src/doc/book/listings/ch05-using-structs-to-structure-related-data/listing-05-12/output.txt

$ cargo run
   Compiling structs v0.1.0 (file:///projects/structs)
    Finished dev [unoptimized + debuginfo] target(s) in 0.48s
     Running `target/debug/structs`
rect1 is Rectangle { width: 30, height: 50 }