Merge pull request rust-lang#10 from lzutao/ci/add-mac-winnt-builds

ci: Add Mac and Windows builds

.travis.yml

@@ -1,3 +1,32 @@
+dist: xenial
 language: rust
 rust:
-  - stable
+  - stable
+
+git:
+  depth: 1
+  quiet: true
+
+matrix:
+  fast_finish: true
+  include:
+    - os: linux
+      env: TARGET=x86_64-unknown-linux-gnu
+
+    - os: osx
+      osx_image: xcode9.2
+      env: MACOSX_DEPLOYMENT_TARGET=10.7 TARGET=x86_64-apple-darwin
+
+    - os: windows
+      env: TARGET=x86_64-pc-windows-msvc EXE_EXT=.exe
+      services: nil
+
+    - name: rustfmt
+      install:
+        - rustup component add rustfmt
+      script:
+        - cargo fmt --all -- --check
+
+script:
+  - cargo build --verbose
+  - cargo test --verbose

src/lib.rs

@@ -26,7 +26,7 @@
 //! [rust-lang/rust#43321]: https://github.com/rust-lang/rust/issues/43321
 
 #![deny(rust_2018_idioms)]
-#![allow(deprecated)] // uses std::env::home_dir when necessary
+#![allow(deprecated)] // uses env::home_dir when necessary
 
 use std::env;
 use std::io;
@@ -68,7 +68,6 @@ pub fn home_dir() -> Option<PathBuf> {
 
 #[cfg(windows)]
 fn home_dir_() -> Option<PathBuf> {
-    use scopeguard;
     use std::ptr;
     use winapi::shared::winerror::ERROR_INSUFFICIENT_BUFFER;
     use winapi::um::errhandlingapi::GetLastError;
@@ -77,7 +76,7 @@ fn home_dir_() -> Option<PathBuf> {
     use winapi::um::userenv::GetUserProfileDirectoryW;
     use winapi::um::winnt::TOKEN_READ;
 
-    std::env::var_os("USERPROFILE")
+    env::var_os("USERPROFILE")
         .map(PathBuf::from)
         .or_else(|| unsafe {
             let me = GetCurrentProcess();
@@ -162,7 +161,7 @@ where
 
 #[cfg(any(unix, target_os = "redox"))]
 fn home_dir_() -> Option<PathBuf> {
-    std::env::home_dir()
+    env::home_dir()
 }
 
 /// Returns the storage directory used by Cargo, often knowns as
@@ -217,7 +216,7 @@ pub fn cargo_home_with_cwd(cwd: &Path) -> io::Result<PathBuf> {
     let user_home = home_dir.map(|p| p.join(".cargo"));
 
     // Compatibility with old cargo that used the std definition of home_dir
-    let compat_home_dir = std::env::home_dir();
+    let compat_home_dir = env::home_dir();
     let compat_user_home = compat_home_dir.map(|p| p.join(".cargo"));
 
     if let Some(p) = env_cargo_home {