Add CircleCI support

.circleci/config.yml

@@ -0,0 +1,31 @@
+version: 2
+
+jobs:
+  build:
+    docker:
+      - image: rust:1.33.0-slim
+
+    steps:
+      - checkout
+      - run:
+          name: Install Dependencies
+          command: |
+            apt-get update
+            apt-get install -y clang cmake libsnappy-dev
+            rustup component add rustfmt
+            rustup component add clippy
+      - run:
+          name: Format
+          command: cargo fmt --all -- --check
+      - run:
+          name: Check
+          command: cargo check --all
+      - run:
+          name: Clippy
+          command: cargo clippy --all
+      - run:
+          name: Build
+          command: cargo build --all
+      - run:
+          name: Test
+          command: cargo test --all