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error: Undefined Behavior: read access through <TAG> at ALLOC[0x5] is forbidden
--> tests/fail/tree_borrows/error-range.rs:LL:CC
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LL | rmut[5] += 1;
| ^^^^^^^^^^^^ Undefined Behavior occurred here
|
= help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental
= help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information
= help: the accessed tag <TAG> has state Disabled which forbids this child read access
help: the accessed tag <TAG> was created here, in the initial state Reserved
--> tests/fail/tree_borrows/error-range.rs:LL:CC
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LL | let rmut = &mut *addr_of_mut!(data[0..6]);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: the accessed tag <TAG> later transitioned to Disabled due to a foreign write access at offsets [0x5..0x6]
--> tests/fail/tree_borrows/error-range.rs:LL:CC
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LL | data[5] = 1;
| ^^^^^^^^^^^
= help: this transition corresponds to a loss of read permissions
= note: BACKTRACE (of the first span):
= note: inside `main` at tests/fail/tree_borrows/error-range.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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