diff --git a/Cargo.lock b/Cargo.lock
index d6e9b2880..dda00a2d0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -11,11 +11,11 @@ dependencies = [
 
 [[package]]
 name = "backtrace"
-version = "0.3.37"
+version = "0.3.38"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "backtrace-sys 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -31,7 +31,7 @@ dependencies = [
 
 [[package]]
 name = "bitflags"
-version = "1.1.0"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -41,7 +41,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "cfg-if"
-version = "0.1.9"
+version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -50,6 +50,7 @@ version = "0.1.16"
 dependencies = [
  "atty 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "error-chain 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "home 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
  "nix 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -64,10 +65,19 @@ name = "error-chain"
 version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.38 (registry+https://github.com/rust-lang/crates.io-index)",
  "version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "home"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "scopeguard 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -83,9 +93,9 @@ name = "nix"
 version = "0.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "cc 1.0.45 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
  "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -103,6 +113,11 @@ dependencies = [
  "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "scopeguard"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "semver"
 version = "0.9.0"
@@ -160,17 +175,19 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [metadata]
 "checksum atty 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)" = "1803c647a3ec87095e7ae7acfca019e98de5ec9a7d01343f611cf3152ed71a90"
-"checksum backtrace 0.3.37 (registry+https://github.com/rust-lang/crates.io-index)" = "5180c5a20655b14a819b652fd2378fa5f1697b6c9ddad3e695c2f9cedf6df4e2"
+"checksum backtrace 0.3.38 (registry+https://github.com/rust-lang/crates.io-index)" = "690a62be8920ccf773ee00ef0968649b0e724cda8bd5b12286302b4ae955fdf5"
 "checksum backtrace-sys 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)" = "82a830b4ef2d1124a711c71d263c5abdc710ef8e907bd508c88be475cebc422b"
-"checksum bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3d155346769a6855b86399e9bc3814ab343cd3d62c7e985113d46a0ec3c281fd"
+"checksum bitflags 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8a606a02debe2813760609f57a64a2ffd27d9fdf5b2f133eaca0b248dd92cdd2"
 "checksum cc 1.0.45 (registry+https://github.com/rust-lang/crates.io-index)" = "4fc9a35e1f4290eb9e5fc54ba6cf40671ed2a2514c3eeb2b2a908dda2ea5a1be"
-"checksum cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "b486ce3ccf7ffd79fdeb678eac06a9e6c09fc88d33836340becb8fffe87c5e33"
+"checksum cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 "checksum error-chain 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3ab49e9dcb602294bc42f9a7dfc9bc6e936fca4418ea300dbfb84fe16de0b7d9"
+"checksum home 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c07c315e106bd6f83f026a20ddaeef2706782e490db1dcdd37caad38a0e895b3"
 "checksum lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 "checksum libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)" = "34fcd2c08d2f832f376f4173a231990fa5aef4e99fb569867318a227ef4c06ba"
 "checksum nix 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3b2e0b4f3320ed72aaedb9a5ac838690a8047c7b275da22711fddff4f8a14229"
 "checksum rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)" = "4c691c0e608126e00913e33f0ccf3727d5fc84573623b8d65b2df340b5201783"
 "checksum rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
+"checksum scopeguard 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b42e15e59b18a828bbf5c58ea01debb36b9b096346de35d941dcb89009f24a0d"
 "checksum semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
 "checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 "checksum serde 1.0.101 (registry+https://github.com/rust-lang/crates.io-index)" = "9796c9b7ba2ffe7a9ce53c2287dfc48080f4b2b362fcc245a259b3a7201119dd"
diff --git a/Cargo.toml b/Cargo.toml
index 9fd22ed39..8e4c6ccb1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,10 +8,12 @@ license = "MIT OR Apache-2.0"
 name = "cross"
 repository = "https://github.com/rust-embedded/cross"
 version = "0.1.16"
+edition = "2018"
 
 [dependencies]
 atty = "0.2"
 error-chain = "0.12"
+home = "0.5"
 lazy_static = "1.0"
 libc = "0.2.18"
 rustc_version = "0.2"
diff --git a/src/cargo.rs b/src/cargo.rs
index 4a04d731e..01ce9fdf3 100644
--- a/src/cargo.rs
+++ b/src/cargo.rs
@@ -2,8 +2,8 @@ use std::path::{Path, PathBuf};
 use std::process::{Command, ExitStatus};
 use std::{env, fs};
 
-use errors::*;
-use extensions::CommandExt;
+use crate::errors::*;
+use crate::extensions::CommandExt;
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum Subcommand {
diff --git a/src/cli.rs b/src/cli.rs
index 6894aaba8..2401566f7 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -1,8 +1,8 @@
 use std::env;
 
-use Target;
-use cargo::Subcommand;
-use rustc::TargetList;
+use crate::Target;
+use crate::cargo::Subcommand;
+use crate::rustc::TargetList;
 
 pub struct Args {
     pub all: Vec<String>,
diff --git a/src/docker.rs b/src/docker.rs
index 4ac273351..e4f33bba9 100644
--- a/src/docker.rs
+++ b/src/docker.rs
@@ -3,13 +3,15 @@ use std::process::{Command, ExitStatus};
 use std::{env, fs};
 
 use atty::Stream;
+use error_chain::bail;
+use lazy_static::lazy_static;
 use semver::{Version, VersionReq};
 
