Update to the latest stable rustfmt, 0.4.2-stable (febbb36 2018-04-12).

cranelift/src/cat.rs

@@ -3,9 +3,9 @@
 //! Read a sequence of Cretonne IR files and print them again to stdout. This has the effect of
 //! normalizing formatting and removing comments.
 
-use CommandResult;
 use cretonne_reader::parse_functions;
 use utils::read_to_string;
+use CommandResult;
 
 pub fn run(files: &[String]) -> CommandResult {
     for (i, f) in files.into_iter().enumerate() {

cranelift/src/compile.rs

@@ -1,10 +1,10 @@
 //! CLI tool to read Cretonne IR files and compile them into native code.
 
 use capstone::prelude::*;
-use cretonne_codegen::Context;
 use cretonne_codegen::isa::TargetIsa;
 use cretonne_codegen::print_errors::pretty_error;
 use cretonne_codegen::settings::FlagsOrIsa;
+use cretonne_codegen::Context;
 use cretonne_codegen::{binemit, ir};
 use cretonne_reader::parse_test;
 use std::path::Path;

cranelift/src/cton-util.rs

@@ -1,8 +1,12 @@
 #![deny(trivial_numeric_casts)]
 #![warn(unused_import_braces, unstable_features, unused_extern_crates)]
-#![cfg_attr(feature = "cargo-clippy",
-            warn(float_arithmetic, mut_mut, nonminimal_bool, option_map_unwrap_or,
-                 option_map_unwrap_or_else, unicode_not_nfc, use_self))]
+#![cfg_attr(
+    feature = "cargo-clippy",
+    warn(
+        float_arithmetic, mut_mut, nonminimal_bool, option_map_unwrap_or, option_map_unwrap_or_else,
+        unicode_not_nfc, use_self
+    )
+)]
 
 #[macro_use]
 extern crate cfg_if;

cranelift/src/print_cfg.rs

@@ -3,10 +3,10 @@
 //! Read a series of Cretonne IR files and print their control flow graphs
 //! in graphviz format.
 
-use CommandResult;
 use cretonne_codegen::cfg_printer::CFGPrinter;
 use cretonne_reader::parse_functions;
 use utils::read_to_string;
+use CommandResult;
 
 pub fn run(files: &[String]) -> CommandResult {
     for (i, f) in files.into_iter().enumerate() {

cranelift/src/rsfilecheck.rs

@@ -2,10 +2,10 @@
 //!
 //! This file is named to avoid a name collision with the filecheck crate.
 
-use CommandResult;
 use filecheck::{Checker, CheckerBuilder, NO_VARIABLES};
 use std::io::{self, Read};
 use utils::read_to_string;
+use CommandResult;
 
 pub fn run(files: &[String], verbose: bool) -> CommandResult {
     if files.is_empty() {