error[E0308]: mismatched types
  --> $DIR/issue-52443.rs:12:10
   |
LL |     [(); & { loop { continue } } ]; //~ ERROR mismatched types
   |          ^^^^^^^^^^^^^^^^^^^^^^^
   |          |
   |          expected usize, found reference
   |          help: consider removing the borrow: `{ loop { continue } }`
   |
   = note: expected type `usize`
              found type `&_`

error[E0308]: mismatched types
  --> $DIR/issue-52443.rs:13:17
   |
LL |     [(); loop { break }]; //~ ERROR mismatched types
   |                 ^^^^^ expected (), found usize
   |
   = note: expected type `()`
              found type `usize`

error[E0019]: constant contains unimplemented expression type
  --> $DIR/issue-52443.rs:14:11
   |
LL |     [(); {while true {break}; 0}]; //~ ERROR constant contains unimplemented expression type
   |           ^^^^^^^^^^^^^^^^^^

error[E0015]: calls in constants are limited to constant functions, tuple structs and tuple variants
  --> $DIR/issue-52443.rs:15:21
   |
LL |     [(); { for _ in 0usize.. {}; 0}]; //~ ERROR calls in constants are limited to constant functions
   |                     ^^^^^^^^

error[E0019]: constant contains unimplemented expression type
  --> $DIR/issue-52443.rs:15:21
   |
LL |     [(); { for _ in 0usize.. {}; 0}]; //~ ERROR calls in constants are limited to constant functions
   |                     ^^^^^^^^

error[E0080]: could not evaluate repeat length
  --> $DIR/issue-52443.rs:15:10
   |
LL |     [(); { for _ in 0usize.. {}; 0}]; //~ ERROR calls in constants are limited to constant functions
   |          ^^^^^^^^^^^--------^^^^^^^
   |                     |
   |                     calling non-const fn `<I as std::iter::IntoIterator><std::ops::RangeFrom<usize>>::into_iter`

error: aborting due to 6 previous errors

Some errors occurred: E0015, E0019, E0080, E0308.
For more information about an error, try `rustc --explain E0015`.