[INFO] cloning repository https://github.com/sfackler/advent-of-code-2016
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sfackler/advent-of-code-2016" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsfackler%2Fadvent-of-code-2016", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsfackler%2Fadvent-of-code-2016'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7cb4d2a377f5e6c13426af98c3a4c525470fbdbf
[INFO] checking sfackler/advent-of-code-2016 against master#18a029cfe8e761533634bda8fe8a14e30280a21b for pr-139646
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsfackler%2Fadvent-of-code-2016" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sfackler/advent-of-code-2016 on toolchain 18a029cfe8e761533634bda8fe8a14e30280a21b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18a029cfe8e761533634bda8fe8a14e30280a21b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`


overridden task result to broken:cargo-toml

Caused by:
    invalid Cargo.toml syntax