--- /dev/null
+error: the function has a cognitive complexity of (3/0)
+ --> $DIR/cognitive_complexity_attr_used.rs:9:4
+ |
+LL | fn kaboom() {
+ | ^^^^^^
+ |
+ = note: `-D clippy::cognitive-complexity` implied by `-D warnings`
+ = help: you could split it up into multiple smaller functions
+
+error: aborting due to previous error
+