Add solution suggested by @fhammerl

src/Runner.Common/JobServerQueue.cs

@@ -818,7 +818,6 @@ namespace GitHub.Runner.Common
 
             return mergedRecords;
         }
-
         private async Task UploadFile(UploadFileInfo file)
         {
             bool uploadSucceed = false;

src/Sdk/DTObjectTemplating/ObjectTemplating/TemplateContext.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Linq;
@@ -163,7 +163,6 @@ namespace GitHub.DistributedTask.ObjectTemplating
                 message = $"{prefix} {message}";
             }
 
-            Errors.Add(message);
             TraceWriter.Error(message);
         }
 

src/Test/Test.csproj

@@ -15,10 +15,6 @@
     </ItemGroup>
 
     <ItemGroup>
-        <PackageReference Include="coverlet.collector" Version="3.2.0">
-          <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
-          <PrivateAssets>all</PrivateAssets>
-        </PackageReference>
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.2.0" />
         <PackageReference Include="xunit" Version="2.4.1" />
         <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1" />

src/dev.sh

@@ -194,10 +194,6 @@ function layout ()
 
 function runtest ()
 {
-    if [[ ! -d "$LAYOUT_DIR" ]]; then
-        echo "$LAYOUT_DIR doesn't exist. Generating it now ..."
-        layout
-    fi
     heading "Testing ..."
 
     if [[ ("$CURRENT_PLATFORM" == "linux") || ("$CURRENT_PLATFORM" == "darwin") ]]; then
@@ -207,13 +203,6 @@ function runtest ()
     dotnet msbuild -t:test -p:PackageRuntime="${RUNTIME_ID}" -p:BUILDCONFIG="${BUILD_CONFIG}" -p:RunnerVersion="${RUNNER_VERSION}" ./dir.proj || failed "failed tests"
 }
 
-function coverage ()
-{
-    heading "Coverage ..."
-    cd Test && dotnet test --collect:"XPlat Code Coverage;Format=json"
-    # reportgenerator -reports:"/workspaces/runner/src/Test/TestResults/ecf2bd75-83e9-489a-9339-d61293abf98b/coverage.cobertura.xml" -targetdir:"coveragereport" -reporttypes:Html
-}
-
 function format()
 {
     heading "Formatting..."
@@ -380,7 +369,6 @@ case $DEV_CMD in
     "p") package;;
     "format") format;;
     "f") format;;
-    "c") coverage;;
     *) echo "Invalid cmd.  Use build(b), test(t), layout(l), package(p), or format(f)";;
 esac