// This is a copy of illegal_read1.rs, but with #[track_caller] on the test. // This test only checks that our diagnostics do not display the contents of callee. #[rustfmt::skip] // rustfmt bug: https://github.com/rust-lang/rustfmt/issues/5391 fn main() { let mut x = 15; let xraw = &mut x as *mut _; let xref = unsafe { &mut *xraw }; // derived from raw, so using raw is still ok... callee(xraw); let _val = *xref; // ...but any use of raw will invalidate our ref. //~^ ERROR: /read access .* tag does not exist in the borrow stack/ } #[track_caller] fn callee(xraw: *mut i32) { let _val = unsafe { *xraw }; }