can't remove what isn't there

.github/workflows/ci.yml

@@ -49,10 +49,10 @@ jobs:
           - os: ["self-hosted", "macOS", "ARM64"]
             name: ²
           - os: ["self-hosted", "linux", "ARM64"]
-            name: '*nix·ARM64'
+            name: "*nix·ARM64"
           - os: { group: "linux-x86-64" }
             container: debian:buster-slim
-            name: '*nix64'
+            name: "*nix64"
     runs-on: ${{ matrix.platform.os }}
     container: ${{ matrix.platform.container }}
     env:
@@ -85,6 +85,7 @@ jobs:
         run: |
           test -d builds
           rm -rf builds
+        if: steps.build.outputs.pkgspec
 
       - uses: pkgxdev/brewkit/test@v1
         with: