diff --git a/Cargo.toml b/Cargo.toml
index ca9a478..005b3ac 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,6 +2,7 @@
 name = "chrono-locale"
 version = "0.1.0"
 authors = ["Alessandro Pellizzari <alex@amiran.it>"]
+# build = "build.rs"
 
 [dependencies]
 chrono = "0.4"
@@ -11,4 +12,5 @@ lazy_static = "1.2"
 [build-dependencies]
 serde = "1"
 serde_json = "1"
+serde_derive = "1"
 walkdir = "2"
diff --git a/rustfmt.toml b/rustfmt.toml
index cc8500e..0cf6f8f 100644
--- a/rustfmt.toml
+++ b/rustfmt.toml
@@ -1,5 +1,5 @@
 max_width = 150
 hard_tabs = true
-normalize_comments = false
-match_block_trailing_comma = true
-closure_block_indent_threshold = 1
+#normalize_comments = false
+#match_block_trailing_comma = true
+#closure_block_indent_threshold = 1
diff --git a/src/lib.rs b/src/lib.rs
index 6fc863a..65361ed 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -65,8 +65,7 @@ impl<'a, I: Iterator<Item = Item<'a>> + Clone> DelayedFormatL10n<I> {
 	}
 
 	/// Makes a new `DelayedFormatL10n` value out of local date and time and UTC offset.
-	pub fn new_with_offset(date: Option<NaiveDate>, time: Option<NaiveTime>, offset: &FixedOffset, items: I, locale: &str) -> DelayedFormatL10n<I>
-	{
+	pub fn new_with_offset(date: Option<NaiveDate>, time: Option<NaiveTime>, offset: &FixedOffset, items: I, locale: &str) -> DelayedFormatL10n<I> {
 		let name_and_diff = (offset.to_string(), offset.to_owned());
 		DelayedFormatL10n {
 			date,
@@ -273,28 +272,36 @@ where
 }
 
 fn short_month(month: usize, locale: &str) -> String {
-	let res = locales::LOCALES.short_months.get(locale)
+	let res = locales::LOCALES
+		.short_months
+		.get(locale)
 		.or_else(|| locales::LOCALES.short_months.get("C"))
 		.unwrap();
 	res.get(month).map(|v| v.to_string()).unwrap_or_else(|| format!("{}", month))
 }
 
 fn long_month(month: usize, locale: &str) -> String {
-	let res = locales::LOCALES.long_months.get(locale)
+	let res = locales::LOCALES
+		.long_months
+		.get(locale)
 		.or_else(|| locales::LOCALES.long_months.get("C"))
 		.unwrap();
 	res.get(month).map(|v| v.to_string()).unwrap_or_else(|| format!("{}", month))
 }
 
 fn short_weekday(day: usize, locale: &str) -> String {
-	let res = locales::LOCALES.short_weekdays.get(locale)
+	let res = locales::LOCALES
+		.short_weekdays
+		.get(locale)
 		.or_else(|| locales::LOCALES.short_weekdays.get("C"))
 		.unwrap();
 	res.get(day).map(|v| v.to_string()).unwrap_or_else(|| format!("{}", day))
 }
 
 fn long_weekday(day: usize, locale: &str) -> String {
-	let res = locales::LOCALES.long_weekdays.get(locale)
+	let res = locales::LOCALES
+		.long_weekdays
+		.get(locale)
 		.or_else(|| locales::LOCALES.long_weekdays.get("C"))
 		.unwrap();
 	res.get(day).map(|v| v.to_string()).unwrap_or_else(|| format!("{}", day))
@@ -355,9 +362,9 @@ mod tests {
 		assert_eq!(dt.formatl("%.6f", "en").to_string(), ".026490");
 		assert_eq!(dt.formatl("%.9f", "en").to_string(), ".026490708");
 		// The following formats are not exposed by chrono and cannot be formatted
-//		assert_eq!(dt.formatl("%3f", "en").to_string(), "026");
-//		assert_eq!(dt.formatl("%6f", "en").to_string(), "026490");
-//		assert_eq!(dt.formatl("%9f", "en").to_string(), "026490708");
+		//		assert_eq!(dt.formatl("%3f", "en").to_string(), "026");
+		//		assert_eq!(dt.formatl("%6f", "en").to_string(), "026490");
+		//		assert_eq!(dt.formatl("%9f", "en").to_string(), "026490708");
 		assert_eq!(dt.formatl("%R", "en").to_string(), "00:34");
 		assert_eq!(dt.formatl("%T", "en").to_string(), "00:34:60");
 		assert_eq!(dt.formatl("%X", "en").to_string(), "00:34:60");
diff --git a/src/locales.rs b/src/locales.rs
index 1b0b67d..e34e5a7 100644
--- a/src/locales.rs
+++ b/src/locales.rs
@@ -11,33 +11,43 @@ pub struct Locales {
 
 lazy_static! {
 	pub static ref LOCALES: Locales = {
-		let mut res = Locales{
+		let mut res = Locales {
 			short_months: HashMap::new(),
 			long_months: HashMap::new(),
 			short_weekdays: HashMap::new(),
 			long_weekdays: HashMap::new(),
 		};
 
-		res.short_months.insert("C".into(), vec!["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]);
+		res.short_months.insert(
+			"C".into(),
+			vec!["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"],
+		);
 
-		res.long_months.insert("C".into(), vec![
-			"January",
-			"February",
-			"March",
-			"April",
-			"May",
-			"June",
-			"July",
-			"August",
-			"September",
-			"October",
-			"November",
-			"December",
-		]);
+		res.long_months.insert(
+			"C".into(),
+			vec![
+				"January",
+				"February",
+				"March",
+				"April",
+				"May",
+				"June",
+				"July",
+				"August",
+				"September",
+				"October",
+				"November",
+				"December",
+			],
+		);
 
-		res.short_weekdays.insert("C".into(), vec!["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]);
+		res.short_weekdays
+			.insert("C".into(), vec!["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]);
 
-		res.long_weekdays.insert("C".into(), vec!["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"]);
+		res.long_weekdays.insert(
+			"C".into(),
+			vec!["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"],
+		);
 
 		res
 	};