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attempt to clarify what the backtrace belongs to when there could be ambiguity
[rust.git] / src / tools / miri / tests / fail / stacked_borrows / aliasing_mut1.stderr
1 error: Undefined Behavior: not granting access to tag <TAG> because that would remove [Unique for <TAG>] which is strongly protected because it is an argument of call ID
2   --> $DIR/aliasing_mut1.rs:LL:CC
3    |
4 LL | pub fn safe(_x: &mut i32, _y: &mut i32) {}
5    |                           ^^ not granting access to tag <TAG> because that would remove [Unique for <TAG>] which is strongly protected because it is an argument of call ID
6    |
7    = help: this indicates a potential bug in the program: it performed an invalid operation, but the Stacked Borrows rules it violated are still experimental
8    = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md for further information
9 help: <TAG> was created by a Unique retag at offsets [0x0..0x4]
10   --> $DIR/aliasing_mut1.rs:LL:CC
11    |
12 LL |     let xraw: *mut i32 = unsafe { mem::transmute(&mut x) };
13    |                                                  ^^^^^^
14 help: <TAG> is this argument
15   --> $DIR/aliasing_mut1.rs:LL:CC
16    |
17 LL | pub fn safe(_x: &mut i32, _y: &mut i32) {}
18    |             ^^
19    = note: BACKTRACE (of the first span):
20    = note: inside `safe` at $DIR/aliasing_mut1.rs:LL:CC
21 note: inside `main`
22   --> $DIR/aliasing_mut1.rs:LL:CC
23    |
24 LL |     safe_raw(xraw, xraw);
25    |     ^^^^^^^^^^^^^^^^^^^^
26
27 note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace
28
29 error: aborting due to previous error
30