diff --git a/src/assignment_resolver.rs b/src/assignment_resolver.rs
index b1fcd6e..777035e 100644
--- a/src/assignment_resolver.rs
+++ b/src/assignment_resolver.rs
@@ -45,10 +45,7 @@ impl<'src: 'run, 'run> AssignmentResolver<'src, 'run> {
         length: 0,
         kind: TokenKind::Unspecified,
       };
-      return Err(CompileError {
-        kind: Internal { message },
-        token,
-      });
+      return Err(CompileError::new(token, Internal { message }));
     }
 
     self.stack.pop();
diff --git a/src/compile_error.rs b/src/compile_error.rs
index f36a393..0756878 100644
--- a/src/compile_error.rs
+++ b/src/compile_error.rs
@@ -3,20 +3,27 @@ use super::*;
 #[derive(Debug, PartialEq)]
 pub(crate) struct CompileError<'src> {
   pub(crate) token: Token<'src>,
-  pub(crate) kind: CompileErrorKind<'src>,
+  pub(crate) kind: Box<CompileErrorKind<'src>>,
 }
 
 impl<'src> CompileError<'src> {
   pub(crate) fn context(&self) -> Token<'src> {
     self.token
   }
+
+  pub(crate) fn new(token: Token<'src>, kind: CompileErrorKind<'src>) -> CompileError<'src> {
+    Self {
+      token,
+      kind: Box::new(kind),
+    }
+  }
 }
 
 impl Display for CompileError<'_> {
   fn fmt(&self, f: &mut Formatter) -> Result<(), fmt::Error> {
     use CompileErrorKind::*;
 
-    match &self.kind {
+    match &*self.kind {
       AliasShadowsRecipe { alias, recipe_line } => {
         write!(
           f,
diff --git a/src/justfile.rs b/src/justfile.rs
index ccad90a..26f06ea 100644
--- a/src/justfile.rs
+++ b/src/justfile.rs
@@ -257,7 +257,7 @@ impl<'src> Justfile<'src> {
 
     let mut ran = BTreeSet::new();
     for (recipe, arguments) in grouped {
-      self.run_recipe(&context, recipe, arguments, &dotenv, search, &mut ran)?;
+      Self::run_recipe(&context, recipe, arguments, &dotenv, search, &mut ran)?;
     }
 
     Ok(())
@@ -276,7 +276,6 @@ impl<'src> Justfile<'src> {
   }
 
   fn run_recipe(
-    &self,
     context: &RecipeContext<'src, '_>,
     recipe: &Recipe<'src>,
     arguments: &[&str],
@@ -314,7 +313,7 @@ impl<'src> Justfile<'src> {
         .map(|argument| evaluator.evaluate_expression(argument))
         .collect::<RunResult<Vec<String>>>()?;
 
-      self.run_recipe(
+      Self::run_recipe(
         context,
         recipe,
         &arguments.iter().map(String::as_ref).collect::<Vec<&str>>(),
@@ -336,7 +335,7 @@ impl<'src> Justfile<'src> {
           evaluated.push(evaluator.evaluate_expression(argument)?);
         }
 
-        self.run_recipe(
+        Self::run_recipe(
           context,
           recipe,
           &evaluated.iter().map(String::as_ref).collect::<Vec<&str>>(),
diff --git a/src/lexer.rs b/src/lexer.rs
index 536eea7..06268eb 100644
--- a/src/lexer.rs
+++ b/src/lexer.rs
@@ -209,12 +209,12 @@ impl<'src> Lexer<'src> {
       length: 0,
       kind: Unspecified,
     };
-    CompileError {
-      kind: CompileErrorKind::Internal {
+    CompileError::new(
+      token,
+      CompileErrorKind::Internal {
         message: message.into(),
       },
-      token,
-    }
+    )
   }
 
   /// Create a compilation error with `kind`
@@ -245,14 +245,11 @@ impl<'src> Lexer<'src> {
       length,
     };
 
-    CompileError { token, kind }
+    CompileError::new(token, kind)
   }
 
   fn unterminated_interpolation_error(interpolation_start: Token<'src>) -> CompileError<'src> {
-    CompileError {
-      token: interpolation_start,
-      kind: UnterminatedInterpolation,
-    }
+    CompileError::new(interpolation_start, UnterminatedInterpolation)
   }
 
