1 error: Undefined Behavior: constructing invalid value: encountered $HEX[ALLOC]<TAG>, but expected a vtable pointer
2 --> $DIR/issue-miri-1112.rs:LL:CC
4 LL | let obj = std::mem::transmute::<FatPointer, *mut FunnyPointer>(obj);
5 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered $HEX[ALLOC]<TAG>, but expected a vtable pointer
7 = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior
8 = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information
10 = note: inside `FunnyPointer::from_data_ptr` at $DIR/issue-miri-1112.rs:LL:CC
11 note: inside `main` at $DIR/issue-miri-1112.rs:LL:CC
12 --> $DIR/issue-miri-1112.rs:LL:CC
14 LL | let _raw: &FunnyPointer = FunnyPointer::from_data_ptr(&hello, &meta as *const _);
15 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
17 note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace
19 error: aborting due to previous error