warning: the `main` function of this doctest won't be run as it contains expressions at the top level, meaning that the whole doctest code will be wrapped in a function
  --> $DIR/main-alongside-stmts.rs:18:1
   |
LL | //! ```
   | ^^^^^^^

warning: the `main` function of this doctest won't be run as it contains expressions at the top level, meaning that the whole doctest code will be wrapped in a function
  --> $DIR/main-alongside-stmts.rs:27:1
   |
LL | //!
   | ^^^

warning: 2 warnings emitted