How to configure the tasks.json problemMatcher property?

[stijnherreman]

I'm trying out the Microsoft.Build.Sql SDK for some existing databases, using the SQL Database Projects extension in VS Code. The build output gives me over 1000 warnings, so I tried configuring tasks.json with a problem matcher to get a better overview of the problems.

{
	"version": "2.0.0",
	"tasks": [
		{
			"label": "build example",
			"type": "process",
			"command": "dotnet",
			"args": [
				"build",
				"${workspaceFolder}/example/example.sqlproj",
				"/property:GenerateFullPaths=true",
				"/consoleloggerparameters:NoSummary"
			],
			"problemMatcher": "$msCompile",
			"group": {
				"kind": "build",
				"isDefault": true
			}
		}
	]
}

Unfortunately $msCompile doesn't pick up these warnings. Is there a problem matcher I can refer to, or a regular expression I can copy-paste?