error[E0521]: borrowed data escapes outside of function
  --> $DIR/closure-bounds-static-cant-capture-borrowed.rs:5:5
   |
LL |   fn foo(x: &()) {
   |          -  - let's call the lifetime of this reference `'1`
   |          |
   |          `x` is a reference that is only valid in the function body
LL | /     bar(|| {
LL | |
LL | |
LL | |         let _ = x;
LL | |     })
   | |      ^
   | |      |
   | |______`x` escapes the function body here
   |        argument requires that `'1` must outlive `'static`

error[E0373]: closure may outlive the current function, but it borrows `x`, which is owned by the current function
  --> $DIR/closure-bounds-static-cant-capture-borrowed.rs:5:9
   |
LL |     bar(|| {
   |         ^^ may outlive borrowed value `x`
...
LL |         let _ = x;
   |                 - `x` is borrowed here
   |
note: function requires argument type to outlive `'static`
  --> $DIR/closure-bounds-static-cant-capture-borrowed.rs:5:5
   |
LL | /     bar(|| {
LL | |
LL | |
LL | |         let _ = x;
LL | |     })
   | |______^
help: to force the closure to take ownership of `x` (and any other referenced variables), use the `move` keyword
   |
LL |     bar(move || {
   |         ++++

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0373, E0521.
For more information about an error, try `rustc --explain E0373`.