   /// True if `text` could be an identifier
@@ -796,7 +793,7 @@ impl<'src> Lexer<'src> {
     let mut escape = false;
 
     loop {
-      if self.next == None {
+      if self.next.is_none() {
         return Err(self.error(kind.unterminated_error_kind()));
       } else if kind.processes_escape_sequences() && self.next_is('\\') && !escape {
         escape = true;
@@ -993,7 +990,7 @@ mod tests {
             column,
             length,
           },
-          kind,
+          kind: Box::new(kind),
         };
         assert_eq!(have, want);
       }
@@ -2276,20 +2273,19 @@ mod tests {
   fn presume_error() {
     let compile_error = Lexer::new("!").presume('-').unwrap_err();
     assert_matches!(
-      compile_error,
-      CompileError {
-        token: Token {
-          offset: 0,
-          line:   0,
-          column: 0,
-          length: 0,
-          src:    "!",
-          kind:   Unspecified,
-        },
-        kind:  Internal {
-          ref message,
-        },
-      } if message == "Lexer presumed character `-`"
+      compile_error.token,
+      Token {
+        offset: 0,
+        line: 0,
+        column: 0,
+        length: 0,
+        src: "!",
+        kind: Unspecified,
+      }
+    );
+    assert_matches!(&*compile_error.kind,
+        Internal { ref message }
+        if message == "Lexer presumed character `-`"
     );
 
     assert_eq!(
diff --git a/src/load_dotenv.rs b/src/load_dotenv.rs
index b738e61..a83da15 100644
--- a/src/load_dotenv.rs
+++ b/src/load_dotenv.rs
@@ -39,7 +39,7 @@ fn load_from_file(path: &Path) -> RunResult<'static, BTreeMap<String, String>> {
   // https://github.com/dotenv-rs/dotenv/issues/13
   #![allow(deprecated)]
 
-  let iter = dotenv::from_path_iter(&path)?;
+  let iter = dotenv::from_path_iter(path)?;
   let mut dotenv = BTreeMap::new();
   for result in iter {
     let (key, value) = result?;
diff --git a/src/parser.rs b/src/parser.rs
index effb9ca..cb197e0 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -396,10 +396,11 @@ impl<'tokens, 'src> Parser<'tokens, 'src> {
   /// Parse an expression, e.g. `1 + 2`
   fn parse_expression(&mut self) -> CompileResult<'src, Expression<'src>> {
     if self.depth == if cfg!(windows) { 48 } else { 256 } {
-      return Err(CompileError {
-        token: self.next()?,
-        kind: CompileErrorKind::ParsingRecursionDepthExceeded,
-      });
+      let token = self.next()?;
+      return Err(CompileError::new(
+        token,
+        CompileErrorKind::ParsingRecursionDepthExceeded,
+      ));
     }
 
     self.depth += 1;
@@ -904,7 +905,7 @@ mod tests {
             column,
             length,
           },
-          kind,
+          kind: Box::new(kind),
         };
         assert_eq!(have, want);
       }
diff --git a/src/platform.rs b/src/platform.rs
index e84dcce..965fac2 100644
--- a/src/platform.rs
+++ b/src/platform.rs
@@ -21,14 +21,14 @@ impl PlatformInterface for Platform {
     use std::os::unix::fs::PermissionsExt;
 
     // get current permissions
-    let mut permissions = fs::metadata(&path)?.permissions();
+    let mut permissions = fs::metadata(path)?.permissions();
 
     // set the execute bit
     let current_mode = permissions.mode();
     permissions.set_mode(current_mode | 0o100);
 
     // set the new permissions
-    fs::set_permissions(&path, permissions)
+    fs::set_permissions(path, permissions)
   }
 
   fn signal_from_exit_status(exit_status: process::ExitStatus) -> Option<i32> {
diff --git a/src/string_kind.rs b/src/string_kind.rs
index edfbe46..06b530f 100644
--- a/src/string_kind.rs
+++ b/src/string_kind.rs
@@ -84,12 +84,9 @@ impl StringKind {
   }
 
   pub(crate) fn from_token_start(token_start: &str) -> Option<Self> {
-    for &kind in Self::ALL {
-      if token_start.starts_with(kind.delimiter()) {
-        return Some(kind);
-      }
-    }
-
-    None
+    Self::ALL
+      .iter()
+      .find(|&&kind| token_start.starts_with(kind.delimiter()))
+      .copied()
   }
 }
diff --git a/src/testing.rs b/src/testing.rs
index 89dfd46..5988e48 100644
--- a/src/testing.rs
+++ b/src/testing.rs
@@ -79,7 +79,7 @@ pub(crate) fn analysis_error(
           column,
           length,
         },
-        kind,
+        kind: Box::new(kind),
       };
       assert_eq!(have, want);
     }
diff --git a/src/token.rs b/src/token.rs
index d86cef6..c360f32 100644
--- a/src/token.rs
+++ b/src/token.rs
@@ -16,7 +16,7 @@ impl<'src> Token<'src> {
   }
 
   pub(crate) fn error(&self, kind: CompileErrorKind<'src>) -> CompileError<'src> {
-    CompileError { token: *self, kind }
+    CompileError::new(*self, kind)
   }
 }