Code in E0139 explanation is not valid anymore

[nagisa]

let result: SomeType = mem::uninitialized();
unsafe { copy_nonoverlapping(&v, &result) };
result // `v` transmuted to type `SomeType`

std::ptr::copy_nonoverlapping takes 3 arguments, but only 2 are provided. It also does not typecheck anymore either.

[apasel422]

I think this example should just be removed, as std::ptr::copy_nonoverlapping requires its source and destination types to be the same. For a "real" manual transmute, someone could transmute the pointers to *const u8 and *mut u8 and then pass the correct number of bytes as the third argument to that function.