rust/tests/fail/stacked_borrows/box_exclusive_violation1.stderr
2022-08-31 17:32:39 +02:00

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error: Undefined Behavior: attempting a write access using <TAG> at ALLOC[0x0], but that tag does not exist in the borrow stack for this location
--> $DIR/box_exclusive_violation1.rs:LL:CC
|
LL | *LEAK = 7;
| ^^^^^^^^^
| |
| attempting a write access using <TAG> at ALLOC[0x0], but that tag does not exist in the borrow stack for this location
| this error occurs as part of an access at ALLOC[0x0..0x4]
|
= 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 SharedReadOnly retag at offsets [0x0..0x4]
--> $DIR/box_exclusive_violation1.rs:LL:CC
|
LL | LEAK = x as *const _ as *mut _;
| ^
help: <TAG> was later invalidated at offsets [0x0..0x4] by a write access
--> $DIR/box_exclusive_violation1.rs:LL:CC
|
LL | *our = 5;
| ^^^^^^^^
= note: BACKTRACE:
= note: inside `unknown_code_2` at $DIR/box_exclusive_violation1.rs:LL:CC
note: inside `demo_box_advanced_unique` at $DIR/box_exclusive_violation1.rs:LL:CC
--> $DIR/box_exclusive_violation1.rs:LL:CC
|
LL | unknown_code_2();
| ^^^^^^^^^^^^^^^^
note: inside `main` at $DIR/box_exclusive_violation1.rs:LL:CC
--> $DIR/box_exclusive_violation1.rs:LL:CC
|
LL | demo_box_advanced_unique(Box::new(0));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace
error: aborting due to previous error