diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
new file mode 100644
index 000000000..3961f9fdf
--- /dev/null
+++ b/.github/workflows/build-and-test.yml
@@ -0,0 +1,122 @@
+name: Github Autobuild
+on: [ push, pull_request ]
+env:
+  CCACHE_COMPRESS: exists means true
+  CCACHE_SLOPPINESS: include_file_ctime,include_file_mtime,time_macros
+jobs:
+  test-release:
+    name: Build and run tests in Release mode
+    runs-on: ubuntu-latest
+    steps:
+    - name: Install dependencies
+      run: |
+        sudo apt-get install -y \
+                     ccache \
+                     parallel \
+                     libboost-thread-dev \
+                     libboost-iostreams-dev \
+                     libboost-date-time-dev \
+                     libboost-system-dev \
+                     libboost-filesystem-dev \
+                     libboost-program-options-dev \
+                     libboost-chrono-dev \
+                     libboost-test-dev \
+                     libboost-context-dev \
+                     libboost-regex-dev \
+                     libboost-coroutine-dev
+    - uses: actions/checkout@v1
+      with:
+        submodules: recursive
+    - name: Configure
+      run: |
+        mkdir -p _build
+        pushd _build
+        cmake -D CMAKE_BUILD_TYPE=Release \
+              -D CMAKE_CXX_OUTPUT_EXTENSION_REPLACE=ON \
+              -D CMAKE_C_COMPILER=gcc \
+              -D CMAKE_C_COMPILER_LAUNCHER=ccache \
+              -D CMAKE_CXX_COMPILER=g++ \
+              -D CMAKE_CXX_COMPILER_LAUNCHER=ccache \
+              ..
+        popd
+    - name: Load Cache
+      uses: actions/cache@v1
+      with:
+        path: ccache
+        key: ccache-release-${{ github.ref }}-${{ github.sha }}
+        restore-keys: |
+          ccache-release-${{ github.ref }}-
+          ccache-release-
+          ccache-
+    - name: Build
+      run: |
+        export CCACHE_DIR="$GITHUB_WORKSPACE/ccache"
+        mkdir -p "$CCACHE_DIR"
+        make -j 2 -C _build
+    - name: Test
+      run: |
+        parallel echo Running {}\; sh -c "_build/tests/{}" <<_EOT_
+        all_tests
+        bloom_test -- README.md
+        ecc_test README.md
+        hmac_test
+        task_cancel_test
+        _EOT_
+  test-debug:
+    name: Build and run tests in Debug mode
+    runs-on: ubuntu-latest
+    steps:
+    - name: Install dependencies
+      run: |
+        sudo apt-get install -y \
+                     ccache \
+                     parallel \
+                     libboost-thread-dev \
+                     libboost-iostreams-dev \
+                     libboost-date-time-dev \
+                     libboost-system-dev \
+                     libboost-filesystem-dev \
+                     libboost-program-options-dev \
+                     libboost-chrono-dev \
+                     libboost-test-dev \
+                     libboost-context-dev \
+                     libboost-regex-dev \
+                     libboost-coroutine-dev
+    - uses: actions/checkout@v1
+      with:
+        submodules: recursive
+    - name: Configure
+      run: |
+        mkdir -p _build
+        pushd _build
+        cmake -D CMAKE_BUILD_TYPE=Debug \
+              -D CMAKE_CXX_OUTPUT_EXTENSION_REPLACE=ON \
+              -D CMAKE_C_COMPILER=gcc \
+              -D CMAKE_C_COMPILER_LAUNCHER=ccache \
+              -D CMAKE_CXX_COMPILER=g++ \
+              -D CMAKE_CXX_COMPILER_LAUNCHER=ccache \
+              ..
+        popd
+    - name: Load Cache
+      uses: actions/cache@v1
+      with:
+        path: ccache
+        key: ccache-debug-${{ github.ref }}-${{ github.sha }}
+        restore-keys: |
+          ccache-debug-${{ github.ref }}-
+          ccache-debug-
+          ccache-
+    - name: Build
+      run: |
+        export CCACHE_DIR="$GITHUB_WORKSPACE/ccache"
+        mkdir -p "$CCACHE_DIR"
+        make -j 2 -C _build
+    - name: Test
+      run: |
+        parallel echo Running {}\; sh -c "_build/tests/{}" <<_EOT_
+        all_tests
+        bloom_test -- README.md
+        ecc_test README.md
+        hmac_test
+        task_cancel_test
+        _EOT_
diff --git a/README.md b/README.md
index e528ef828..87d504a2f 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@ fc
 ==
 
 [![](https://travis-ci.org/bitshares/bitshares-fc.svg?branch=master)](https://travis-ci.org/bitshares/bitshares-fc) 
+[![](https://github.com/bitshares/bitshares-fc/workflows/Github%20Autobuild/badge.svg?branch=master)](https://github.com/bitshares/bitshares-fc/actions?query=branch%3Amaster)
 
 **NOTE:** This fork reverts upstream commit a421e280488385cab26a42153f7ce3c8d5b6281f to avoid changing the BitShares API.
 
diff --git a/tests/crypto/dh_test.cpp b/tests/crypto/dh_test.cpp
index bc38cc430..a6d9d25ca 100644
--- a/tests/crypto/dh_test.cpp
+++ b/tests/crypto/dh_test.cpp
@@ -50,7 +50,7 @@ BOOST_AUTO_TEST_CASE(dh_test)
     alice.p.clear(); alice.p.push_back(100); alice.p.push_back(2);
     BOOST_CHECK( !alice.validate() );
     alice.p = bob.p;
-    alice.g = 9;
+    alice.g = 1;
     BOOST_CHECK( !alice.validate() );
 }
 
diff --git a/tests/stacktrace_test.cpp b/tests/stacktrace_test.cpp
index 452a63e08..feb57905f 100644
--- a/tests/stacktrace_test.cpp
+++ b/tests/stacktrace_test.cpp
@@ -64,17 +64,18 @@ class _svdt_visitor
 BOOST_AUTO_TEST_CASE(static_variant_depth_test)
 {
    int64_t i = 1;
-   fc::static_variant<uint8_t,uint16_t,uint32_t,uint64_t,int8_t,int16_t,int32_t,int64_t> test(i);
+   fc::static_variant<std::string,std::vector<uint8_t>,std::vector<uint16_t>,std::vector<uint32_t>,
+                      uint8_t,uint16_t,uint32_t,uint64_t,int8_t,int16_t,int32_t,int64_t> test(i);
 
    std::string stacktrace = test.visit( _svdt_visitor() );
-   //std::cerr << stacktrace << "\n";
+   std::cerr << stacktrace << "\n";
    std::vector<std::string> lines;
    boost::split( lines, stacktrace, boost::is_any_of("\n") );
    int count = 0;
    for( const auto& line : lines )
       if( line.find("_svdt_visitor") != std::string::npos ) count++;
-   BOOST_CHECK_LT( 2, count ); // test.visit(), static_variant::visit, function object, visitor
-   BOOST_CHECK_GT( 8, count ); // some is implementation-dependent
+   BOOST_CHECK_LT( 1, count );  // The actual count depends on compiler and optimization settings.
+   BOOST_CHECK_GT( 10, count ); // It *should* be less than the number of static variant components.
 }
 #endif