| error: Undefined Behavior: reborrow through <TAG> at ALLOC[0x4] is forbidden |
| --> $DIR/return_invalid_shr_option.rs:LL:CC |
| | |
| LL | ret |
| | ^^^ reborrow through <TAG> at ALLOC[0x4] is forbidden |
| | |
| = 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: the accessed tag <TAG> is a child of the conflicting tag <TAG> |
| = help: the conflicting tag <TAG> has state Disabled which forbids this reborrow (acting as a child read access) |
| help: the accessed tag <TAG> was created here |
| --> $DIR/return_invalid_shr_option.rs:LL:CC |
| | |
| LL | let ret = Some(unsafe { &(*xraw).1 }); |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
| help: the conflicting tag <TAG> was created here, in the initial state Frozen |
| --> $DIR/return_invalid_shr_option.rs:LL:CC |
| | |
| LL | let ret = Some(unsafe { &(*xraw).1 }); |
| | ^^^^^^^^^^ |
| help: the conflicting tag <TAG> later transitioned to Disabled due to a foreign write access at offsets [0x0..0x8] |
| --> $DIR/return_invalid_shr_option.rs:LL:CC |
| | |
| LL | unsafe { *xraw = (42, 23) }; // unfreeze |
| | ^^^^^^^^^^^^^^^^ |
| = help: this transition corresponds to a loss of read permissions |
| = note: BACKTRACE (of the first span): |
| = note: inside `foo` at $DIR/return_invalid_shr_option.rs:LL:CC |
| note: inside `main` |
| --> $DIR/return_invalid_shr_option.rs:LL:CC |
| | |
| LL | match foo(&mut (1, 2)) { |
| | ^^^^^^^^^^^^^^^^ |
| |
| note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace |
| |
| error: aborting due to 1 previous error |
| |
