diff --git a/.github/workflows/mariadb.yml b/.github/workflows/mariadb.yml
new file mode 100644
index 00000000..bd76cdee
--- /dev/null
+++ b/.github/workflows/mariadb.yml
@@ -0,0 +1,55 @@
+name: MariaDB
+
+on: [push]
+
+jobs:
+  test:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        mariadb: [10.1.43, 10.4.11]
+
+    services:
+      mariadb:
+        image: mariadb:${{ matrix.mariadb }}
+        env:
+          MYSQL_ROOT_PASSWORD: password
+          MYSQL_DATABASE: sqlx
+        ports:
+        # will assign a random free host port
+        - 3309/tcp
+        # needed because the container does not provide a healthcheck
+        options: --health-cmd "mysqladmin ping -h localhost" --health-interval 10s --health-timeout 5s --health-retries 5
+
+    steps:
+    - uses: actions/checkout@v1
+
+    - name: Cache cargo registry
+      uses: actions/cache@v1
+      with:
+        path: ~/.cargo/registry
+        key: ${{ runner.os }}-mysql-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
+    
+    - name: Cache cargo index
+      uses: actions/cache@v1
+      with:
+        path: ~/.cargo/git
+        key: ${{ runner.os }}-mysql-cargo-index-${{ hashFiles('**/Cargo.lock') }}
+    
+    - name: Cache cargo build
+      uses: actions/cache@v1
+      with:
+        path: target
+        key: ${{ runner.os }}-mysql-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
+
+    - name: Setup rust
+      uses: actions-rs/toolchain@v1
+      with:
+        toolchain: stable
+        override: true
+
+    - run: cargo test -p sqlx --no-default-features --features 'mysql macros chrono'
+      env:
+        DATABASE_URL: mariadb://root:password@localhost:${{ job.services.mariadb.ports[3309] }}/sqlx
diff --git a/.github/workflows/postgres.yml b/.github/workflows/postgres.yml
new file mode 100644
index 00000000..a8f9a0a6
--- /dev/null
+++ b/.github/workflows/postgres.yml
@@ -0,0 +1,56 @@
+name: Postgres
+
+on: [push]
+
+jobs:
+  test:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        postgres: [9.4.25, 10.11, 12.1]
+
+    services:
+      postgres:
+        image: postgres:${{ matrix.postgres }}
+        env:
+          POSTGRES_USER: postgres
+          POSTGRES_PASSWORD: postgres
+          POSTGRES_DB: postgres
+        ports:
+        # will assign a random free host port
+        - 5432/tcp
+        # needed because the postgres container does not provide a healthcheck
+        options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
+
+    steps:
+    - uses: actions/checkout@v1
+
+    - name: Setup rust
+      uses: actions-rs/toolchain@v1
+      with:
+        toolchain: stable
+        override: true
+
+    - name: Cache cargo registry
+      uses: actions/cache@v1
+      with:
+        path: ~/.cargo/registry
+        key: ${{ runner.os }}-postgres-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
+    
+    - name: Cache cargo index
+      uses: actions/cache@v1
+      with:
+        path: ~/.cargo/git
+        key: ${{ runner.os }}-postgres-cargo-index-${{ hashFiles('**/Cargo.lock') }}
+    
+    - name: Cache cargo build
+      uses: actions/cache@v1
+      with:
+        path: target
+        key: ${{ runner.os }}-postgres-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
+
+    - run: cargo test -p sqlx --no-default-features --features 'postgres macros uuid chrono'
+      env:
+        DATABASE_URL: postgres://postgres:postgres@localhost:${{ job.services.postgres.ports[5432] }}/postgres
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 8c9175b9..458072c9 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -10,11 +10,12 @@ jobs:
     steps:
     - uses: actions/checkout@v1
 
-    - name: Setup rust
-      uses: actions-rs/toolchain@v1
+    - name: Cache rust
+      id: cache_rust
+      uses: actions/cache@v1
       with:
-        toolchain: stable
-        override: true
+        path: ~/.rustup/toolchains
+        key: ${{ runner.os }}-rust-${{ hashFiles('**/Cargo.lock') }}
 
     - name: Cache cargo registry
       uses: actions/cache@v1
@@ -34,6 +35,13 @@ jobs:
         path: target
         key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
 
+    - name: Setup rust
+      uses: actions-rs/toolchain@v1
+      if: steps.cache_rust.outputs.cache-hit != 'true'
+      with:
+        toolchain: stable
+        override: true
+
     - run: cargo check --all-features
 
     - run: cargo test -p sqlx-core --all-features