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error: Undefined Behavior: attempting deallocation using <TAG> at ALLOC, but that tag does not exist in the borrow stack for this location
--> tests/fail/stacked_borrows/illegal_deALLOC.rs:LL:CC
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LL | dealloc(ptr2, Layout::from_size_align_unchecked(1, 1));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Undefined Behavior occurred here
|
= 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]
--> tests/fail/stacked_borrows/illegal_deALLOC.rs:LL:CC
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LL | let ptr2 = (&mut *ptr1) as *mut u8;
| ^^^^^^^^^^^^
help: <TAG> was later invalidated at offsets [0x0..0x1] by a write access
--> tests/fail/stacked_borrows/illegal_deALLOC.rs:LL:CC
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LL | ptr1.write(0);
| ^^^^^^^^^^^^^
= note: BACKTRACE (of the first span):
= note: inside `main` at tests/fail/stacked_borrows/illegal_deALLOC.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
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