39 lines
1.6 KiB
Plaintext
39 lines
1.6 KiB
Plaintext
error: Undefined Behavior: attempting a read 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 | *our
|
|
| ^^^^
|
|
| |
|
|
| attempting a read 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 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 retag at offsets [0x0..0x4]
|
|
--> $DIR/box_exclusive_violation1.rs:LL:CC
|
|
|
|
|
LL | / fn demo_mut_advanced_unique(mut our: Box<i32>) -> i32 {
|
|
LL | | unknown_code_1(&*our);
|
|
LL | |
|
|
LL | | // This "re-asserts" uniqueness of the reference: After writing, we know
|
|
... |
|
|
LL | | *our
|
|
LL | | }
|
|
| |_^
|
|
help: <TAG> was later invalidated at offsets [0x0..0x4]
|
|
--> $DIR/box_exclusive_violation1.rs:LL:CC
|
|
|
|
|
LL | *LEAK = 7;
|
|
| ^^^^^^^^^
|
|
= note: inside `demo_mut_advanced_unique` at $DIR/box_exclusive_violation1.rs:LL:CC
|
|
note: inside `main` at $DIR/box_exclusive_violation1.rs:LL:CC
|
|
--> $DIR/box_exclusive_violation1.rs:LL:CC
|
|
|
|
|
LL | demo_mut_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
|
|
|