diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 5ff8f53..0819a07 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -6,6 +6,10 @@ jobs:
   build_and_test:
     name: yup-oauth2
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        features: ["hyper-rustls", "hyper-tls", "hyper-rustls,hyper-tls", ""]
     steps:
       - uses: actions/checkout@v2
       - uses: actions-rs/toolchain@v1
@@ -16,18 +20,7 @@ jobs:
       - uses: actions-rs/cargo@v1
         with:
           command: test
-      - uses: actions-rs/cargo@v1
-        with:
-          command: test
-          args: --all-features
-      - uses: actions-rs/cargo@v1
-        with:
-          command: test
-          args: --no-default-features --tests --examples
-      - uses: actions-rs/cargo@v1
-        with:
-          command: build
-          args: --examples
+          args: --no-default-features --features=${{ matrix.features }}
 
   doc:
     name: yup-oauth2
diff --git a/Cargo.toml b/Cargo.toml
index 82535c2..4f3c828 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,6 +14,10 @@ edition = "2018"
 name = "custom_flow"
 required-features = ["hyper-rustls"]
 
+[[example]]
+name = "custom_storage"
+required-features = ["hyper-rustls"]
+
 [[test]]
 name = "tests"
 required-features = ["hyper-rustls"]
diff --git a/src/authenticator.rs b/src/authenticator.rs
index c7cb3a2..d3d72e4 100644
--- a/src/authenticator.rs
+++ b/src/authenticator.rs
@@ -141,6 +141,7 @@ pub struct AuthenticatorBuilder<C, F> {
 
 /// Create an authenticator that uses the installed flow.
 /// ```
+/// # #[cfg(any(feature = "hyper-rustls", feature = "hyper-tls"))]
 /// # async fn foo() {
 /// # use yup_oauth2::InstalledFlowReturnMethod;
 /// # let custom_flow_delegate = yup_oauth2::authenticator_delegate::DefaultInstalledFlowDelegate;
@@ -181,6 +182,7 @@ impl InstalledFlowAuthenticator {
 
 /// Create an authenticator that uses the device flow.
 /// ```
+/// # #[cfg(any(feature = "hyper-rustls", feature = "hyper-tls"))]
 /// # async fn foo() {
 /// # let app_secret = yup_oauth2::read_application_secret("/tmp/foo").await.unwrap();
 ///     let authenticator = yup_oauth2::DeviceFlowAuthenticator::builder(app_secret)
@@ -214,6 +216,7 @@ impl DeviceFlowAuthenticator {
 
 /// Create an authenticator that uses a service account.
 /// ```
+/// # #[cfg(any(feature = "hyper-rustls", feature = "hyper-tls"))]
 /// # async fn foo() {
 /// # let service_account_key = yup_oauth2::read_service_account_key("/tmp/foo").await.unwrap();
 ///     let authenticator = yup_oauth2::ServiceAccountAuthenticator::builder(service_account_key)
@@ -253,6 +256,7 @@ impl ServiceAccountAuthenticator {
 
 /// ## Methods available when building any Authenticator.
 /// ```
+/// # #[cfg(any(feature = "hyper-rustls", feature = "hyper-tls"))]
 /// # async fn foo() {
 /// # let custom_hyper_client = hyper::Client::new();
 /// # let app_secret = yup_oauth2::read_application_secret("/tmp/foo").await.unwrap();
@@ -330,6 +334,7 @@ impl<C, F> AuthenticatorBuilder<C, F> {
 
 /// ## Methods available when building a device flow Authenticator.
 /// ```
+/// # #[cfg(any(feature = "hyper-rustls", feature = "hyper-tls"))]
 /// # async fn foo() {
 /// # let custom_flow_delegate = yup_oauth2::authenticator_delegate::DefaultDeviceFlowDelegate;
 /// # let app_secret = yup_oauth2::read_application_secret("/tmp/foo").await.unwrap();
@@ -392,6 +397,7 @@ impl<C> AuthenticatorBuilder<C, DeviceFlow> {
 
 /// ## Methods available when building an installed flow Authenticator.
 /// ```
+/// # #[cfg(any(feature = "hyper-rustls", feature = "hyper-tls"))]
 /// # async fn foo() {
 /// # use yup_oauth2::InstalledFlowReturnMethod;
 /// # let custom_flow_delegate = yup_oauth2::authenticator_delegate::DefaultInstalledFlowDelegate;
@@ -434,6 +440,7 @@ impl<C> AuthenticatorBuilder<C, InstalledFlow> {
 
 /// ## Methods available when building a service account authenticator.
 /// ```
+/// # #[cfg(any(feature = "hyper-rustls", feature = "hyper-tls"))]
 /// # async fn foo() {
 /// # let service_account_key = yup_oauth2::read_service_account_key("/tmp/foo").await.unwrap();
 ///     let authenticator = yup_oauth2::ServiceAccountAuthenticator::builder(
@@ -597,10 +604,10 @@ enum StorageType {
 
 #[cfg(test)]
 mod tests {
-    use super::*;
     #[test]
     #[cfg(any(feature = "hyper-rustls", feature = "hyper-tls"))]
     fn ensure_send_sync() {
+        use super::*;
         fn is_send_sync<T: Send + Sync>() {}
         is_send_sync::<Authenticator<<DefaultHyperClient as HyperClientBuilder>::Connector>>()
     }
diff --git a/src/lib.rs b/src/lib.rs
index cf9a7ee..78d7491 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -39,6 +39,7 @@
 //! ```test_harness,no_run
 //! use yup_oauth2::{InstalledFlowAuthenticator, InstalledFlowReturnMethod};
 //!
+//! # #[cfg(any(feature = "hyper-rustls", feature = "hyper-tls"))]
 //! #[tokio::main]
 //! async fn main() {
 //!     // Read application secret from a file. Sometimes it's easier to compile it directly into