Processing `/home/lilydev/vc/gub/target/linux-x86/gubfiles/build/lilypond-hwn/input/regression/out-test/lily-de9bffcf71.ly'
Parsing...
Renaming input to: `rest-pitched-beam.ly'
Interpreting music... 
rest-pitched-beam.ly:10:23: warning: barcheck failed at: 5/8
  a\rest a8[ a\rest b] 
                       |
Preprocessing graphical objects...
Calculating line breaks... 
programming error: Grob `System' has no interface for property `labels'
continuing, cross fingers
Drawing systems... 
Writing header field `texidoc' to `lily-de9bffcf71.texidoc'...
Writing lily-de9bffcf71-1.signature
Layout output to `lily-de9bffcf71-1.eps'...
Layout output to `lily-de9bffcf71.eps'...
Writing lily-de9bffcf71-systems.texi...
Writing lily-de9bffcf71-systems.tex...
Writing timing to lily-de9bffcf71.profile...