[INFO] cloning repository xlnx/rusty-frontend
[INFO] running `"git" "clone" "--bare" "git://github.com/xlnx/rusty-frontend.git" "work/cache/sources/gh/xlnx/rusty-frontend"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/xlnx/rusty-frontend'...
[INFO] running `"git" "clone" "work/cache/sources/gh/xlnx/rusty-frontend" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/xlnx/rusty-frontend"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/xlnx/rusty-frontend'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/xlnx/rusty-frontend" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/xlnx/rusty-frontend"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/xlnx/rusty-frontend'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 424cc6d7ed3a6b685ea9bd124397beec8b0984b7
[INFO] sha for GitHub repo xlnx/rusty-frontend: 424cc6d7ed3a6b685ea9bd124397beec8b0984b7
[INFO] validating manifest of xlnx/rusty-frontend on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:cargo-toml
[ERROR] caused by: missing Cargo.toml for xlnx/rusty-frontend
[ERROR]