| error: Undefined Behavior: read access through <TAG> at ALLOC[0x0] is forbidden |
| --> tests/fail/both_borrows/outdated_local.rs:LL:CC |
| | |
| LL | assert_eq!(unsafe { *y }, 1); |
| | ^^ Undefined Behavior occurred here |
| | |
| = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental |
| = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information |
| = help: the accessed tag <TAG> has state Disabled which forbids this child read access |
| help: the accessed tag <TAG> was created here, in the initial state Frozen |
| --> tests/fail/both_borrows/outdated_local.rs:LL:CC |
| | |
| LL | let y: *const i32 = &x; |
| | ^^ |
| help: the accessed tag <TAG> later transitioned to Disabled due to a foreign write access at offsets [0x0..0x4] |
| --> tests/fail/both_borrows/outdated_local.rs:LL:CC |
| | |
| LL | x = 1; // this invalidates y by reactivating the lowermost uniq borrow for this local |
| | ^^^^^ |
| = help: this transition corresponds to a loss of read permissions |
| |
| note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace |
| |
| error: aborting due to 1 previous error |
| |
