[INFO] cloning repository dtcristo/mandelbrot
[INFO] running `"git" "clone" "--bare" "git://github.com/dtcristo/mandelbrot.git" "work/cache/sources/gh/dtcristo/mandelbrot"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/dtcristo/mandelbrot'...
[INFO] running `"git" "clone" "work/cache/sources/gh/dtcristo/mandelbrot" "work/ex/beta-1.37-6/sources/1.36.0/gh/dtcristo/mandelbrot"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/dtcristo/mandelbrot'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dtcristo/mandelbrot" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dtcristo/mandelbrot"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dtcristo/mandelbrot'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 11a8fc174ce5d777e1b86b34334279efcf3e4b16
[INFO] sha for GitHub repo dtcristo/mandelbrot: 11a8fc174ce5d777e1b86b34334279efcf3e4b16
[INFO] validating manifest of dtcristo/mandelbrot on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:cargo-toml
[ERROR] caused by: invalid syntax in dtcristo/mandelbrot's Cargo.toml
[ERROR] caused by: command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` failed
[ERROR]