rust/tests/fail/stacked_borrows/vtable.stderr
2022-06-29 21:31:27 -04:00

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error: Undefined Behavior: constructing invalid value: encountered vtable pointer does not have permission to read drop function pointer
--> RUSTLIB/core/src/ptr/metadata.rs:LL:CC
|
LL | unsafe { PtrRepr { components: PtrComponents { data_address, metadata } }.const_ptr }
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered vtable pointer does not have permission to read drop function pointer
|
= help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior
= help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information
= note: inside `std::ptr::from_raw_parts::<dyn Foo>` at RUSTLIB/core/src/ptr/metadata.rs:LL:CC
note: inside `uwu` at $DIR/vtable.rs:LL:CC
--> $DIR/vtable.rs:LL:CC
|
LL | core::ptr::from_raw_parts(thin, unsafe { core::mem::transmute(meta) })
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside `main` at $DIR/vtable.rs:LL:CC
--> $DIR/vtable.rs:LL:CC
|
LL | let _ = uwu(ptr, core::mem::transmute(meta));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace
error: aborting due to previous error