Source: qtwebkit-opensource-src
Version: 5.212.0~alpha4-4
Severity: serious
Justification: FTBFS on amd64
Tags: bullseye sid ftbfs
Usertags: ftbfs-20200802 ftbfs-bullseye

Hi,

During a rebuild of all packages in sid, your package failed to build
on amd64.

Relevant part (hopefully):
> /usr/bin/c++  -DBUILDING_QT__=1 -DBUILDING_WITH_CMAKE=1 -DBUILDING_WebCore 
> -DHAVE_CONFIG_H=1 -DJS_NO_EXPORT -DQT_ASCII_CAST_WARNINGS -DQT_CORE_LIB 
> -DQT_DEPRECATED_WARNINGS -DQT_DISABLE_DEPRECATED_BEFORE=0x050000 -DQT_GUI_LIB 
> -DQT_NETWORK_LIB -DQT_NO_CAST_TO_ASCII -DQT_NO_DEBUG -DQT_NO_DYNAMIC_CAST 
> -DQT_NO_EXCEPTIONS -DQT_SENSORS_LIB -DQT_USE_QSTRINGBUILDER -ISource/WebCore 
> -I../Source/WebCore -I../Source/WebCore/Modules/airplay 
> -I../Source/WebCore/Modules/battery 
> -I../Source/WebCore/Modules/encryptedmedia -I../Source/WebCore/Modules/fetch 
> -I../Source/WebCore/Modules/geolocation -I../Source/WebCore/Modules/indexeddb 
> -I../Source/WebCore/Modules/indexeddb/client 
> -I../Source/WebCore/Modules/indexeddb/server 
> -I../Source/WebCore/Modules/indexeddb/shared 
> -I../Source/WebCore/Modules/indieui -I../Source/WebCore/Modules/mediacontrols 
> -I../Source/WebCore/Modules/mediasession 
> -I../Source/WebCore/Modules/mediasource 
> -I../Source/WebCore/Modules/mediastream 
> -I../Source/WebCore/Modules/navigatorcontentutils 
> -I../Source/WebCore/Modules/notifications -I../Source/WebCore/Modules/plugins 
> -I../Source/WebCore/Modules/proximity -I../Source/WebCore/Modules/quota 
> -I../Source/WebCore/Modules/speech -I../Source/WebCore/Modules/streams 
> -I../Source/WebCore/Modules/vibration -I../Source/WebCore/Modules/webaudio 
> -I../Source/WebCore/Modules/webdatabase 
> -I../Source/WebCore/Modules/websockets -I../Source/WebCore/accessibility 
> -I../Source/WebCore/bindings -I../Source/WebCore/bindings/generic 
> -I../Source/WebCore/bindings/js -I../Source/WebCore/bridge 
> -I../Source/WebCore/bridge/c -I../Source/WebCore/bridge/jsc 
> -I../Source/WebCore/contentextensions -I../Source/WebCore/crypto 
> -I../Source/WebCore/crypto/algorithms -I../Source/WebCore/crypto/keys 
> -I../Source/WebCore/crypto/parameters -I../Source/WebCore/css 
> -I../Source/WebCore/cssjit -I../Source/WebCore/dom 
> -I../Source/WebCore/dom/default -I../Source/WebCore/editing 
> -I../Source/WebCore/fileapi -I../Source/WebCore/history 
> -I../Source/WebCore/html -I../Source/WebCore/html/canvas 
> -I../Source/WebCore/html/forms -I../Source/WebCore/html/parser 
> -I../Source/WebCore/html/shadow -I../Source/WebCore/html/track 
> -I../Source/WebCore/inspector -I../Source/WebCore/loader 
> -I../Source/WebCore/loader/appcache -I../Source/WebCore/loader/archive 
> -I../Source/WebCore/loader/archive/mhtml -I../Source/WebCore/loader/cache 
> -I../Source/WebCore/loader/icon -I../Source/WebCore/mathml 
> -I../Source/WebCore/page -I../Source/WebCore/page/animation 
> -I../Source/WebCore/page/csp -I../Source/WebCore/page/scrolling 
> -I../Source/WebCore/platform -I../Source/WebCore/platform/animation 
