Updated dependencies.

src/tasks/day25.rs

@@ -31,23 +31,6 @@ struct STP(i32, i32, i32, i32);
 impl STP {}
 
 impl STP {
-    fn neighbors(&self) -> Vec<Self> {
-        let mut result = Vec::new();
-        for x in -3..=3 {
-            for y in -3..=3 {
-                for z in -3..=3 {
-                    for t in -3..=3 {
-                        let candidate = STP(self.0 + x, self.1 + y, self.2 + z, self.3 + t);
-                        if self.is_neighbor_to(&candidate) {
-                            result.push(candidate);
-                        }
-                    }
-                }
-            }
-        }
-        result
-    }
-
     fn distance(&self, other: &Self) -> u32 {
         ((self.0 - other.0).abs()
             + (self.1 - other.1).abs()
@@ -73,6 +56,7 @@ impl From<&str> for STP {
     }
 }
 
+#[cfg(test)]
 mod test {
     use crate::tasks::day25::solve;