[INFO] cloning repository gerust/reference
[INFO] running `"git" "clone" "--bare" "git://github.com/gerust/reference.git" "work/cache/sources/gh/gerust/reference"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/gerust/reference'...
[INFO] running `"git" "clone" "work/cache/sources/gh/gerust/reference" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/gerust/reference"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/gerust/reference'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gerust/reference" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/gerust/reference"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/gerust/reference'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4477316c80f29e6b119413b508180f338d64d2a5
[INFO] sha for GitHub repo gerust/reference: 4477316c80f29e6b119413b508180f338d64d2a5
[INFO] validating manifest of gerust/reference on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "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 gerust/reference's Cargo.toml
[ERROR] caused by: command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"` failed
[ERROR]