This is because there's no proper way to catch panics in Rust, which makes it hard to know _which_ test did cause the panic when this happen. The stack trace gives little detail about this, but we can print this information before it happens -- making it easier to identify the culprit.
CLI
This is the crate that contains the aiken command line application which bundles together all the other crates in this project.
Install
cargo install aiken