error: Undefined Behavior: `float_to_int_unchecked` intrinsic called on 2.4028236692093845E+38 which cannot be represented in target type `i128`
  --> $DIR/float_to_int_64_too_big5.rs:LL:CC
   |
LL |     unsafe { float_to_int_unchecked::<f64, i128>(240282366920938463463374607431768211455.0f64); }
   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `float_to_int_unchecked` intrinsic called on 2.4028236692093845E+38 which cannot be represented in target type `i128`
   |
   = 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: inside `main` at $DIR/float_to_int_64_too_big5.rs:LL:CC

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

error: aborting due to previous error