From 260b0917b074b00960672a5308edee5c023e44f4 Mon Sep 17 00:00:00 2001
From: Mazdak Farrokhzad <twingoow@gmail.com>
Date: Fri, 1 Mar 2019 11:15:22 +0100
Subject: [PATCH] tools/rustbook: deny(rust_2018_idioms)

---
 src/tools/rustbook/src/main.rs | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/tools/rustbook/src/main.rs b/src/tools/rustbook/src/main.rs
index 5a6246347cc..cfc1bc6d414 100644
--- a/src/tools/rustbook/src/main.rs
+++ b/src/tools/rustbook/src/main.rs
@@ -1,4 +1,5 @@
-//
+#![deny(rust_2018_idioms)]
+
 use clap::{crate_version};
 
 use std::env;
@@ -68,7 +69,7 @@ fn main() {
 }
 
 // Build command implementation
-pub fn build_1(args: &ArgMatches) -> Result1<()> {
+pub fn build_1(args: &ArgMatches<'_>) -> Result1<()> {
     let book_dir = get_book_dir(args);
     let mut book = MDBook1::load(&book_dir)?;
 
@@ -85,7 +86,7 @@ pub fn build_1(args: &ArgMatches) -> Result1<()> {
 }
 
 // Build command implementation
-pub fn build_2(args: &ArgMatches) -> Result2<()> {
+pub fn build_2(args: &ArgMatches<'_>) -> Result2<()> {
     let book_dir = get_book_dir(args);
     let mut book = MDBook2::load(&book_dir)?;
 
@@ -101,7 +102,7 @@ pub fn build_2(args: &ArgMatches) -> Result2<()> {
     Ok(())
 }
 
-fn get_book_dir(args: &ArgMatches) -> PathBuf {
+fn get_book_dir(args: &ArgMatches<'_>) -> PathBuf {
     if let Some(dir) = args.value_of("dir") {
         // Check if path is relative from current dir, or absolute...
         let p = Path::new(dir);