1 error[E0277]: expected a `FnMut<(char,)>` closure, found `String`
2 --> $DIR/issue-62843.rs:4:32
4 LL | println!("{:?}", line.find(pattern));
5 | ---- ^^^^^^^ the trait `Pattern<'_>` is not implemented for `String`
7 | required by a bound introduced by this call
9 = note: the trait bound `String: Pattern<'_>` is not satisfied
10 = note: required for `String` to implement `Pattern<'_>`
11 note: required by a bound in `core::str::<impl str>::find`
12 --> $SRC_DIR/core/src/str/mod.rs:LL:COL
14 LL | pub fn find<'a, P: Pattern<'a>>(&'a self, pat: P) -> Option<usize> {
15 | ^^^^^^^^^^^ required by this bound in `core::str::<impl str>::find`
16 help: consider borrowing here
18 LL | println!("{:?}", line.find(&pattern));
21 error: aborting due to previous error
23 For more information about this error, try `rustc --explain E0277`.