| 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 |
| --> $DIR/return_pointer_aliasing.rs:LL:CC |
| | |
| LL | unsafe { ptr.read() }; |
| | ^^^^^^^^^^ 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 |
| | |
| = 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 created by a SharedReadWrite retag at offsets [0x0..0x4] |
| --> $DIR/return_pointer_aliasing.rs:LL:CC |
| | |
| LL | / mir! { |
| LL | | { |
| LL | | let x = 0; |
| LL | | let ptr = &raw mut x; |
| ... | |
| LL | | } |
| LL | | } |
| | |_____^ |
| help: <TAG> is this argument |
| --> $DIR/return_pointer_aliasing.rs:LL:CC |
| | |
| LL | unsafe { ptr.read() }; |
| | ^^^^^^^^^^^^^^^^^^^^^ |
| = note: BACKTRACE (of the first span): |
| = note: inside `myfun` at $DIR/return_pointer_aliasing.rs:LL:CC |
| note: inside `main` |
| --> $DIR/return_pointer_aliasing.rs:LL:CC |
| | |
| LL | Call(*ptr = myfun(ptr), after_call) |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
| = note: this error originates in the macro `::core::intrinsics::mir::__internal_remove_let` which comes from the expansion of the macro `mir` (in Nightly builds, run with -Z macro-backtrace for more info) |
| |
| note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace |
| |
| error: aborting due to previous error |
| |