> -I../Source/WebCore/platform/audio -I../Source/WebCore/platform/crypto 
> -I../Source/WebCore/platform/graphics 
> -I../Source/WebCore/platform/graphics/cpu/arm 
> -I../Source/WebCore/platform/graphics/cpu/arm/filters 
> -I../Source/WebCore/platform/graphics/displaylists 
> -I../Source/WebCore/platform/graphics/filters 
> -I../Source/WebCore/platform/graphics/harfbuzz 
> -I../Source/WebCore/platform/graphics/harfbuzz/ng 
> -I../Source/WebCore/platform/graphics/opentype 
> -I../Source/WebCore/platform/graphics/transforms 
> -I../Source/WebCore/platform/mediastream -I../Source/WebCore/platform/mock 
> -I../Source/WebCore/platform/mock/mediasource 
> -I../Source/WebCore/platform/network -I../Source/WebCore/platform/sql 
> -I../Source/WebCore/platform/text -I../Source/WebCore/platform/text/icu 
> -I../Source/WebCore/plugins -I../Source/WebCore/rendering 
> -I../Source/WebCore/rendering/line -I../Source/WebCore/rendering/mathml 
> -I../Source/WebCore/rendering/shapes -I../Source/WebCore/rendering/style 
> -I../Source/WebCore/rendering/svg -I../Source/WebCore/replay 
> -I../Source/WebCore/storage -I../Source/WebCore/style -I../Source/WebCore/svg 
> -I../Source/WebCore/svg/animation -I../Source/WebCore/svg/graphics 
> -I../Source/WebCore/svg/graphics/filters -I../Source/WebCore/svg/properties 
> -I../Source/WebCore/websockets -I../Source/WebCore/workers 
> -I../Source/WebCore/xml -I../Source/WebCore/xml/parser -IDerivedSources 
> -IDerivedSources/ForwardingHeaders -IDerivedSources/WebCore -I../Source -I. 
> -I../Source/WebCore/Modules/gamepad/deprecated 
> -I../Source/WebCore/platform/graphics/gpu 
> -I../Source/WebCore/platform/image-decoders 
> -I../Source/WebCore/platform/image-decoders/bmp 
> -I../Source/WebCore/platform/image-decoders/gif 
> -I../Source/WebCore/platform/image-decoders/ico 
> -I../Source/WebCore/platform/image-decoders/jpeg 
> -I../Source/WebCore/platform/image-decoders/png 
> -I../Source/WebCore/platform/image-decoders/webp 
> -I../Source/WebCore/platform/linux 
> -I../Source/WebCore/platform/graphics/texmap 
> -I../Source/WebCore/page/scrolling/coordinatedgraphics 
> -I../Source/WebCore/platform/graphics/texmap/coordinated 
> -IDerivedSources/JavaScriptCore -IDerivedSources/JavaScriptCore/inspector 
> -I../Source/JavaScriptCore -I../Source/JavaScriptCore/ForwardingHeaders 
> -I../Source/JavaScriptCore/API -I../Source/JavaScriptCore/assembler 
> -I../Source/JavaScriptCore/bytecode -I../Source/JavaScriptCore/bytecompiler 
> -I../Source/JavaScriptCore/dfg -I../Source/JavaScriptCore/disassembler 
> -I../Source/JavaScriptCore/heap -I../Source/JavaScriptCore/debugger 
> -I../Source/JavaScriptCore/interpreter -I../Source/JavaScriptCore/jit 
> -I../Source/JavaScriptCore/llint -I../Source/JavaScriptCore/parser 
> -I../Source/JavaScriptCore/profiler -I../Source/JavaScriptCore/runtime 
> -I../Source/JavaScriptCore/yarr -I../Source/ThirdParty/ANGLE 
> -I../Source/ThirdParty/ANGLE/include/KHR -I../Source/WebCore/Modules/gamepad 
> -I../Source/WebCore/bridge/qt -I../Source/WebCore/dom/qt 
