error: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
  --> $DIR/single_match_else.rs:19:13
   |
LL |       let _ = match ExprNode::Butterflies {
   |  _____________^
LL | |         ExprNode::ExprAddrOf => Some(&NODE),
LL | |         _ => {
LL | |             let x = 5;
LL | |             None
LL | |         },
LL | |     };
   | |_____^
   |
   = note: `-D clippy::single-match-else` implied by `-D warnings`
help: try this
   |
LL ~     let _ = if let ExprNode::ExprAddrOf = ExprNode::Butterflies { Some(&NODE) } else {
LL +         let x = 5;
LL +         None
LL ~     };
   |

error: aborting due to previous error