I have a build at xt0rted/slash-command-action#71 that's failing and the typescript problem matcher is picking up the error, but it's not associating the annotation with the correct line as seen here. This looks to be due to line value also containing the column (107,11).

This can be seen using https://regex101.com/ with the values:

^(?:\s+\d+\>)?([^\s].*)\((\d+|\d+,\d+|\d+,\d+,\d+,\d+)\)\s*:\s+(error|warning|info)\s+(\w{1,2}\d+)\s*:\s*(.*)$

src/commandHandler.ts(107,11): error TS2322: Type 'Response<ReposGetCollaboratorPermissionLevelResponse>' is not assignable to type 'Response<CollaboratorPermissionLevel>'.