Replace Travis with GitHub Actions (#6)

* Update badges

.github/workflows/ci.yml

@@ -0,0 +1,82 @@
+name: CI
+on:
+  push:
+  pull_request:
+  schedule:
+    - cron: '0 0 * * 0'
+jobs:
+  checks:
+    name: Check
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - stable
+          - beta
+          - 1.37.0
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v3
+      - name: Install toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: ${{ matrix.rust }}
+          override: true
+      - name: Cargo check
+        uses: actions-rs/cargo@v1
+        with:
+          command: check
+          args: --all
+  lints:
+    name: Lints
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v3
+      - name: Install toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          components: clippy, rustfmt
+          override: true
+      - name: Cargo fmt
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check
+      - name: Cargo doc
+        uses: actions-rs/cargo@v1
+        with:
+          command: doc
+          args: --workspace --no-deps
+      - name: Cargo clippy
+        uses: actions-rs/clippy-check@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          args: --all --tests -- -D warnings
+  tests:
+    name: Test
+    runs-on: ubuntu-latest
+    needs: [checks, lints]
+    strategy:
+      matrix:
+        rust:
+          - stable
+          - beta
+          - 1.37.0
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v3
+      - name: Install toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: ${{ matrix.rust }}
+          override: true
+      - name: Cargo test
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --all

Cargo.toml

@@ -10,9 +10,11 @@ keywords = ["chain", "error", "iter", "iterator", "sources"]
 categories = ["rust-patterns"]
 license = "MIT"
 
+# NOTE: This field was first added in Rust 1.56.0
+rust-version = "1.37"
+
 [badges]
-travis-ci = { repository = "parasyte/error-iter" }
 maintenance = { status = "experimental" }
 
 [dev-dependencies]
-thiserror = "1.0"
+thiserror = "1"

README.md

@@ -1,7 +1,10 @@
 # `error-iter`
 
-[![Documentation](https://docs.rs/error-iter/badge.svg)](https://docs.rs/error-iter)
-[![Build Status](https://travis-ci.org/parasyte/error-iter.svg?branch=master)](https://travis-ci.org/parasyte/error-iter)
+[![Crates.io](https://img.shields.io/crates/v/error-iter)](https://crates.io/crates/error-iter "Crates.io version")
+[![Documentation](https://img.shields.io/docsrs/error-iter)](https://docs.rs/error-iter "Documentation")
+[![GitHub actions](https://img.shields.io/github/workflow/status/parasyte/error-iter/CI)](https://github.com/parasyte/error-iter/actions "CI")
+[![GitHub activity](https://img.shields.io/github/last-commit/parasyte/error-iter)](https://github.com/parasyte/error-iter/commits "Commit activity")
+[![GitHub Sponsors](https://img.shields.io/github/sponsors/parasyte)](https://github.com/sponsors/parasyte "Sponsors")
 [![unsafe forbidden](https://img.shields.io/badge/unsafe-forbidden-success.svg)](https://github.com/rust-secure-code/safety-dance/)
 
 Use [`Error::chain`](https://doc.rust-lang.org/nightly/std/error/trait.Error.html#method.chain) on stable Rust.