fix clippy::iter_next_slice: use .get(0) instead of .iter().next()
fix clippy::iter_next_slice: use .get(0) instead of .iter().next()

aidancully/rust,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,graydon/rust,graydon/rust,aidancully/rust,graydon/rust