[INFO] crate matchdb 0.0.1 is already in cache
[INFO] extracting crate matchdb 0.0.1 into work/ex/clippy-test-run/sources/stable/reg/matchdb/0.0.1
[INFO] extracting crate matchdb 0.0.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/matchdb/0.0.1
[INFO] validating manifest of matchdb-0.0.1 on toolchain stable
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to build-fail:broken
[ERROR] caused by: missing Cargo.toml for matchdb-0.0.1
[ERROR]