error: Undefined Behavior: constructing invalid value: encountered a dangling reference (use-after-free) --> $DIR/dangling_ref3.rs:LL:CC | LL | let _x: &i32 = unsafe { mem::transmute(dangling()) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered a dangling reference (use-after-free) | = 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/dangling_ref3.rs:LL:CC note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace error: aborting due to previous error