error[E0308]: mismatched types
  --> $DIR/break-while-condition.rs:9:20
   |
LL |           let _: ! = { //~ ERROR mismatched types
   |  ____________________^
LL | |             'a: while break 'a {};
LL | |         };
   | |_________^ expected !, found ()
   |
   = note: expected type `!`
              found type `()`

error[E0308]: mismatched types
  --> $DIR/break-while-condition.rs:16:13
   |
LL | /             while false { //~ ERROR mismatched types
LL | |                 break
LL | |             }
   | |_____________^ expected !, found ()
   |
   = note: expected type `!`
              found type `()`

error[E0308]: mismatched types
  --> $DIR/break-while-condition.rs:24:13
   |
LL | /             while false { //~ ERROR mismatched types
LL | |                 return
LL | |             }
   | |_____________^ expected !, found ()
   |
   = note: expected type `!`
              found type `()`

error: aborting due to 3 previous errors

For more information about this error, try `rustc --explain E0308`.