From c5482f7532c19ff15a196519bfa3e8f767b80469 Mon Sep 17 00:00:00 2001
From: Yegor Bugayenko <yegor256@gmail.com>
Date: Thu, 12 Jan 2023 11:58:03 +0300
Subject: [PATCH] #75 case explained

---
 src/find.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/find.rs b/src/find.rs
index 10693e9..b709cfb 100644
--- a/src/find.rs
+++ b/src/find.rs
@@ -221,6 +221,10 @@ impl FakeRelay {
 #[cfg(test)]
 impl Relay for FakeRelay {
     fn re(&self, _v: u32, _a: &str, _b: &str) -> Result<String> {
+        // It's impossible to do what the following two lines are
+        // doing, because "self" is immutable:
+        // self.g.add(42).unwrap();
+        // Ok("ν42".to_string())
         Ok("ν1".to_string())
     }
 }