| 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/both_borrows/illegal_write5.rs:LL:CC | |
| | | |
| LL | let _val = *xref; | |
| | ^^^^^ 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 Unique retag at offsets [0x0..0x4] | |
| --> tests/fail/both_borrows/illegal_write5.rs:LL:CC | |
| | | |
| LL | let xref = unsafe { &mut *xraw }; | |
| | ^^^^^^^^^^ | |
| help: <TAG> was later invalidated at offsets [0x0..0x4] by a write access | |
| --> tests/fail/both_borrows/illegal_write5.rs:LL:CC | |
| | | |
| LL | unsafe { *xraw = 15 }; | |
| | ^^^^^^^^^^ | |
| note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace | |
| error: aborting due to 1 previous error | |