| error: Undefined Behavior: attempting deallocation using <TAG> at ALLOC, but that tag does not exist in the borrow stack for this location |
| --> RUSTLIB/alloc/src/alloc.rs:LL:CC |
| | |
| LL | unsafe { __rust_dealloc(ptr, layout.size(), layout.align()) } |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ attempting deallocation using <TAG> at ALLOC, but that tag does not exist in the borrow stack for this location |
| | |
| = 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..0x1] |
| --> $DIR/illegal_deALLOC.rs:LL:CC |
| | |
| LL | let ptr2 = (&mut *ptr1) as *mut u8; |
| | ^^^^^^^^^^^^ |
| help: <TAG> was later invalidated at offsets [0x0..0x1] by a write access |
| --> $DIR/illegal_deALLOC.rs:LL:CC |
| | |
| LL | ptr1.write(0); |
| | ^^^^^^^^^^^^^ |
| = note: BACKTRACE (of the first span): |
| = note: inside `std::alloc::dealloc` at RUSTLIB/alloc/src/alloc.rs:LL:CC |
| note: inside `main` |
| --> $DIR/illegal_deALLOC.rs:LL:CC |
| | |
| LL | dealloc(ptr2, Layout::from_size_align_unchecked(1, 1)); |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
| |
| note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace |
| |
| error: aborting due to 1 previous error |
| |
