| error: Undefined Behavior: attempting a write access using <TAG> at ALLOC[0x0], but that tag only grants SharedReadOnly permission for this location |
| --> tests/fail/stacked_borrows/illegal_write3.rs:LL:CC |
| | |
| LL | unsafe { *ptr = 42 }; |
| | ^^^^^^^^^ 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 SharedReadOnly retag at offsets [0x0..0x4] |
| --> tests/fail/stacked_borrows/illegal_write3.rs:LL:CC |
| | |
| LL | let ptr = r#ref as *const _ as *mut _; // raw ptr, with raw tag |
| | ^^^^^ |
| |
| note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace |
| |
| error: aborting due to 1 previous error |
| |
