1 error: struct `F` is never constructed
2 --> $DIR/unused-enum.rs:3:8
7 note: the lint level is defined here
8 --> $DIR/unused-enum.rs:1:9
12 = note: `#[deny(dead_code)]` implied by `#[deny(unused)]`
14 error: struct `B` is never constructed
15 --> $DIR/unused-enum.rs:4:8
20 error: enum `E` is never used
21 --> $DIR/unused-enum.rs:6:6
26 error: aborting due to 3 previous errors