Clicking on warning to open a file (from script)

I'm running a swift script that is emitting warning lines like this

/Users/work/Documents/QuGame/QuGame/BoardTurnView.swift:1:1: warning: [dead-code] Debug-only symbol static SimpleTurn.== infix(SimpleTurn, SimpleTurn) -> Swift.Bool
/Users/work/Documents/QuGame/QuGame/DataNotifications+PreviewData.swift:1:1: warning: [dead-code] Debug-only symbol DataNotifications.(addConversation)(to: QUBoardModel, local: GKPlayer, opponent: GKPlayer, texts: [Swift.String]) -> ()
/Users/work/Documents/QuGame/QuGame/DataNotifications+PreviewData.swift:1:1: warning: [dead-code] Debug-only symbol DataNotifications.loadBlankBoard() -> ()

These are correctly formatted for Xcode to detect the filename, line and columns.

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[dead-code] Debug-only symbol static SimpleTurn.== infix(SimpleTurn, SimpleTurn) -> Swift.Bool

[dead-code] Debug-only symbol DataNotifications.(addConversation)(to: QUBoardModel, local: GKPlayer, opponent: GKPlayer, texts: [Swift.String]) -> ()

[dead-code] Debug-only symbol DataNotifications.loadBlankBoard() -> ()

However, when the script is run as part of the post-actions, Xcode doesn't support clicking on the warning to take you to the file. I can map from the .o to the .swift by hunting the project directory (not-sandboxed)

If I run the script as part of the Run Script Phase, I cannot back track to find the fully qualified location of the file as I'm sandboxed. All I have is BoardTurnView.o, DataNotiications+PreviewData.o etc.

Anyone got any suggestions?

Clicking on warning to open a file (from script)
 
 
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