| error: Undefined Behavior: read access through <TAG> at ALLOC[0x0] is forbidden |
| --> tests/fail/both_borrows/alias_through_mutation.rs:LL:CC |
| | |
| LL | let _val = *target_alias; |
| | ^^^^^^^^^^^^^ 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/alias_through_mutation.rs:LL:CC |
| | |
| LL | *x = &mut *(target as *mut _); |
| | ^^^^^^^^^^^^^^^^^^^^^^^^ |
| help: the accessed tag <TAG> later transitioned to Disabled due to a foreign write access at offsets [0x0..0x4] |
| --> tests/fail/both_borrows/alias_through_mutation.rs:LL:CC |
| | |
| LL | *target = 13; |
| | ^^^^^^^^^^^^ |
| = 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 |
| |
