switch CI to github actions

Author: sfackler

.circleci/config.yml

@@ -0,0 +1,83 @@
+name: CI
+
+on:
+  pull_request:
+    branches:
+      - master
+  push:
+    branches:
+      - master
+
+env:
+  RUSTFLAGS: -Dwarnings
+  RUST_BACKTRACE: 1
+
+jobs:
+  rustfmt:
+    name: rustfmt
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: sfackler/actions/rustup@master
+      - uses: sfackler/actions/rustfmt@master
+  
+  clippy:
+    name: clippy
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: sfackler/actions/rustup@master
+      - run: echo "::set-output name=version::$(rustc --version)"
+        id: rust-version
+      - uses: actions/cache@v1
+        with:
+          path: ~/.cargo/registry/index
+          key: index-${{ runner.os }}-${{ github.run_number }}
+          restore-keys: |
+            index-${{ runner.os }}-
+      - run: cargo generate-lockfile
+      - uses: actions/cache@v1
+        with:
+          path: ~/.cargo/registry/cache
+          key: registry-${{ runner.os }}-${{ steps.rust-version.outputs.version }}-${{ hashFiles('Cargo.lock') }}
+      - run: cargo fetch
+      - uses: actions/cache@v1
+        with:
+          path: target
+          key: clippy-target-${{ runner.os }}-${{ steps.rust-version.outputs.version }}-${{ hashFiles('Cargo.lock') }}y
+      - run: cargo clippy --all --all-targets
+
+  test:
+    name: test
+    runs-on: ubuntu-latest
+    services:
+      postgres:
+        image: sfackler/rust-postgres-test:6
+        ports:
+          - 5433:5433
+    steps:
+      - uses: actions/checkout@v2
+      - uses: sfackler/actions/rustup@master
+        with:
+          version: 1.45.0
+      - run: echo "::set-output name=version::$(rustc --version)"
+        id: rust-version
+      - uses: actions/cache@v1
+        with:
+          path: ~/.cargo/registry/index
+          key: index-${{ runner.os }}-${{ github.run_number }}
+          restore-keys: |
+            index-${{ runner.os }}-
+      - run: cargo generate-lockfile
+      - uses: actions/cache@v1
+        with:
+          path: ~/.cargo/registry/cache
+          key: registry-${{ runner.os }}-${{ steps.rust-version.outputs.version }}-${{ hashFiles('Cargo.lock') }}
+      - run: cargo fetch
+      - uses: actions/cache@v1
+        with:
+          path: target
+          key: test-target-${{ runner.os }}-${{ steps.rust-version.outputs.version }}-${{ hashFiles('Cargo.lock') }}y
+      - run: cargo test --all
+      - run: cargo test --manifest-path tokio-postgres/Cargo.toml --no-default-features
+      - run: cargo test --manifest-path tokio-postgres/Cargo.toml --all-features