| error: Undefined Behavior: not granting access to tag <TAG> because that would remove [Unique for <TAG>] which is weakly protected because it is an argument of call ID |
| --> $DIR/box_noalias_violation.rs:LL:CC |
| | |
| LL | *y |
| | ^^ not granting access to tag <TAG> because that would remove [Unique for <TAG>] which is weakly protected because it is an argument of call ID |
| | |
| = 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 SharedReadWrite retag at offsets [0x0..0x4] |
| --> $DIR/box_noalias_violation.rs:LL:CC |
| | |
| LL | let ptr = &mut v as *mut i32; |
| | ^^^^^^ |
| help: <TAG> is this argument |
| --> $DIR/box_noalias_violation.rs:LL:CC |
| | |
| LL | unsafe fn test(mut x: Box<i32>, y: *const i32) -> i32 { |
| | ^^^^^ |
| = note: BACKTRACE (of the first span): |
| = note: inside `test` at $DIR/box_noalias_violation.rs:LL:CC |
| note: inside `main` |
| --> $DIR/box_noalias_violation.rs:LL:CC |
| | |
| LL | test(Box::from_raw(ptr), ptr); |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
| |
| note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace |
| |
| error: aborting due to 1 previous error |
| |
