1 error[E0271]: type mismatch resolving `<std::iter::TakeWhile<&mut std::vec::IntoIter<u8>, [closure@$DIR/issue-31173.rs:6:39: 9:6 found_e:_]> as std::iter::Iterator>::Item == &_`
2 --> $DIR/issue-31173.rs:10:10
5 | ^^^^^^ expected u8, found reference
7 = note: expected type `u8`
10 error[E0599]: no method named `collect` found for type `std::iter::Cloned<std::iter::TakeWhile<&mut std::vec::IntoIter<u8>, [closure@$DIR/issue-31173.rs:6:39: 9:6 found_e:_]>>` in the current scope
11 --> $DIR/issue-31173.rs:14:10
14 | ^^^^^^^ method not found in `std::iter::Cloned<std::iter::TakeWhile<&mut std::vec::IntoIter<u8>, [closure@$DIR/issue-31173.rs:6:39: 9:6 found_e:_]>>`
16 = note: the method `collect` exists but the following trait bounds were not satisfied:
17 `&mut std::iter::Cloned<std::iter::TakeWhile<&mut std::vec::IntoIter<u8>, [closure@$DIR/issue-31173.rs:6:39: 9:6 found_e:_]>> : std::iter::Iterator`
18 `std::iter::Cloned<std::iter::TakeWhile<&mut std::vec::IntoIter<u8>, [closure@$DIR/issue-31173.rs:6:39: 9:6 found_e:_]>> : std::iter::Iterator`
20 error: aborting due to 2 previous errors
22 Some errors have detailed explanations: E0271, E0599.
23 For more information about an error, try `rustc --explain E0271`.