| error: Undefined Behavior: attempting a write access using <TAG> at ALLOC[0x0], but that tag only grants SharedReadOnly permission for this location |
| --> tests/fail/both_borrows/illegal_write1.rs:LL:CC |
| | |
| LL | unsafe { *x = 42 }; |
| | ^^^^^^^ |
| | | |
| | attempting a write access using <TAG> at ALLOC[0x0], but that tag only grants SharedReadOnly permission for this location |
| | 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/both_borrows/illegal_write1.rs:LL:CC |
| | |
| LL | let x: *mut u32 = xref as *const _ as *mut _; |
| | ^^^^ |
| = note: BACKTRACE (of the first span): |
| = note: inside `main` at tests/fail/both_borrows/illegal_write1.rs:LL:CC |
| |
| note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace |
| |
| error: aborting due to 1 previous error |
| |
