[INFO] cloning repository idubrov/proc-macro-madness
[INFO] running `"git" "clone" "--bare" "git://github.com/idubrov/proc-macro-madness.git" "work/cache/sources/gh/idubrov/proc-macro-madness"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/idubrov/proc-macro-madness'...
[INFO] running `"git" "clone" "work/cache/sources/gh/idubrov/proc-macro-madness" "work/ex/beta-1.37-6/sources/1.36.0/gh/idubrov/proc-macro-madness"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/idubrov/proc-macro-madness'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/idubrov/proc-macro-madness" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/idubrov/proc-macro-madness"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/idubrov/proc-macro-madness'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c18de693756789c3b03dcf849dfdacd9464cb17a
[INFO] sha for GitHub repo idubrov/proc-macro-madness: c18de693756789c3b03dcf849dfdacd9464cb17a
[INFO] validating manifest of idubrov/proc-macro-madness 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 idubrov/proc-macro-madness'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]