Attempting second-chance registration of MSBuild after RegisterDefaults failed

/home/runner/.nuget/packages/system.text.encodings.web/7.0.0/buildTransitive/netcoreapp2.0/System.Text.Encodings.Web.targets(4,5): warning : System.Text.Encodings.Web 7.0.0 doesn't support netcoreapp3.1 and has not been tested with it. Consider upgrading your TargetFramework to net6.0 or later. You may also set <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings> in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk. [/home/runner/work/MiscUtilities/MiscUtilities/test/Candoumbe.MiscUtilities.PerformanceTests/Candoumbe.MiscUtilities.PerformanceTests.csproj::TargetFramework=netcoreapp3.1]

/home/runner/.nuget/packages/system.text.json/7.0.3/buildTransitive/netcoreapp2.0/System.Text.Json.targets(4,5): warning : System.Text.Json 7.0.3 doesn't support netcoreapp3.1 and has not been tested with it. Consider upgrading your TargetFramework to net6.0 or later. You may also set <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings> in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk. [/home/runner/work/MiscUtilities/MiscUtilities/test/Candoumbe.MiscUtilities.PerformanceTests/Candoumbe.MiscUtilities.PerformanceTests.csproj::TargetFramework=netcoreapp3.1]

/home/runner/.nuget/packages/microsoft.extensions.primitives/7.0.0/buildTransitive/netcoreapp2.0/Microsoft.Extensions.Primitives.targets(4,5): warning : Microsoft.Extensions.Primitives 7.0.0 doesn't support netcoreapp3.1 and has not been tested with it. Consider upgrading your TargetFramework to net6.0 or later. You may also set <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings> in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk. [/home/runner/work/MiscUtilities/MiscUtilities/test/Candoumbe.MiscUtilities.PerformanceTests/Candoumbe.MiscUtilities.PerformanceTests.csproj::TargetFramework=netcoreapp3.1]

/home/runner/.nuget/packages/system.text.encodings.web/7.0.0/buildTransitive/netcoreapp2.0/System.Text.Encodings.Web.targets(4,5): warning : System.Text.Encodings.Web 7.0.0 doesn't support netcoreapp3.1 and has not been tested with it. Consider upgrading your TargetFramework to net6.0 or later. You may also set <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings> in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk. [/home/runner/work/MiscUtilities/MiscUtilities/test/Candoumbe.MiscUtilities.PerformanceTests/Candoumbe.MiscUtilities.PerformanceTests.csproj::TargetFramework=netcoreapp3.1]

/home/runner/.nuget/packages/system.text.json/7.0.3/buildTransitive/netcoreapp2.0/System.Text.Json.targets(4,5): warning : System.Text.Json 7.0.3 doesn't support netcoreapp3.1 and has not been tested with it. Consider upgrading your TargetFramework to net6.0 or later. You may also set <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings> in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk. [/home/runner/work/MiscUtilities/MiscUtilities/test/Candoumbe.MiscUtilities.PerformanceTests/Candoumbe.MiscUtilities.PerformanceTests.csproj::TargetFramework=netcoreapp3.1]