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error: Undefined Behavior: constructing invalid value: encountered a dangling box (0x18[noalloc] has no provenance)
--> tests/fail/dangling_pointers/deref_dangling_box.rs:LL:CC
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LL | let _val = unsafe { addr_of_mut!(**outer) };
| ^^^^^^^^^^^^^^^^^^^^^ Undefined Behavior occurred here
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= help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior
= help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information
= note: BACKTRACE:
= note: inside `main` at RUSTLIB/core/src/ptr/mod.rs:LL:CC
= note: this error originates in the macro `addr_of_mut` (in Nightly builds, run with -Z macro-backtrace for more info)
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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