rust/src/test/ui/nll/borrowed-universal-error-2.stderr

error[E0597]: `v` does not live long enough
  --> $DIR/borrowed-universal-error-2.rs:16:5
   |
LL | fn foo<'a>(x: &'a (u32,)) -> &'a u32 {
   |                --             -- also has lifetime `'a`
   |                |
   |                has lifetime `'a`
LL |     let v = 22;
LL |     &v
   |     ^^ `v` would have to be valid for `'a`...
LL |     //~^ ERROR `v` does not live long enough [E0597]
LL | }
   | - ...but `v` will be dropped here, when the function `foo` returns
   |
   = help: use data from the highlighted arguments which match the `'a` lifetime of the return type
   = note: functions cannot return a borrow to data owned within the function's scope, functions can only return borrows to data passed as arguments
   = note: to learn more, visit <https://doc.rust-lang.org/book/second-edition/ch04-02-references-and-borrowing.html#dangling-references>

error: aborting due to previous error

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