Migrate from Travis CI to GitHub Actions

.github/workflows/ci.yml

@@ -0,0 +1,43 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-20.04
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Install `stable-x86_64-unknown-linux-gnu`
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable-x86_64-unknown-linux-gnu
+          default: true
+          profile: minimal
+          components: clippy
+
+      - name: cargo-build
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --verbose --all
+
+      - name: cargo-test
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --verbose --all
+
+      - name: cargo-clippy
+        uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: -- -D clippy::all -W clippy::pedantic
+

README.md

@@ -1,6 +1,6 @@
 # cargo-license
 
-[![Build Status](https://secure.travis-ci.org/onur/cargo-license.svg?branch=master)](https://travis-ci.org/onur/cargo-license)
+[![CI](https://github.com/onur/cargo-license/workflows/CI/badge.svg)](https://github.com/onur/cargo-license/actions?workflow=CI)
 [![License](https://img.shields.io/badge/license-MIT-blue.svg)](https://raw.githubusercontent.com/onur/cargo-license/master/LICENSE)
 ![Minimum Supported Rust Version](https://img.shields.io/badge/rustc-1.34-red)