diff --git a/src/generator/codegen_register.rs b/src/generator/codegen_register.rs
index d9f359e..62bfef0 100644
--- a/src/generator/codegen_register.rs
+++ b/src/generator/codegen_register.rs
@@ -9,8 +9,8 @@ use quote::quote;
 use crate::types::{DataType, Field, MultipleParams, Register, Value};
 
 use super::{
-    util::{self, RustUxTypes},
     CodeGenError,
+    util::{self, RustUxTypes},
 };
 
 /// Generate underlying `T` and its implementation for `RegisterSpec`.
diff --git a/src/integrated.rs b/src/integrated.rs
index aa4ce80..1d610f2 100644
--- a/src/integrated.rs
+++ b/src/integrated.rs
@@ -5,7 +5,7 @@ use thiserror::Error;
 
 use crate::{
     converter, generator,
-    io::{get_xml_gitinfo, XmlGitInfoError},
+    io::{XmlGitInfoError, get_xml_gitinfo},
     types, validator,
 };
 
diff --git a/src/validator.rs b/src/validator.rs
index 439757c..9b92338 100644
--- a/src/validator.rs
+++ b/src/validator.rs
@@ -38,13 +38,17 @@ pub enum ValidationError {
     },
     #[error("address 0x{address:08x} is out of range: \"{name}\"")]
     AddressOutofRange { address: u32, name: String },
-    #[error("field masks are duplicated at 0x{address:08x}: \"{reg_name}\", bits: 0x{duplicated_mask:08x}")]
+    #[error(
+        "field masks are duplicated at 0x{address:08x}: \"{reg_name}\", bits: 0x{duplicated_mask:08x}"
+    )]
     FieldMaskDuplicated {
         address: u32,
         reg_name: String,
         duplicated_mask: u32,
     },
-    #[error("register \"{name}\" at 0x{address:08x} has mask 0x{reg_mask:08x} that doesn't match sum of field masks: 0x{fields_mask:08x}")]
+    #[error(
+        "register \"{name}\" at 0x{address:08x} has mask 0x{reg_mask:08x} that doesn't match sum of field masks: 0x{fields_mask:08x}"
+    )]
     RegisterAndFieldMaskMismatch {
         address: u32,
         name: String,