error: called `is_some()` after searching an `Iterator` with find. This is more succinctly expressed by calling `any()`.
  --> $DIR/search_is_some.rs:13:13
   |
LL |       let _ = v.iter().find(|&x| {
   |  _____________^
LL | |                               *x < 0
LL | |                           }
LL | |                    ).is_some();
   | |______________________________^
   |
   = note: `-D clippy::search-is-some` implied by `-D warnings`

error: called `is_some()` after searching an `Iterator` with position. This is more succinctly expressed by calling `any()`.
  --> $DIR/search_is_some.rs:19:13
   |
LL |       let _ = v.iter().position(|&x| {
   |  _____________^
LL | |                                   x < 0
LL | |                               }
LL | |                    ).is_some();
   | |______________________________^

error: called `is_some()` after searching an `Iterator` with rposition. This is more succinctly expressed by calling `any()`.
  --> $DIR/search_is_some.rs:25:13
   |
LL |       let _ = v.iter().rposition(|&x| {
   |  _____________^
LL | |                                    x < 0
LL | |                                }
LL | |                    ).is_some();
   | |______________________________^

error: use of a blacklisted/placeholder name `foo`
  --> $DIR/search_is_some.rs:31:9
   |
LL |     let foo = IteratorFalsePositives { foo: 0 };
   |         ^^^
   |
   = note: `-D clippy::blacklisted-name` implied by `-D warnings`

error: aborting due to 4 previous errors