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:81:26
   |
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:81:9
   |
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:81:26
   |
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:81:9
   |
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`.