-use {Target, Toml};
-use cargo::Root;
-use errors::*;
-use extensions::CommandExt;
-use id;
+use crate::{Target, Toml};
+use crate::cargo::Root;
+use crate::errors::*;
+use crate::extensions::CommandExt;
+use crate::id;
 
 const DOCKER_IMAGES: &[&str] = &include!(concat!(env!("OUT_DIR"), "/docker-images.rs"));
 
@@ -76,10 +78,8 @@ pub fn run(target: &Target,
            verbose: bool)
            -> Result<ExitStatus> {
     let root = root.path();
-    let home_dir = env::home_dir().ok_or_else(|| "couldn't get home directory. Is $HOME not set?")?;
-    let cargo_dir = env::var_os("CARGO_HOME")
-        .map(PathBuf::from)
-        .unwrap_or_else(|| home_dir.join(".cargo"));
+    let home_dir = home::home_dir().ok_or_else(|| "could not find home directory")?;
+    let cargo_dir = home::cargo_home()?;
     let xargo_dir = env::var_os("XARGO_HOME")
         .map(PathBuf::from)
         .unwrap_or_else(|| home_dir.join(".xargo"));
diff --git a/src/errors.rs b/src/errors.rs
index 73613511b..7b902fd73 100644
--- a/src/errors.rs
+++ b/src/errors.rs
@@ -1,3 +1,9 @@
 #![allow(unused_doc_comments)]
 
-error_chain!();
+use error_chain::error_chain;
+
+error_chain! {
+  foreign_links {
+    Io(std::io::Error);
+  }
+}
diff --git a/src/extensions.rs b/src/extensions.rs
index 27ced011a..c2800ba0e 100644
--- a/src/extensions.rs
+++ b/src/extensions.rs
@@ -1,6 +1,6 @@
 use std::process::{Command, ExitStatus};
 
-use errors::*;
+use crate::errors::*;
 
 pub trait CommandExt {
     fn run(&mut self, verbose: bool) -> Result<()>;
diff --git a/src/file.rs b/src/file.rs
index 40427768c..636ceed3e 100644
--- a/src/file.rs
+++ b/src/file.rs
@@ -2,7 +2,7 @@ use std::fs::File;
 use std::io::Read;
 use std::path::Path;
 
-use errors::*;
+use crate::errors::*;
 
 pub fn read<P>(path: P) -> Result<String>
     where P: AsRef<Path>
diff --git a/src/interpreter.rs b/src/interpreter.rs
index f7d828742..39adb468f 100644
--- a/src/interpreter.rs
+++ b/src/interpreter.rs
@@ -1,8 +1,8 @@
 use std::path::Path;
 
-use errors::*;
-use file;
-use Target;
+use crate::errors::*;
+use crate::file;
+use crate::Target;
 
 /// Checks if the interpreters have been registered in the host system
 pub fn is_registered(target: &Target) -> Result<bool> {
diff --git a/src/main.rs b/src/main.rs
index 7f62ccac6..0bcac5365 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,20 +1,4 @@
-#![deny(missing_debug_implementations)]
-
-extern crate atty;
-#[macro_use]
-extern crate error_chain;
-#[macro_use]
-extern crate lazy_static;
-extern crate libc;
-extern crate rustc_version;
-extern crate semver;
-extern crate toml;
-
-#[cfg(not(target_os = "windows"))]
-extern crate nix;
-
-#[cfg(target_os = "windows")]
-extern crate winapi;
+#![deny(missing_debug_implementations, rust_2018_idioms)]
 
 mod cargo;
 mod cli;
@@ -31,14 +15,15 @@ use std::io::Write;
 use std::process::ExitStatus;
 use std::{env, io, process};
 
+use error_chain::bail;
 use toml::{Value, value::Table};
 
-use cargo::{Root, Subcommand};
-use errors::*;
-use rustc::{TargetList, VersionMetaExt};
+use self::cargo::{Root, Subcommand};
+use self::errors::*;
+use self::rustc::{TargetList, VersionMetaExt};
 
 #[allow(non_camel_case_types)]
-#[derive(Debug, Clone, Copy, PartialEq)]
+#[derive(Debug, Clone, PartialEq)]
 pub enum Host {
     Other,
 
diff --git a/src/rustc.rs b/src/rustc.rs
index d36e74e2c..cdaddf44b 100644
--- a/src/rustc.rs
+++ b/src/rustc.rs
@@ -3,9 +3,9 @@ use std::process::Command;
 
 use rustc_version::{Version, VersionMeta};
 
-use {Host, Target};
-use errors::*;
-use extensions::CommandExt;
+use crate::{Host, Target};
+use crate::errors::*;
+use crate::extensions::CommandExt;
 
 pub struct TargetList {
     triples: Vec<String>,
diff --git a/src/rustup.rs b/src/rustup.rs
index 6fbf646eb..9aa982a6c 100644
--- a/src/rustup.rs
+++ b/src/rustup.rs
@@ -1,8 +1,8 @@
 use std::process::Command;
 
-use Target;
-use errors::*;
-use extensions::CommandExt;
+use crate::Target;
+use crate::errors::*;
+use crate::extensions::CommandExt;
 
 #[derive(Debug)]
 pub struct AvailableTargets {