| error: Undefined Behavior: trying to retag from <TAG> for SharedReadOnly permission at ALLOC[0x0], but that tag does not exist in the borrow stack for this location |
| --> tests/fail/both_borrows/aliasing_mut3.rs:LL:CC |
| | |
| LL | fn safe(x: &mut i32, y: &i32) { |
| | ^ this error occurs as part of function-entry retag at ALLOC[0x0..0x4] |
| | |
| = help: this indicates a potential bug in the program: it performed an invalid operation, but the Stacked Borrows rules it violated are still experimental |
| = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md for further information |
| help: <TAG> was created by a SharedReadOnly retag at offsets [0x0..0x4] |
| --> tests/fail/both_borrows/aliasing_mut3.rs:LL:CC |
| | |
| LL | safe_raw(xraw, xshr); |
| | ^^^^ |
| help: <TAG> was later invalidated at offsets [0x0..0x4] by a Unique function-entry retag inside this call |
| --> tests/fail/both_borrows/aliasing_mut3.rs:LL:CC |
| | |
| LL | safe_raw(xraw, xshr); |
| | ^^^^^^^^^^^^^^^^^^^^ |
| = note: BACKTRACE (of the first span): |
| = note: inside `safe` at tests/fail/both_borrows/aliasing_mut3.rs:LL:CC |
| note: inside `main` |
| --> tests/fail/both_borrows/aliasing_mut3.rs:LL:CC |
| | |
| LL | safe_raw(xraw, xshr); |
| | ^^^^^^^^^^^^^^^^^^^^ |
| |
| note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace |
| |
| error: aborting due to 1 previous error |
| |
