Fix some compilation errors

- Adjusted the indentation in documentation comments to ensure proper formatting.
- Replaced legacy numeric constants with associated constants.
- Removed unnecessary import of legacy numeric constants.

Signed-off-by: hhwyt <[email protected]>

src/lib.rs

@@ -201,7 +201,7 @@ The `Ready` state contains quite a bit of information, and you need to check and
 by one:
 
 1. Check whether `messages` is empty or not. If not, it means that the node will send messages to
-other nodes:
+    other nodes:
 
     ```rust
     # use slog::{Drain, o};
@@ -226,7 +226,7 @@ other nodes:
     ```
 
 2. Check whether `snapshot` is empty or not. If not empty, it means that the Raft node has received
-a Raft snapshot from the leader and we must apply the snapshot:
+    a Raft snapshot from the leader and we must apply the snapshot:
 
     ```rust
     # use slog::{Drain, o};
@@ -254,8 +254,8 @@ a Raft snapshot from the leader and we must apply the snapshot:
     ```
 
 3. Check whether `committed_entries` is empty or not. If not, it means that there are some newly
-committed log entries which you must apply to the state machine. Of course, after applying, you
-need to update the applied index and resume `apply` later:
+    committed log entries which you must apply to the state machine. Of course, after applying, you
+    need to update the applied index and resume `apply` later:
 
     ```rust
     # use slog::{Drain, o};
@@ -310,7 +310,7 @@ need to update the applied index and resume `apply` later:
     after restarting, *it may work but potential log loss may also be ignored silently*.
 
 4. Check whether `entries` is empty or not. If not empty, it means that there are newly added
-entries but have not been committed yet, we must append the entries to the Raft log:
+    entries but have not been committed yet, we must append the entries to the Raft log:
 
     ```rust
     # use slog::{Drain, o};
@@ -335,8 +335,8 @@ entries but have not been committed yet, we must append the entries to the Raft
     ```
 
 5. Check whether `hs` is empty or not. If not empty, it means that the `HardState` of the node has
-changed. For example, the node may vote for a new leader, or the commit index has been increased.
-We must persist the changed `HardState`:
+    changed. For example, the node may vote for a new leader, or the commit index has been increased.
+    We must persist the changed `HardState`:
 
     ```rust
     # use slog::{Drain, o};
@@ -360,7 +360,7 @@ We must persist the changed `HardState`:
     ```
 
 6. Check whether `persisted_messages` is empty or not. If not, it means that the node will send messages to
-other nodes after persisting hardstate, entries and snapshot:
+    other nodes after persisting hardstate, entries and snapshot:
 
     ```rust
     # use slog::{Drain, o};
@@ -385,8 +385,8 @@ other nodes after persisting hardstate, entries and snapshot:
     ```
 
 7. Call `advance` to notify that the previous work is completed. Get the return value `LightReady`
-and handle its `messages` and `committed_entries` like step 1 and step 3 does. Then call `advance_apply`
-to advance the applied index inside.
+    and handle its `messages` and `committed_entries` like step 1 and step 3 does. Then call `advance_apply`
+    to advance the applied index inside.
 
     ```rust
     # use slog::{Drain, o};
@@ -470,8 +470,8 @@ This process is a two-phase process, during the midst of it the peer group's lea
 **two independent, possibly overlapping peer sets**.
 
 > **Note:** In order to maintain resiliency guarantees  (progress while a majority of both peer sets is
-active), it is recommended to wait until the entire peer group has exited the transition phase
-before taking old, removed peers offline.
+    active), it is recommended to wait until the entire peer group has exited the transition phase
+    before taking old, removed peers offline.
 
 */
 

src/quorum/majority.rs

@@ -7,7 +7,7 @@ use std::collections::hash_set::Iter;
 use std::fmt::Formatter;
 use std::mem::MaybeUninit;
 use std::ops::{Deref, DerefMut};
-use std::{cmp, slice, u64};
+use std::{cmp, slice};
 
 /// A set of IDs that uses majority quorums to make decisions.
 #[derive(Clone, Debug, Default, PartialEq, Eq)]

src/raw_node.rs

@@ -218,6 +218,7 @@ impl Ready {
     /// MustSync is false if and only if
     /// 1. no HardState or only its commit is different from before
     /// 2. no Entries and Snapshot
+    /// 
     /// If it's false, an asynchronous write of HardState is permissible before calling
     /// [`RawNode::on_persist_ready`] or [`RawNode::advance`] or its families.
     #[inline]

src/storage.rs

@@ -579,7 +579,7 @@ mod test {
             new_entry(5, 5),
             new_entry(6, 6),
         ];
-        let max_u64 = u64::max_value();
+        let max_u64 = u64::MAX;
         let mut tests = vec![
             (
                 2,

src/util.rs

@@ -5,7 +5,6 @@
 
 use std::fmt;
 use std::fmt::Write;
-use std::u64;
 
 use slog::{OwnedKVList, Record, KV};