The output looks like: [ 8s] ms=0x55c928947810 created [ 8s] ftype called with ms=0x55c928947810 for /home/abuild/rpmbuild/BUILDROOT/adinatha-fonts-1.0-0.x86_64/usr/share/doc/packages/adinatha-fonts/Adinatha Tamil Brahmi Manual.pdf with result=PDF document, version 1.5 [ 8s] magic_load=0 [ 8s] ftype2 called for /home/abuild/rpmbuild/BUILDROOT/adinatha-fonts-1.0-0.x86_64/usr/share/doc/packages/adinatha-fonts/Adinatha Tamil Brahmi Manual.pdf with result=PDF document, version 1.5 [ 8s] ftype called with ms=0x55c928947810 for /home/abuild/rpmbuild/BUILDROOT/adinatha-fonts-1.0-0.x86_64/usr/share/doc/packages/adinatha-fonts/Adinatha-Tamil-Brahmi.otf with result=data [ 8s] magic_load=0 [ 8s] ftype2 called for /home/abuild/rpmbuild/BUILDROOT/adinatha-fonts-1.0-0.x86_64/usr/share/doc/packages/adinatha-fonts/Adinatha-Tamil-Brahmi.otf with result=TrueType Font data, 19 tables, 1st "Feat" [ 8s] closing ms=0x55c928947810 'result=data' is the problematic output, while jobs>2 does: [ 9s] ms=0x562b74b3ef90 created [ 9s] ms=0x7f8364000b70 created [ 9s] ms=0x7f835c000b70 created [ 9s] ms=0x7f8354000b70 created [ 9s] ftype called with ms=0x7f8354000b70 for /home/abuild/rpmbuild/BUILDROOT/adinatha-fonts-1.0-0.x86_64/usr/share/doc/packages/adinatha-fonts/Adinatha-Tamil-Brahmi.otf with result=TrueType Font data, 19 tables, 1st "Feat" [ 9s] magic_load=0 [ 9s] ftype called with ms=0x7f835c000b70 for /home/abuild/rpmbuild/BUILDROOT/adinatha-fonts-1.0-0.x86_64/usr/share/doc/packages/adinatha-fonts/Adinatha Tamil Brahmi Manual.pdf with result=PDF document, version 1.5 [ 9s] magic_load=0 [ 9s] ftype2 called for /home/abuild/rpmbuild/BUILDROOT/adinatha-fonts-1.0-0.x86_64/usr/share/doc/packages/adinatha-fonts/Adinatha-Tamil-Brahmi.otf with result=TrueType Font data, 19 tables, 1st "Feat" [ 9s] ftype2 called for /home/abuild/rpmbuild/BUILDROOT/adinatha-fonts-1.0-0.x86_64/usr/share/doc/packages/adinatha-fonts/Adinatha Tamil Brahmi Manual.pdf with result=PDF document, version 1.5 [ 9s] closing ms=0x7f835c000b70 [ 9s] closing ms=0x562b74b3ef90 [ 9s] closing ms=0x7f8354000b70 [ 9s] closing ms=0x7f8364000b70