disable a false positive clippy error
@@ -179,6 +179,7 @@ impl RequestItems {
pub fn headers(&self) -> Result<(HeaderMap<HeaderValue>, HashSet<HeaderName>)> {
let mut headers = HeaderMap::new();
+ #[allow(clippy::mutable_key_type)]
let mut headers_to_unset = HashSet::new();
for item in &self.0 {
match item {
