This is a set of macros and tools to help make rust/cargo packaging a bit nicer.
These are used in your .spec file to build, test and install your rust application.
%{cargo_build}
%{cargo_test}
%{cargo_install}
Custom RUSTFLAGS can be set with:
%define __rustflags --cfg tokio_unstable
These tools are used both manually and automatically in your build to help generate metadata for your package.