Add linting

.github/workflows/cli-build.yml

@@ -1,4 +1,4 @@
-name: CLI Build
+name: CLI Build + Lint
 
 on:
   push:
@@ -23,13 +23,20 @@ jobs:
         uses: actions/cache@v2
         with:
           path: ../target/**
-          key: ${{ runner.os }}-build-cache
+          key: ${{ runner.os }}-theseus-cli-${{ hashFiles('Cargo.lock') }}
       - name: Install toolchain
         uses: actions-rs/toolchain@v1
         with:
           toolchain: stable
+          override: true
+          components: rustfmt, clippy
       - uses: actions-rs/cargo@v1
         name: Build program
         with:
           command: build
-          args: --bin theseus_cli
+          args: --bin theseus_cli
+      - name: Run Lint
+        uses: actions-rs/clippy-check@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          args: --bin theseus_cli