changed crate from hashbrown to std::collections due to be merged

hashbrown in std::collections #629

src/detections/configs.rs

@@ -476,7 +476,7 @@ pub fn load_pivot_keywords(path: &str) {
             .write()
             .unwrap()
             .entry(map[0].to_string())
-            .or_insert(PivotKeyword::new());
+            .or_insert_with(PivotKeyword::new);
 
         PIVOT_KEYWORD
             .write()

src/detections/rule/condition_parser.rs

@@ -5,7 +5,7 @@ use self::selectionnodes::{
     AndSelectionNode, NotSelectionNode, OrSelectionNode, RefSelectionNode, SelectionNode,
 };
 use super::selectionnodes;
-use hashbrown::HashMap;
+use std::collections::HashMap;
 use std::sync::Arc;
 
 lazy_static! {

src/detections/rule/count.rs

@@ -6,7 +6,7 @@ use crate::detections::message::QUIET_ERRORS_FLAG;
 use crate::detections::rule::AggResult;
 use crate::detections::rule::RuleNode;
 use chrono::{DateTime, TimeZone, Utc};
-use hashbrown::HashMap;
+use std::collections::HashMap;
 use serde_json::Value;
 use std::num::ParseIntError;
 use std::path::Path;
@@ -311,10 +311,9 @@ impl CountStrategy for FieldStrategy {
         }
 
         let value = &datas[idx as usize].field_record_value;
-        let key_val = self.value_2_cnt.get_key_value_mut(value);
+        let key_val = self.value_2_cnt.get_mut(value);
         if let Some(kv) = key_val {
-            let (_, val) = kv;
-            *val += 1;
+            *kv += 1;
         } else {
             self.value_2_cnt.insert(value.to_string(), 1);
         }
@@ -326,12 +325,12 @@ impl CountStrategy for FieldStrategy {
         }
 
         let record_value = &datas[idx as usize].field_record_value;
-        let key_val = self.value_2_cnt.get_key_value_mut(record_value);
+        let key_val = self.value_2_cnt.get_mut(record_value);
         if key_val.is_none() {
             return;
         }
 
-        let val: &mut i64 = key_val.unwrap().1;
+        let val: &mut i64 = key_val.unwrap();
         if val <= &mut 1 {
             // 0になる場合はキー自体削除する
             self.value_2_cnt.remove(record_value);

src/detections/rule/mod.rs

@@ -2,7 +2,7 @@ extern crate regex;
 
 use chrono::{DateTime, Utc};
 
-use hashbrown::HashMap;
+use std::collections::HashMap;
 use std::{fmt::Debug, sync::Arc, vec};
 
 use yaml_rust::Yaml;

src/main.rs

@@ -9,7 +9,7 @@ extern crate static_vcruntime;
 use bytesize::ByteSize;
 use chrono::{DateTime, Datelike, Local};
 use evtx::{EvtxParser, ParserSettings};
-use hashbrown::{HashMap, HashSet};
+use std::collections::{HashMap, HashSet};
 use hayabusa::detections::configs::CURRENT_EXE_PATH;
 use hayabusa::detections::configs::{load_pivot_keywords, TargetEventTime, TARGET_EXTENSIONS};
 use hayabusa::detections::detection::{self, EvtxRecordInfo};