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-rw-r--r--src/tools/linkchecker/Cargo.toml1
-rw-r--r--src/tools/linkchecker/main.rs4
2 files changed, 4 insertions, 1 deletions
diff --git a/src/tools/linkchecker/Cargo.toml b/src/tools/linkchecker/Cargo.toml
index d6b7dafea40..0994cd20662 100644
--- a/src/tools/linkchecker/Cargo.toml
+++ b/src/tools/linkchecker/Cargo.toml
@@ -2,6 +2,7 @@
 name = "linkchecker"
 version = "0.1.0"
 authors = ["Alex Crichton <alex@alexcrichton.com>"]
+edition = "2018"
 
 [[bin]]
 name = "linkchecker"
diff --git a/src/tools/linkchecker/main.rs b/src/tools/linkchecker/main.rs
index 2cf0fcfd34c..af704ce260d 100644
--- a/src/tools/linkchecker/main.rs
+++ b/src/tools/linkchecker/main.rs
@@ -14,6 +14,8 @@
 //! A few whitelisted exceptions are allowed as there's known bugs in rustdoc,
 //! but this should catch the majority of "broken link" cases.
 
+#![deny(rust_2018_idioms)]
+
 use std::collections::hash_map::Entry;
 use std::collections::{HashMap, HashSet};
 use std::env;
@@ -21,7 +23,7 @@ use std::fs;
 use std::path::{Path, PathBuf, Component};
 use std::rc::Rc;
 
-use Redirect::*;
+use crate::Redirect::*;
 
 macro_rules! t {
     ($e:expr) => (match $e {