workflows: limit permissions to reading repo contents

bgilbert · bgilbert · commit cf0c8c6bf588 · 2021-07-28T16:57:21.000-04:00
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
@@ -6,6 +6,9 @@ on:
   pull_request:
     branches: [ main ]
 
+permissions:
+  contents: read
+
 env:
   CARGO_TERM_COLOR: always
 
