I'm unreasonably* excited to announce a new version of cargo-deb. This tool automagically turns Rust/Cargo binary projects into Debian packages.
cargo install cargo-deb
cargo deb
That's all you need to get a <your_project_here>.deb file that installs on Debian/Ubuntu, with accurately specified dependencies, and as much data as available in Cargo.toml, so you can have your Rust executables properly installed system-wide in a dpkg-friendly way.
*) manual creation of deb files was always tedious and error-prone for me — requiring a bunch of config files, obscure sequences of maintainer scripts, and whole day of googling errors. So seeing it being zero effort is magical for me.