update to edition 2021 & fix clippy lints

Cargo.toml

@@ -2,7 +2,7 @@
 name = "rosu-pp"
 version = "0.9.2"
 authors = ["MaxOhn <ohn.m@hotmail.de>"]
-edition = "2018"
+edition = "2021"
 license = "MIT"
 readme = "README.md"
 repository = "https://github.com/MaxOhn/rosu-pp"

src/catch/pp.rs

@@ -555,9 +555,7 @@ mod test {
 
         assert!(
             (target_acc - acc).abs() < 1.0,
-            "Expected: {} | Actual: {}",
+            "Expected: {target_acc} | Actual: {acc}",
-            target_acc,
-            acc
         );
     }
 
@@ -596,9 +594,7 @@ mod test {
 
         assert!(
             (target_acc - acc).abs() < 1.0,
-            "Expected: {} | Actual: {}",
+            "Expected: {target_acc} | Actual: {acc}",
-            target_acc,
-            acc
         );
     }
 

src/parse/error.rs

@@ -36,7 +36,7 @@ impl fmt::Display for ParseError {
             Self::InvalidCurvePoints => f.write_str("invalid curve point"),
             Self::InvalidDecimalNumber => f.write_str("invalid float number"),
             Self::InvalidMode => f.write_str("invalid mode"),
-            Self::MissingField(field) => write!(f, "missing field `{}`", field),
+            Self::MissingField(field) => write!(f, "missing field `{field}`"),
             Self::UnknownHitObjectKind => f.write_str("unsupported hitobject kind"),
         }
     }

src/taiko/skills/rhythm.rs

@@ -143,11 +143,13 @@ impl StrainDecaySkill for Rhythm {
     const STRAIN_DECAY_BASE: f64 = 0.0;
 
     #[inline]
+    #[allow(clippy::misnamed_getters)]
     fn curr_strain(&self) -> f64 {
         self.curr_decay_strain
     }
 
     #[inline]
+    #[allow(clippy::misnamed_getters)]
     fn curr_strain_mut(&mut self) -> &mut f64 {
         &mut self.curr_decay_strain
     }

src/util/float_ext.rs

@@ -55,10 +55,7 @@ mod tests {
 
             assert!(
                 (rounded - expected).abs() <= f32::EPSILON,
-                "expected {} for {}; got {}",
+                "expected {expected} for {value}; got {rounded}"
-                expected,
-                value,
-                rounded,
             );
         }
     }