2 Checks for wildcard dependencies in the `Cargo.toml`.
5 [As the edition guide says](https://rust-lang-nursery.github.io/edition-guide/rust-2018/cargo-and-crates-io/crates-io-disallows-wildcard-dependencies.html),
6 it is highly unlikely that you work with any possible version of your dependency,
7 and wildcard dependencies would cause unnecessary breakage in the ecosystem.