Install r2modman via url

recipes/common/helix.yml

@@ -2,6 +2,11 @@ stages:
   - name: helix
     from: rust
     modules:
+      - type: containerfile
+        snippets:
+          - ENV CLICOLOR_FORCE=1
+          - ENV FORCE_COLOR=1
+          - ENV RUST_LOG_STYLE=always
       - type: script
         no-cache: true
         scripts: