Processing `/home/lilydev/vc/gub/target/linux-x86/gubfiles/build/lilypond-hwn/input/regression/out-test/lily-29a10267bd.ly'
Parsing...
Renaming input to: `tuplet-slope.ly'
Interpreting music... 
Preprocessing graphical objects...
Calculating line breaks... 
programming error: Grob `System' has no interface for property `labels'
continuing, cross fingers
programming error: Grob `System' has no interface for property `labels'
continuing, cross fingers
Drawing systems... 
Writing header field `texidoc' to `lily-29a10267bd.texidoc'...
Writing lily-29a10267bd-1.signature
Writing lily-29a10267bd-2.signature
Layout output to `lily-29a10267bd-1.eps'...
Layout output to `lily-29a10267bd-2.eps'...
Layout output to `lily-29a10267bd.eps'...
Writing lily-29a10267bd-systems.texi...
Writing lily-29a10267bd-systems.tex...
Writing timing to lily-29a10267bd.profile...