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_small3.rs:LL:CC | LL | unsafe { float_to_int_unchecked::(-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_small3.rs:LL:CC note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace error: aborting due to previous error