We introduced picking one framework at random when specifying -one which canary does but it sometimes selects netstandard2.0 which for tests is not a configured framework updated

Author: Mpdreamz

build/scripts/Projects.fs

@@ -8,7 +8,8 @@ module Projects =
         | NetStandard2_0
         | Net461
         | NetCoreApp2_1
-        static member All = [NetStandard2_0; Net461] 
+        static member All = [NetStandard2_0; Net461]
+        static member AllTests = [NetCoreApp2_1; Net461] 
         member this.Identifier = 
             match this with
             | NetStandard2_0 -> { MSBuild = "netstandard2.0"; Nuget = "netstandard2.0"; DefineConstants = ""; }

build/scripts/Testing.fs

@@ -43,7 +43,7 @@ module Tests =
             | (_, true) -> ["--framework"; "netcoreapp2.1"] |> List.append p
             | (Commandline.MultiTarget.One, _) ->
                 let random = new Random()
-                let fw = DotNetFramework.All |> List.sortBy (fun _ -> random.Next()) |> List.head
+                let fw = DotNetFramework.AllTests |> List.sortBy (fun _ -> random.Next()) |> List.head
                 ["--framework"; fw.Identifier.MSBuild] |> List.append p
             | _  -> p
         let commandWithCodeCoverage =