Enable libc extra_traits feature

Also bump Rust requirement to 1.25 which is a requirement of that feature

.cirrus.yml

@@ -11,7 +11,7 @@ task:
   setup_script:
     - pkg install -y curl
     - curl https://sh.rustup.rs -sSf --output rustup.sh
-    - sh rustup.sh -y --default-toolchain 1.24.1
+    - sh rustup.sh -y --default-toolchain 1.25.0
     - $HOME/.cargo/bin/rustup target add i686-unknown-freebsd
   amd64_test_script:
     - . $HOME/.cargo/env

.travis.yml

@@ -22,63 +22,63 @@ matrix:
     # Additionally they're moved to the front of the line to get them in the Travis
     # OS X build queue first.
     - env: TARGET="aarch64-apple-ios;armv7-apple-ios;armv7s-apple-ios;i386-apple-ios;x86_64-apple-ios" DISABLE_TESTS=1
-      rust: 1.24.1
+      rust: 1.25.0
       os: osx
 
     # Mac builds
     # These are also moved to be first because they wait in a long queue with Travis
     - env: TARGET=i686-apple-darwin
-      rust: 1.24.1
+      rust: 1.25.0
       os: osx
     - env: TARGET=x86_64-apple-darwin
-      rust: 1.24.1
+      rust: 1.25.0
       os: osx
 
     # Android
     - env: TARGET=aarch64-linux-android DISABLE_TESTS=1
-      rust: 1.24.1
+      rust: 1.25.0
     - env: TARGET=arm-linux-androideabi DISABLE_TESTS=1
-      rust: 1.24.1
+      rust: 1.25.0
     - env: TARGET=armv7-linux-androideabi DISABLE_TESTS=1
-      rust: 1.24.1
+      rust: 1.25.0
     - env: TARGET=i686-linux-android DISABLE_TESTS=1
-      rust: 1.24.1
+      rust: 1.25.0
     - env: TARGET=x86_64-linux-android DISABLE_TESTS=1
-      rust: 1.24.1
+      rust: 1.25.0
 
     # Linux
     - env: TARGET=aarch64-unknown-linux-gnu
-      rust: 1.24.1
+      rust: 1.25.0
     - env: TARGET=arm-unknown-linux-gnueabi
-      rust: 1.24.1
+      rust: 1.25.0
     - env: TARGET=arm-unknown-linux-musleabi DISABLE_TESTS=1
-      rust: 1.24.1
+      rust: 1.25.0
     - env: TARGET=armv7-unknown-linux-gnueabihf
-      rust: 1.24.1
+      rust: 1.25.0
     - env: TARGET=i686-unknown-linux-gnu
-      rust: 1.24.1
+      rust: 1.25.0
     - env: TARGET=i686-unknown-linux-musl
-      rust: 1.24.1
+      rust: 1.25.0
     - env: TARGET=mips-unknown-linux-gnu
-      rust: 1.24.1
+      rust: 1.25.0
     - env: TARGET=mips64-unknown-linux-gnuabi64
-      rust: 1.24.1
+      rust: 1.25.0
     - env: TARGET=mips64el-unknown-linux-gnuabi64
-      rust: 1.24.1
+      rust: 1.25.0
     - env: TARGET=mipsel-unknown-linux-gnu
-      rust: 1.24.1
+      rust: 1.25.0
     - env: TARGET=powerpc-unknown-linux-gnu DISABLE_TESTS=1
-      rust: 1.24.1
+      rust: 1.25.0
     - env: TARGET=powerpc64-unknown-linux-gnu
-      rust: 1.24.1
+      rust: 1.25.0
     - env: TARGET=powerpc64le-unknown-linux-gnu
-      rust: 1.24.1
+      rust: 1.25.0
     - env: TARGET=s390x-unknown-linux-gnu DISABLE_TESTS=1
-      rust: 1.24.1
+      rust: 1.25.0
     - env: TARGET=x86_64-unknown-linux-gnu
-      rust: 1.24.1
+      rust: 1.25.0
     - env: TARGET=x86_64-unknown-linux-musl
-      rust: 1.24.1
+      rust: 1.25.0
 
     # *BSD
     # FreeBSD i686 and x86_64 use BuildBot instead of Travis
@@ -87,7 +87,7 @@ matrix:
     # - env: TARGET=i686-unknown-freebsd DISABLE_TESTS=1
     # - env: TARGET=x86_64-unknown-freebsd DISABLE_TESTS=1
     - env: TARGET=x86_64-unknown-netbsd DISABLE_TESTS=1
-      rust: 1.24.1
+      rust: 1.25.0
 
     # Make sure stable is always working too
     - env: TARGET=x86_64-unknown-linux-gnu

CHANGELOG.md

@@ -19,6 +19,8 @@ This project adheres to [Semantic Versioning](http://semver.org/).
   ```
 
 ### Changed
+- Minimum supported Rust version is now 1.25.0 
+  ([#1035](https://github.com/nix-rust/nix/pull/1035))
 ### Fixed
 ### Removed
 

Cargo.toml

@@ -16,7 +16,7 @@ exclude     = [
 ]
 
 [dependencies]
-libc = "0.2.57"
+libc = { git = "https://github.com/rust-lang/libc", features = [ "extra_traits" ] }
 bitflags = "1.0"
 cfg-if = "0.1.0"
 void = "1.0.2"

README.md

@@ -44,8 +44,7 @@ limitations. Support for platforms is split into three tiers:
              *do not* block the inclusion of new code. Testing may be run, but
              failures in tests don't block the inclusion of new code.
 
-The following targets are all supported by nix on Rust 1.24.1 or newer (unless
-otherwise noted):
+The following targets are supported by `nix`:
 
 Tier 1:
   * aarch64-unknown-linux-gnu
@@ -84,6 +83,8 @@ Tier 2:
 
 ## Usage
 
+`nix` requires Rust 1.25.0 or newer.
+
 To use `nix`, first add this to your `Cargo.toml`:
 
 ```toml