diff --git a/cranelift/src/libcretonne/ir/entities.rs b/cranelift/src/libcretonne/ir/entities.rs
index 33b41e5273..1a887452a7 100644
--- a/cranelift/src/libcretonne/ir/entities.rs
+++ b/cranelift/src/libcretonne/ir/entities.rs
@@ -42,11 +42,7 @@ impl EntityRef for Ebb {
 impl Ebb {
     /// Create a new EBB reference from its number. This corresponds to the ebbNN representation.
     pub fn with_number(n: u32) -> Option<Ebb> {
-        if n < u32::MAX {
-            Some(Ebb(n))
-        } else {
-            None
-        }
+        if n < u32::MAX { Some(Ebb(n)) } else { None }
     }
 }
 
diff --git a/cranelift/src/libcretonne/ir/immediates.rs b/cranelift/src/libcretonne/ir/immediates.rs
index a329d74f70..077ea4205f 100644
--- a/cranelift/src/libcretonne/ir/immediates.rs
+++ b/cranelift/src/libcretonne/ir/immediates.rs
@@ -56,11 +56,7 @@ impl FromStr for Imm64 {
         let mut value: u64 = 0;
         let mut digits = 0;
         let negative = s.starts_with('-');
-        let s2 = if negative {
-            &s[1..]
-        } else {
-            s
-        };
+        let s2 = if negative { &s[1..] } else { s };
 
         if s2.starts_with("0x") {
             // Hexadecimal.
diff --git a/cranelift/src/libcretonne/ir/instructions.rs b/cranelift/src/libcretonne/ir/instructions.rs
index ca43a3dc31..9638d660a5 100644
--- a/cranelift/src/libcretonne/ir/instructions.rs
+++ b/cranelift/src/libcretonne/ir/instructions.rs
@@ -95,10 +95,7 @@ impl FromStr for Opcode {
 /// `Box<AuxData>` to store the additional information out of line.
 #[derive(Debug)]
 pub enum InstructionData {
-    Nullary {
-        opcode: Opcode,
-        ty: Type,
-    },
+    Nullary { opcode: Opcode, ty: Type },
     Unary {
         opcode: Opcode,
         ty: Type,
diff --git a/cranelift/src/libcretonne/lib.rs b/cranelift/src/libcretonne/lib.rs
index a4ed7dfecb..7bdda395ab 100644
--- a/cranelift/src/libcretonne/lib.rs
+++ b/cranelift/src/libcretonne/lib.rs
@@ -17,4 +17,5 @@ pub mod settings;
 
 mod constant_hash;
 
-#[cfg(test)]pub mod test_utils;
+#[cfg(test)]
+pub mod test_utils;
diff --git a/cranelift/src/libcretonne/settings.rs b/cranelift/src/libcretonne/settings.rs
index b3cf494954..58731c40bf 100644
--- a/cranelift/src/libcretonne/settings.rs
+++ b/cranelift/src/libcretonne/settings.rs
@@ -227,9 +227,7 @@ pub mod detail {
     #[derive(Clone, Copy)]
     pub enum Detail {
         /// A boolean setting only uses one bit, numbered from LSB.
-        Bool {
-            bit: u8,
-        },
+        Bool { bit: u8 },
 
         /// A numerical setting uses the whole byte.
         Num,