Auto merge of #232 - servo:spring, r=nox

Spring cleaning

Yes, October is in autumn. This is overdue since the spring of a couple years ago.

Author: bors-servo

Cargo.toml

@@ -6,6 +6,7 @@ description = "A string interning library for Rust, developed as part of the Ser
 license = "MIT / Apache-2.0"
 repository = "https://github.com/servo/string-cache"
 documentation = "https://docs.rs/string_cache/"
+edition = "2018"
 
 # Do not `exclude` ./string-cache-codegen because we want to include
 # ./string-cache-codegen/shared.rs, and `include` is a pain to use

examples/simple.rs

@@ -1,4 +1,4 @@
-extern crate string_cache;
+
 
 use string_cache::DefaultAtom;
 

integration-tests/Cargo.toml

@@ -4,6 +4,7 @@ version = "0.0.1"
 authors = [ "The Servo Project Developers" ]
 build = "build.rs"
 publish = false
+edition = "2018"
 
 [lib]
 doctest = false

integration-tests/build.rs

@@ -1,4 +1,4 @@
-extern crate string_cache_codegen;
+use string_cache_codegen;
 
 use std::env;
 use std::path::Path;

integration-tests/src/lib.rs

@@ -12,15 +12,11 @@
 #![allow(non_upper_case_globals)]
 #![cfg_attr(feature = "unstable", feature(test))]
 
-extern crate string_cache;
-
-#[cfg(feature = "unstable")]
-extern crate rand;
 #[cfg(feature = "unstable")]
 extern crate test;
 
 use std::thread;
-use string_cache::atom::StaticAtomSet;
+use string_cache::StaticAtomSet;
 
 include!(concat!(env!("OUT_DIR"), "/test_atom.rs"));
 pub type Atom = TestAtom;