diff --git a/src/diff/graph.rs b/src/diff/graph.rs
index 1920662ef..c74e6a0fc 100644
--- a/src/diff/graph.rs
+++ b/src/diff/graph.rs
@@ -253,7 +253,10 @@ impl<'s, 'b> Vertex<'s, 'b> {
         self.lhs_syntax.is_none() && self.rhs_syntax.is_none() && self.parents.is_empty()
     }
 
-    pub(crate) fn new(lhs_syntax: Option<&'s Syntax<'s>>, rhs_syntax: Option<&'s Syntax<'s>>) -> Self {
+    pub(crate) fn new(
+        lhs_syntax: Option<&'s Syntax<'s>>,
+        rhs_syntax: Option<&'s Syntax<'s>>,
+    ) -> Self {
         let parents = Stack::new();
         Vertex {
             neighbours: RefCell::new(None),
diff --git a/src/diff/myers_diff.rs b/src/diff/myers_diff.rs
index 0b3f83011..d404a3eed 100644
--- a/src/diff/myers_diff.rs
+++ b/src/diff/myers_diff.rs
@@ -15,7 +15,10 @@ pub(crate) enum DiffResult<T> {
 
 /// Compute a linear diff between `lhs` and `rhs`. This is the
 /// traditional Myer's diff algorithm.
-pub(crate) fn slice<'a, T: PartialEq + Clone>(lhs: &'a [T], rhs: &'a [T]) -> Vec<DiffResult<&'a T>> {
+pub(crate) fn slice<'a, T: PartialEq + Clone>(
+    lhs: &'a [T],
+    rhs: &'a [T],
+) -> Vec<DiffResult<&'a T>> {
     wu_diff::diff(lhs, rhs)
         .into_iter()
         .map(|result| match result {
@@ -35,7 +38,10 @@ pub(crate) fn slice<'a, T: PartialEq + Clone>(lhs: &'a [T], rhs: &'a [T]) -> Vec
 ///
 /// This is faster when equality checks on `T` are expensive, such as
 /// large strings.
-pub(crate) fn slice_by_hash<'a, T: Eq + Hash>(lhs: &'a [T], rhs: &'a [T]) -> Vec<DiffResult<&'a T>> {
+pub(crate) fn slice_by_hash<'a, T: Eq + Hash>(
+    lhs: &'a [T],
+    rhs: &'a [T],
+) -> Vec<DiffResult<&'a T>> {
     // Compute a unique numeric value for each item, use that for
     // diffing, then return diff results in terms of the original
     // type.
diff --git a/src/display/context.rs b/src/display/context.rs
index 88af360b2..23d567649 100644
--- a/src/display/context.rs
+++ b/src/display/context.rs
@@ -327,7 +327,9 @@ fn match_preceding_blanks(
     res
 }
 
-pub(crate) fn opposite_positions(mps: &[MatchedPos]) -> DftHashMap<LineNumber, HashSet<LineNumber>> {
+pub(crate) fn opposite_positions(
+    mps: &[MatchedPos],
+) -> DftHashMap<LineNumber, HashSet<LineNumber>> {
     let mut res: DftHashMap<LineNumber, HashSet<LineNumber>> = DftHashMap::default();
 
     for mp in mps {