1 error: unsupported operation: unsized locals are not supported
2 --> $DIR/unsized-local.rs:LL:CC
4 LL | let x = *(Box::new(A) as Box<dyn Foo>);
5 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsized locals are not supported
7 = help: this is likely not a bug in the program; it indicates that the program performed an operation that the interpreter does not support
9 = note: inside `main` at $DIR/unsized-local.rs:LL:CC
11 note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace
13 error: aborting due to previous error