error[E0373]: closure may outlive the current function, but it borrows `x`, which is owned by the current function --> $DIR/region-borrow-params-issue-29793-big.rs:67:26 | LL | WrapB::new().set(|t: bool| if t { x } else { y }) // (separate errors for `x` vs `y`) | ^^^^^^^^^ - `x` is borrowed here | | | may outlive borrowed value `x` | note: closure is returned here --> $DIR/region-borrow-params-issue-29793-big.rs:67:9 | LL | WrapB::new().set(|t: bool| if t { x } else { y }) // (separate errors for `x` vs `y`) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: to force the closure to take ownership of `x` (and any other referenced variables), use the `move` keyword | LL | WrapB::new().set(move |t: bool| if t { x } else { y }) // (separate errors for `x` vs `y`) | ++++ error[E0373]: closure may outlive the current function, but it borrows `y`, which is owned by the current function --> $DIR/region-borrow-params-issue-29793-big.rs:67:26 | LL | WrapB::new().set(|t: bool| if t { x } else { y }) // (separate errors for `x` vs `y`) | ^^^^^^^^^ - `y` is borrowed here | | | may outlive borrowed value `y` | note: closure is returned here --> $DIR/region-borrow-params-issue-29793-big.rs:67:9 | LL | WrapB::new().set(|t: bool| if t { x } else { y }) // (separate errors for `x` vs `y`) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: to force the closure to take ownership of `y` (and any other referenced variables), use the `move` keyword | LL | WrapB::new().set(move |t: bool| if t { x } else { y }) // (separate errors for `x` vs `y`) | ++++ error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0373`.