rust/tests/target/mod-1.rs

// Deeply indented modules.

mod foo {
    mod bar {
        mod baz {
        }
    }
}

mod foo {
    mod bar {
        mod baz {
            fn foo() {
                bar()
            }
        }
    }

    mod qux {

    }
}

mod boxed {
    pub use std::boxed::{Box, HEAP};
}