Update test error text for Rust 1.63

Author: shepmaster

tests/spec/features/automatic_primary_action_spec.rb

@@ -28,7 +28,7 @@
     click_on("Build")
 
     within(:output, :stderr) do
-      expect(page).to have_content 'function is never used: `main`'
+      expect(page).to have_content 'function `main` is never used'
     end
   end
 
@@ -75,7 +75,7 @@
     click_on("Build")
 
     within(:output, :stderr) do
-      expect(page).to have_content 'function is never used: `main`'
+      expect(page).to have_content 'function `main` is never used'
     end
   end
 
@@ -134,7 +134,7 @@
     click_on("Build")
 
     within(:output, :stderr) do
-      expect(page).to have_content 'function is never used: `arbitrary_code`'
+      expect(page).to have_content 'function `arbitrary_code` is never used'
     end
   end
 

tests/spec/features/compilation_targets_spec.rb

@@ -30,7 +30,7 @@
     scenario "choosing to build the code" do
       in_build_menu { click_on(build_button: "Build") }
       within(:output, :stderr) do
-        expect(page).to have_content 'function is never used: `main`'
+        expect(page).to have_content 'function `main` is never used'
       end
     end