rust/tests/fail/stacked_borrows/unescaped_local.stderr
2022-06-21 11:46:10 -07:00

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error: Undefined Behavior: attempting a write access using <untagged> at ALLOC[0x0], but that tag does not exist in the borrow stack for this location
--> $DIR/unescaped_local.rs:LL:CC
|
LL | *raw = 13;
| ^^^^^^^^^
| |
| attempting a write access using <untagged> 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 most recently created at offsets [0x0..0x4]
--> $DIR/unescaped_local.rs:LL:CC
|
LL | let raw = &mut x as *mut i32 as usize as *mut i32;
| ^^^^^^
help: tag was later invalidated at offsets [0x0..0x4]
--> $DIR/unescaped_local.rs:LL:CC
|
LL | let _ptr = &mut x;
| ^^^^^^
= note: inside `main` at $DIR/unescaped_local.rs:LL:CC
note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace
error: aborting due to previous error