Play with strategies and such.

.github/workflows/builder.yml

@@ -1,15 +1,20 @@
 name: Matrix
 on:
-  - pull_request
+  pull_request
-  - push
+  push:
+    branches:
+      - main
+      - 'releases/**'
+
 jobs:
-  main:
   strategy:
     matrix:
       rust:
         - stable
         - beta
         - nightly
+
+  main:
     name: ${{matrix.rust}}
     runs-on: x86_64-linux
     steps:
@@ -21,6 +26,6 @@ jobs:
       - run: rustup --version
       - run: rustc -vV
 
-      - run: cargo clippy -- --deny clippy::pedantic
+      - run: cargo clippy
       - run: cargo fmt --all -- --check
       - run: cargo test