error: Undefined Behavior: constructing invalid value: encountered 0x02, but expected a boolean
  --> $DIR/typed-swap-invalid-scalar.rs:LL:CC
   |
LL |         typed_swap(a, b);
   |         ^^^^^^^^^^^^^^^^ constructing invalid value: encountered 0x02, but expected a boolean
   |
   = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior
   = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information
   = note: BACKTRACE:
   = note: inside `invalid_scalar` at $DIR/typed-swap-invalid-scalar.rs:LL:CC
note: inside `main`
  --> $DIR/typed-swap-invalid-scalar.rs:LL:CC
   |
LL |     invalid_scalar();
   |     ^^^^^^^^^^^^^^^^

note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace

error: aborting due to 1 previous error