28 lines
1.3 KiB
Plaintext
28 lines
1.3 KiB
Plaintext
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error: Undefined Behavior: attempting a read access using <untagged> at ALLOC[0x0], but that tag does not exist in the borrow stack for this location
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--> $DIR/outdated_local.rs:LL:CC
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LL | assert_eq!(unsafe { *y }, 1);
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| ^^
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| attempting a read access using <untagged> at ALLOC[0x0], but that tag does not exist in the borrow stack for this location
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| this error occurs as part of an access at ALLOC[0x0..0x4]
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= help: this indicates a potential bug in the program: it performed an invalid operation, but the rules it violated are still experimental
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= help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md for further information
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help: tag was most recently created at offsets [0x0..0x4]
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--> $DIR/outdated_local.rs:LL:CC
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LL | let y: *const i32 = &x;
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| ^^
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help: tag was later invalidated at offsets [0x0..0x4]
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--> $DIR/outdated_local.rs:LL:CC
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LL | x = 1; // this invalidates y by reactivating the lowermost uniq borrow for this local
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| ^^^^^
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= note: inside `main` at $DIR/outdated_local.rs:LL:CC
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note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace
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error: aborting due to previous error
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