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[rust.git] / src / tools / miri / tests / fail / stacked_borrows / aliasing_mut3.stderr
1 error: Undefined Behavior: trying to retag from <TAG> for SharedReadOnly permission at ALLOC[0x0], but that tag does not exist in the borrow stack for this location
2   --> $DIR/aliasing_mut3.rs:LL:CC
3    |
4 LL | pub fn safe(_x: &mut i32, _y: &i32) {}
5    |                           ^^
6    |                           |
7    |                           trying to retag from <TAG> for SharedReadOnly permission at ALLOC[0x0], but that tag does not exist in the borrow stack for this location
8    |                           this error occurs as part of FnEntry retag at ALLOC[0x0..0x4]
9    |
10    = help: this indicates a potential bug in the program: it performed an invalid operation, but the Stacked Borrows rules it violated are still experimental
11    = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md for further information
12 help: <TAG> was created by a SharedReadOnly retag at offsets [0x0..0x4]
13   --> $DIR/aliasing_mut3.rs:LL:CC
14    |
15 LL |     safe_raw(xraw, xshr);
16    |                    ^^^^
17 help: <TAG> was later invalidated at offsets [0x0..0x4] by a Unique FnEntry retag inside this call
18   --> $DIR/aliasing_mut3.rs:LL:CC
19    |
20 LL |     safe_raw(xraw, xshr);
21    |     ^^^^^^^^^^^^^^^^^^^^
22    = note: BACKTRACE:
23    = note: inside `safe` at $DIR/aliasing_mut3.rs:LL:CC
24 note: inside `main`
25   --> $DIR/aliasing_mut3.rs:LL:CC
26    |
27 LL |     safe_raw(xraw, xshr);
28    |     ^^^^^^^^^^^^^^^^^^^^
29
30 note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace
31
32 error: aborting due to previous error
33