error: this block may be rewritten with the `?` operator
  --> $DIR/question_mark.rs:11:5
   |
LL | /     if a.is_none() {
LL | |         return None;
LL | |     }
   | |_____^ help: replace_it_with: `a?;`
   |
   = note: `-D clippy::question-mark` implied by `-D warnings`

error: this block may be rewritten with the `?` operator
  --> $DIR/question_mark.rs:56:9
   |
LL | /         if (self.opt).is_none() {
LL | |             return None;
LL | |         }
   | |_________^ help: replace_it_with: `(self.opt)?;`

error: this block may be rewritten with the `?` operator
  --> $DIR/question_mark.rs:60:9
   |
LL | /         if self.opt.is_none() {
LL | |             return None
LL | |         }
   | |_________^ help: replace_it_with: `self.opt?;`

error: this block may be rewritten with the `?` operator
  --> $DIR/question_mark.rs:64:17
   |
LL |           let _ = if self.opt.is_none() {
   |  _________________^
LL | |             return None;
LL | |         } else {
LL | |             self.opt
LL | |         };
   | |_________^ help: replace_it_with: `Some(self.opt?)`

error: this block may be rewritten with the `?` operator
  --> $DIR/question_mark.rs:81:9
   |
LL | /         if self.opt.is_none() {
LL | |             return None;
LL | |         }
   | |_________^ help: replace_it_with: `self.opt.as_ref()?;`

error: this block may be rewritten with the `?` operator
  --> $DIR/question_mark.rs:89:9
   |
LL | /         if self.opt.is_none() {
LL | |             return None;
LL | |         }
   | |_________^ help: replace_it_with: `self.opt.as_ref()?;`

error: this block may be rewritten with the `?` operator
  --> $DIR/question_mark.rs:97:9
   |
LL | /         if self.opt.is_none() {
LL | |             return None;
LL | |         }
   | |_________^ help: replace_it_with: `self.opt.as_ref()?;`

error: aborting due to 7 previous errors