error[E0609]: no field `opts` on type `*const Session` --> $DIR/parenthesized-deref-suggestion.rs:7:30 | LL | (sess as *const Session).opts; | ^^^^ | help: `(sess as *const Session)` is a raw pointer; try dereferencing it | LL | (*(sess as *const Session)).opts; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error[E0609]: no field `0` on type `[u32; 1]` --> $DIR/parenthesized-deref-suggestion.rs:10:21 | LL | (x as [u32; 1]).0; | ----------------^ | | | help: instead of using tuple indexing, use array indexing: `(x as [u32; 1])[0]` error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0609`.