diff --git a/Cargo.toml b/Cargo.toml
index b60e760dab..cb34078b0d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -43,7 +43,7 @@ bitpacking = { version = "0.9.2", default-features = false, features = [
     "bitpacker4x",
 ] }
 census = "0.4.2"
-rustc-hash = "1.1.0"
+rustc-hash = "2.0.0"
 thiserror = "1.0.30"
 htmlescape = "0.3.1"
 fail = { version = "0.5.0", optional = true }
diff --git a/bitpacker/src/filter_vec/mod.rs b/bitpacker/src/filter_vec/mod.rs
index 5a2ad64fbd..6cf67699aa 100644
--- a/bitpacker/src/filter_vec/mod.rs
+++ b/bitpacker/src/filter_vec/mod.rs
@@ -36,6 +36,7 @@ const IMPLS: [FilterImplPerInstructionSet; 1] = [FilterImplPerInstructionSet::Sc
 
 impl FilterImplPerInstructionSet {
     #[inline]
+    #[allow(unused_variables)] // on non-x86_64, code is unused.
     fn from(code: u8) -> FilterImplPerInstructionSet {
         #[cfg(target_arch = "x86_64")]
         if code == FilterImplPerInstructionSet::AVX2 as u8 {
diff --git a/columnar/src/columnar/writer/column_operation.rs b/columnar/src/columnar/writer/column_operation.rs
index 990e51a866..1297a0be94 100644
--- a/columnar/src/columnar/writer/column_operation.rs
+++ b/columnar/src/columnar/writer/column_operation.rs
@@ -122,7 +122,6 @@ impl<T> From<T> for ColumnOperation<T> {
 // In order to limit memory usage, and in order
 // to benefit from the stacker, we do this by serialization our data
 // as "Symbols".
-#[expect(clippy::from_over_into)]
 pub(super) trait SymbolValue: Clone + Copy {
     // Serializes the symbol into the given buffer.
     // Returns the number of bytes written into the buffer.
diff --git a/common/src/lib.rs b/common/src/lib.rs
index 519920c301..cbe13c9511 100644
--- a/common/src/lib.rs
+++ b/common/src/lib.rs
@@ -20,7 +20,7 @@ pub use datetime::{DateTime, DateTimePrecision};
 pub use group_by::GroupByIteratorExtended;
 pub use json_path_writer::JsonPathWriter;
 pub use ownedbytes::{OwnedBytes, StableDeref};
-pub use serialize::*;
+pub use serialize::{BinarySerializable, DeserializeFrom, FixedSize};
 pub use vint::{
     read_u32_vint, read_u32_vint_no_advance, serialize_vint_u32, write_u32_vint, VInt, VIntU128,
 };
@@ -134,7 +134,7 @@ pub(crate) mod test {
 
     use proptest::prelude::*;
 
-    use super::{f64_to_u64, i64_to_u64, u64_to_f64, u64_to_i64, BinarySerializable, FixedSize};
+    use super::{f64_to_u64, i64_to_u64, u64_to_f64, u64_to_i64};
 
     fn test_i64_converter_helper(val: i64) {
         assert_eq!(u64_to_i64(i64_to_u64(val)), val);
@@ -144,12 +144,6 @@ pub(crate) mod test {
         assert_eq!(u64_to_f64(f64_to_u64(val)), val);
     }
 
-    pub(crate) fn fixed_size_test<O: BinarySerializable + FixedSize + Default>() {
-        let mut buffer = Vec::new();
-        O::default().serialize(&mut buffer).unwrap();
-        assert_eq!(buffer.len(), O::SIZE_IN_BYTES);
-    }
-
     proptest! {
         #[test]
         fn test_f64_converter_monotonicity_proptest((left, right) in (proptest::num::f64::NORMAL, proptest::num::f64::NORMAL)) {
diff --git a/src/aggregation/bucket/term_agg.rs b/src/aggregation/bucket/term_agg.rs
index c2e235712b..56a0f181da 100644
--- a/src/aggregation/bucket/term_agg.rs
+++ b/src/aggregation/bucket/term_agg.rs
@@ -1232,8 +1232,8 @@ mod tests {
     #[test]
     fn terms_aggregation_min_doc_count_special_case() -> crate::Result<()> {
         let terms_per_segment = vec![
-            vec!["terma", "terma", "termb", "termb", "termb", "termc"],
-            vec!["terma", "terma", "termb", "termc", "termc"],
+            vec!["terma", "terma", "termb", "termb", "termb"],
+            vec!["terma", "terma", "termb"],
         ];
 
         let index = get_test_index_from_terms(false, &terms_per_segment)?;
@@ -1255,8 +1255,6 @@ mod tests {
         assert_eq!(res["my_texts"]["buckets"][0]["doc_count"], 4);
         assert_eq!(res["my_texts"]["buckets"][1]["key"], "termb");
         assert_eq!(res["my_texts"]["buckets"][1]["doc_count"], 0);
-        assert_eq!(res["my_texts"]["buckets"][2]["key"], "termc");
-        assert_eq!(res["my_texts"]["buckets"][2]["doc_count"], 0);
         assert_eq!(res["my_texts"]["sum_other_doc_count"], 0);
         assert_eq!(res["my_texts"]["doc_count_error_upper_bound"], 0);