Maybe that works?

Author: grendello

src/Xamarin.Android.Build.Tasks/Tests/Xamarin.Android.Build.Tests/BuildTest.cs

@@ -1419,7 +1419,7 @@ public void NUnitLiteNugetWorks ()
 				/* enableProguard */             null,
 				/* androidEnableProguard */      "true",
 				/* expectedBuildResult */        false,
-				/* expectedWarning */            TargetRuntimeHelper.UseCoreCLR && TargetRuntimeHelper.CoreClrIsExperimental ? "1 Warning(s)" : "0 Warning(s)",
+				/* expectedWarning */            "0 Warning(s)",
 			},
 			new object [] {
 				/* linkTool */                   null,