Moved from Travis to GitHub Actions

.github/workflows/ci.yml

@@ -0,0 +1,24 @@
+name: CI
+
+on:
+  push:
+    branches: [ "master" ]
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+    - name: Install Rust
+      uses: dtolnay/rust-toolchain@master
+      with:
+        toolchain: stable
+        components: clippy
+    - name: Run Clippy
+      run: cargo clippy
+    - name: Build
+      run: cargo build --verbose

README.md

@@ -1,3 +1,3 @@
-# rustboy [![Build Status](https://app.travis-ci.com/reima/rustboy.svg?branch=master)](https://app.travis-ci.com/github/reima/rustboy)
+# rustboy ![Build Status](https://github.com/reima/rustboy/actions/workflows/ci.yml/badge.svg)
 
 `rustboy` is an emulator for the Nintendo GameBoy written in the Rust programming language.