diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
new file mode 100644
index 0000000..f6a80ed
--- /dev/null
+++ b/.github/workflows/CI.yml
@@ -0,0 +1,75 @@
+name: CI
+on: [push]
+jobs:
+  check:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        rust: [beta]
+
+    env:
+      RUSTFLAGS: "-D warnings"
+
+    steps:
+    - uses: hecrj/setup-rust-action@master
+      with:
+        rust-version: ${{ matrix.rust }}
+    - uses: actions/checkout@master
+    - name: Install rustfmt
+      run: rustup component add rustfmt
+    - name: Check fmt
+      run: cargo fmt -- --check
+    - name: Check all
+      run: cargo check --all
+    - name: Check with no default features
+      run: cargo check -p tonic --no-default-features
+    - name: Check with transport no tls
+      run: cargo check -p tonic
+    - name: Check with transport w/ openssl
+      run: cargo check -p tonic --features openssl
+    - name: Check with transport w/ rustls
+      run: cargo check -p tonic --features rustls
+
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        rust: [beta]
+
+    env:
+      RUSTFLAGS: "-D warnings"
+    
+    steps:
+    - uses: hecrj/setup-rust-action@master
+      with:
+        rust-version: ${{ matrix.rust }}
+    - name: Install rustfmt
+      run: rustup component add rustfmt
+    - uses: actions/checkout@master
+    - name: Run tests
+      run: cargo test --all --all-features
+
+  interop:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macOS-latest]
+        rust: [beta]
+
+    env:
+      RUSTFLAGS: "-D warnings"
+    
+    steps:
+    - uses: hecrj/setup-rust-action@master
+      with:
+        rust-version: ${{ matrix.rust }}
+    - uses: actions/checkout@master
+    - name: Install rustfmt
+      run: rustup component add rustfmt
+    - name: Run interop tests
+      run: ./tonic-interop/test.sh
+    - name: Run interop tests with tls
+      run: ./tonic-interop/test.sh --use_tls
+
diff --git a/.github/workflows/interop.yml b/.github/workflows/interop.yml
deleted file mode 100644
index e302d13..0000000
--- a/.github/workflows/interop.yml
+++ /dev/null
@@ -1,21 +0,0 @@
-name: interop
-on: [push]
-jobs:
-  test:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macOS-latest]
-        rust: [beta]
-
-    steps:
-    - uses: hecrj/setup-rust-action@master
-      with:
-        rust-version: ${{ matrix.rust }}
-    - uses: actions/checkout@master
-    - name: Install rustfmt
-      run: rustup component add rustfmt
-    - name: Run interop tests
-      run: ./tonic-interop/test.sh
-    - name: Run interop tests with tls
-      run: ./tonic-interop/test.sh --use_tls
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
deleted file mode 100644
index 50ac25d..0000000
--- a/.github/workflows/test.yml
+++ /dev/null
@@ -1,31 +0,0 @@
-name: test
-on: [push]
-jobs:
-  test:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-latest]
-        rust: [beta]
-
-    steps:
-    - uses: hecrj/setup-rust-action@master
-      with:
-        rust-version: ${{ matrix.rust }}
-    - uses: actions/checkout@master
-    - name: Install rustfmt
-      run: rustup component add rustfmt
-    - name: Check fmt
-      run: cargo fmt -- --check
-    - name: Check all
-      run: cargo check --all
-    - name: Check with no default features
-      run: cargo check -p tonic --no-default-features
-    - name: Check with transport no tls
-      run: cargo check -p tonic
-    - name: Check with transport w/ openssl
-      run: cargo check -p tonic --features openssl
-    - name: Check with transport w/ rustls
-      run: cargo check -p tonic --features rustls
-    - name: Run tests
-      run: cargo test --all --all-features
diff --git a/tonic-examples/src/routeguide/server.rs b/tonic-examples/src/routeguide/server.rs
index b7a0c30..4c56562 100644
--- a/tonic-examples/src/routeguide/server.rs
+++ b/tonic-examples/src/routeguide/server.rs
@@ -124,7 +124,7 @@ impl server::RouteGuide for RouteGuide {
         println!("RouteChat");
 
         let stream = request.into_inner();
-        let mut state = self.state.clone();
+        let state = self.state.clone();
 
         let output = async_stream::try_stream! {
             futures::pin_mut!(stream);