Function collections::btree::search::search_linear

fn search_linear<BorrowType, K, V, Type, Q: ?Sized>(node: &NodeRef<BorrowType, K, V, Type>, key: &Q) -> (usize, bool) where Q: Ord, K: Borrow<Q>

Unstable (collections #27783)

: library is unlikely to be stabilized with the current layout and name, use std::collections instead