.github/workflows,.travis.yml: migrate lint and a couple tests to Github Actions

.github/workflows/test-linux.yml

@@ -0,0 +1,66 @@
+name: Lint and Tests
+env:
+  # Set to empty.
+  ANDROID_HOME:
+
+# Controls when the action will run.
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  # Run linter check. Only test code linters on latest version of Go.
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up Go 1.17
+        id: go
+        uses: actions/setup-go@v2
+        with:
+          go-version: ^1.17
+
+      - uses: actions/checkout@v2
+        with:
+          submodules: false
+
+      - run: make lint
+
+  # Run core-geth -specific tests, proving regression-safety and config interoperability.
+  test-cg:
+    name: Tests-CoreGeth
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up Go 1.17
+        id: go
+        uses: actions/setup-go@v2
+        with:
+          go-version: ^1.17
+
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+
+      - run: make test-coregeth
+
+  # Run build and tests against latest-1 Go version.
+  test:
+    name: Tests
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up Go 1.16
+        id: go
+        uses: actions/setup-go@v2
+        with:
+          go-version: ^1.16
+
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+
+      - run: |
+          make all
+          make test

.travis.yml

@@ -4,39 +4,6 @@ sudo: false
 jobs:
   include:
 
-  # Run linter check. Only test code linters on latest version of Go.
-  - stage: lint
-    os: linux
-    dist: xenial
-    go: 1.16.x
-    env:
-      - lint
-    git:
-      submodules: false
-    script:
-      - make lint
-
-  # Run core-geth -specific tests, proving regression-safety and config interoperability.
-  - stage: build
-    name: "Go1.16.x: make test-coregeth"
-    os: linux
-    dist: xenial
-    go: 1.16.x
-    script:
-    - travis_wait 60 make test-coregeth
-
-  # Run build and tests against latest-1 Go version.
-  - stage: build
-    name: "Go1.15.x: make test"
-    os: linux
-    dist: xenial
-    go: 1.15.x
-    env:
-      - GO111MODULE=on
-    script:
-      - make all
-      - travis_wait 60 make test
-
   # Run build and tests on ARM64 on Pull Requests.
   # These tests are divided in half because their aggregate typical runtime
   # exceeds Travis' time limit (~60m) and were consistently causing timeouts.