Adding cargo shear (fail check)

.woodpecker.yml

@@ -82,6 +82,15 @@ steps:
     when:
       - event: pull_request
 
+  cargo_shear:
+    image: *rust_nightly_image
+    commands:
+      - *install_binstall
+      - cargo binstall -y cargo-shear
+      - cargo shear
+    when:
+      - event: pull_request
+
   ignored_files:
     image: alpine:3
     commands: