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error: expected `;`, found `#`
  --> $DIR/properly-recover-from-trailing-outer-attribute-in-body-1.rs:4:47
   |
LL |     #[cfg(feature = )]
   |     ------------------ only `;` terminated statements or tail expressions are allowed after this attribute
LL |     [1, 2, 3].iter().map().collect::<String>()
   |                                               ^ expected `;` here
LL |     #[attr]
   |     - unexpected token
   |
help: add `;` here
   |
LL |     [1, 2, 3].iter().map().collect::<String>();
   |                                               +
help: alternatively, consider surrounding the expression with a block
   |
LL |     { [1, 2, 3].iter().map().collect::<String>() }
   |     +                                            +

error: expected statement after outer attribute
  --> $DIR/properly-recover-from-trailing-outer-attribute-in-body-1.rs:5:5
   |
LL |     #[attr]
   |     ^^^^^^^

error: aborting due to 2 previous errors