binaries/hello_build_script/BUILD.gn
rust_build_script("hello_build_script_build_script") {
sources = [ "build.rs" ]
crate_root = "build.rs"
}
rust_executable("hello_build_script") {
sources = [ "src/main.rs" ]
crate_root = "src/main.rs"
deps = [ ":hello_build_script_build_script" ]
}