Add error output messages.
Use auto_ptr instead of QScopedPointer.

Not all Qt installations on the dashboard have QScopedPointer.
Try to make the uic command line appear in the dashboard output.
Merge topic 'INTERFACE_AUTOUIC_OPTIONS' into next

0e88d54 Try to make the uic command line appear in the dashboard output.
dd732da Use auto_ptr instead of QScopedPointer.
ea44cd8 Add error output messages.