1 // Using a raw invalidates derived `&mut` even for reading.
5 let xraw = xref1 as *mut _;
6 let xref2 = unsafe { &mut *xraw };
7 let _val = unsafe { *xraw }; // use the raw again, this invalidates xref2 *even* with the special read except for uniq refs
8 let _illegal = *xref2; //~ ERROR: /read access .* tag does not exist in the borrow stack/