| error: Undefined Behavior: attempting a read access using <TAG> at ALLOC[0x0], but that tag does not exist in the borrow stack for this location |
| --> tests/fail/stacked_borrows/illegal_read6.rs:LL:CC |
| | |
| LL | let _val = *raw; |
| | ^^^^ this error occurs as part of an access 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 SharedReadWrite retag at offsets [0x0..0x4] |
| --> tests/fail/stacked_borrows/illegal_read6.rs:LL:CC |
| | |
| LL | let raw = x as *mut _; |
| | ^ |
| help: <TAG> was later invalidated at offsets [0x0..0x4] by a Unique retag |
| --> tests/fail/stacked_borrows/illegal_read6.rs:LL:CC |
| | |
| LL | let x = &mut *x; // kill `raw` |
| | ^^^^^^^ |
| |
| note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace |
| |
| error: aborting due to 1 previous error |
| |
