1 error: overly complex generic constant
2 --> $DIR/issue-67945-4.rs:9:13
6 LL | | let x: Option<Box<S>> = None;
10 | |_____^ blocks are not supported in generic constants
12 = help: consider moving this anonymous constant into a `const` function
13 = note: this operation may be supported in the future
15 error: aborting due to previous error