From dc2350d9dad427f11f416bf6f38696c09054d47f Mon Sep 17 00:00:00 2001
From: Jim Blandy <jimb@red-bean.com>
Date: Sun, 13 Jun 2021 17:03:55 -0700
Subject: [PATCH] queue: Update for 2nd edition.

---
 queue/Cargo.toml | 1 +
 queue/src/lib.rs | 5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/queue/Cargo.toml b/queue/Cargo.toml
index d7765e2..23c252e 100644
--- a/queue/Cargo.toml
+++ b/queue/Cargo.toml
@@ -2,5 +2,6 @@
 name = "queue"
 version = "0.1.0"
 authors = ["You <you@example.com>"]
+edition = "2018"
 
 [dependencies]
diff --git a/queue/src/lib.rs b/queue/src/lib.rs
index 13a5f47..c2968ff 100644
--- a/queue/src/lib.rs
+++ b/queue/src/lib.rs
@@ -1,4 +1,7 @@
-/// A last-in, first-out queue of characters.
+#![warn(rust_2018_idioms)]
+#![allow(elided_lifetimes_in_paths)]
+
+/// A first-in, first-out queue of characters.
 pub struct Queue {
     older: Vec<char>,   // older elements, eldest last.
     younger: Vec<char>  // younger elements, youngest last.