -> try  (forced update)
[INFO] [stderr]  + 360dd6dd24...0164d99919 try-linux    -> try-linux  (forced update)
[INFO] [stderr]  + 2f1360c1ca...75e405d355 try-wpt      -> try-wpt  (forced update)
[INFO] [stderr]  + 0661df3b69...07d8fe7782 try-wpt-mac  -> try-wpt-mac  (forced update)
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2d02f2b58765d69dfd5362b4406c06f6fcc1a40f
[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.