replace unwrap, use vec in bench

fastfield_codecs/benches/bench.rs

@@ -27,7 +27,8 @@ mod tests {
     }
 
     fn value_iter() -> impl Iterator<Item = u64> {
-        0..20_000
+        let data = (0..20_000).collect::<Vec<_>>();
+        data.into_iter()
     }
     fn bench_get<S: FastFieldCodecSerializer, R: FastFieldCodecReader>(
         b: &mut Bencher,

fastfield_codecs/src/linearinterpol.rs

@@ -209,7 +209,7 @@ impl FastFieldCodecSerializer for LinearInterpolFastFieldSerializer {
                 distance(calculated_value, actual_value)
             })
             .max()
-            .unwrap();
+            .unwrap_or(0);
 
         // the theory would be that we don't have the actual max_distance, but we are close within 50%
         // threshold.