error[E0597]: `stmt` does not live long enough
  --> $DIR/issue-54556-stephaneyfx.rs:27:21
   |
LL |     let stmt = Statement;
   |         ---- binding `stmt` declared here
LL |     let rows = Rows(&stmt);
   |                     ^^^^^ borrowed value does not live long enough
LL |     rows.map(|row| row).next()
   |     ------------------- a temporary with access to the borrow is created here ...
...
LL | }
   | -
   | |
   | `stmt` dropped here while still borrowed
   | ... and the borrow might be used here, when that temporary is dropped and runs the destructor for type `Map<Rows<'_>, {closure@$DIR/issue-54556-stephaneyfx.rs:28:14: 28:19}>`
   |
   = note: the temporary is part of an expression at the end of a block;
           consider forcing this temporary to be dropped sooner, before the block's local variables are dropped
help: for example, you could save the expression's value in a new local variable `x` and then make `x` be the expression at the end of the block
   |
LL |     let x = rows.map(|row| row).next(); x
   |     +++++++                           +++

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0597`.