1 error: Undefined Behavior: not granting access to tag <TAG> because that would remove [SharedReadOnly for <TAG>] which is protected because it is an argument of call ID
2 --> $DIR/invalidate_against_protector3.rs:LL:CC
4 LL | unsafe { *x = 0 };
5 | ^^^^^^ not granting access to tag <TAG> because that would remove [SharedReadOnly for <TAG>] which is protected because it is an argument of call ID
7 = help: this indicates a potential bug in the program: it performed an invalid operation, but the Stacked Borrows rules it violated are still experimental
8 = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md for further information
9 help: <TAG> was created here, as the base tag for ALLOC
10 --> $DIR/invalidate_against_protector3.rs:LL:CC
12 LL | let ptr = alloc(Layout::for_value(&0i32)) as *mut i32;
13 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
14 help: <TAG> is this argument
15 --> $DIR/invalidate_against_protector3.rs:LL:CC
17 LL | fn inner(x: *mut i32, _y: &i32) {
20 = note: inside `inner` at $DIR/invalidate_against_protector3.rs:LL:CC
21 note: inside `main` at $DIR/invalidate_against_protector3.rs:LL:CC
22 --> $DIR/invalidate_against_protector3.rs:LL:CC
24 LL | inner(ptr, &*ptr);
27 note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace
29 error: aborting due to previous error