[INFO] crate matchdb 0.0.1 is already in cache
[INFO] extracting crate matchdb 0.0.1 into work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/reg/matchdb/0.0.1
[INFO] extracting crate matchdb 0.0.1 into work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/reg/matchdb/0.0.1
[INFO] validating manifest of matchdb-0.0.1 on toolchain master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039
[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]