error: unsupported operation: unable to copy parts of a pointer from memory at ALLOC+HALF_PTR
  --> $DIR/copy_half_a_pointer.rs:LL:CC
   |
LL |         let _x = d_alias.read_unaligned();
   |                  ^^^^^^^^^^^^^^^^^^^^^^^^ unable to copy parts of a pointer from memory at ALLOC+HALF_PTR
   |
   = help: this is likely not a bug in the program; it indicates that the program performed an operation that the interpreter does not support
   = note: BACKTRACE:
   = note: inside `main` at $DIR/copy_half_a_pointer.rs:LL:CC

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

error: aborting due to previous error