> -I../Source/WebCore/editing/qt -I../Source/WebCore/history/qt 
> -I../Source/WebCore/page/qt -I../Source/WebCore/platform/qt 
> -I../Source/WebCore/platform/audio/qt 
> -I../Source/WebCore/platform/graphics/egl 
> -I../Source/WebCore/platform/graphics/glx 
> -I../Source/WebCore/platform/graphics/gpu/qt 
> -I../Source/WebCore/platform/graphics/opengl 
> -I../Source/WebCore/platform/graphics/surfaces 
> -I../Source/WebCore/platform/graphics/surfaces/qt 
> -I../Source/WebCore/platform/graphics/qt 
> -I../Source/WebCore/platform/graphics/win 
> -I../Source/WebCore/platform/network/qt -I../Source/WebCore/platform/text/qt 
> -I../Source/WebCore/platform/win -I../Source/WebCore/platform/graphics/x11 
> -I../Source/WTF -I../Source/WebCore/platform/mediastream/openwebrtc 
> -I../Source/WebCore/platform/graphics/gstreamer 
> -I../Source/WebCore/platform/audio/gstreamer -I../Source/WebCore/testing 
> -isystem /usr/include/libxml2 -isystem /usr/include/x86_64-linux-gnu/qt5 
> -isystem /usr/include/x86_64-linux-gnu/qt5/QtGui -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtCore -isystem 
> /usr/lib/x86_64-linux-gnu/qt5/mkspecs/linux-g++ -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtGui/5.14.2 -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtGui/5.14.2/QtGui -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/5.14.2 -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/5.14.2/QtCore -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtNetwork -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtNetwork/5.14.2 -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtNetwork/5.14.2/QtNetwork -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtSensors -isystem /usr/include/glib-2.0 
> -isystem /usr/lib/x86_64-linux-gnu/glib-2.0/include -isystem 
> /usr/include/gstreamer-1.0 -isystem /usr/include/orc-0.4 -fvisibility=hidden 
> -fvisibility-inlines-hidden -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. 
> -fstack-protector-strong -Wformat -Werror=format-security -g1 
> -Wno-class-memaccess -Wdate-time -D_FORTIFY_SOURCE=2 -DNDEBUG -fno-exceptions 
> -fno-strict-aliasing -fno-rtti -std=c++11 -Wno-expansion-to-defined   -Wall 
> -Wextra -Wcast-align -Wformat-security -Wmissing-format-attribute 
> -Wpointer-arith -Wundef -Wwrite-strings -fPIC  -fPIC -MD -MT 
> Source/WebCore/CMakeFiles/WebCore.dir/__/__/DerivedSources/WebCore/XPathGrammar.cpp.o
>  -MF 
> Source/WebCore/CMakeFiles/WebCore.dir/__/__/DerivedSources/WebCore/XPathGrammar.cpp.o.d
>  -o 
> Source/WebCore/CMakeFiles/WebCore.dir/__/__/DerivedSources/WebCore/XPathGrammar.cpp.o
>  -c DerivedSources/WebCore/XPathGrammar.cpp
> /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/DerivedSources/WebCore/XPathGrammar.cpp:120:10:
>  fatal error: XPathGrammar.hpp: No such file or directory
>   120 | #include "XPathGrammar.hpp"
>       |          ^~~~~~~~~~~~~~~~~~
> compilation terminated.
> [2917/4460] /usr/bin/c++  -DBUILDING_QT__=1 -DBUILDING_WITH_CMAKE=1 
> -DBUILDING_WebCore -DHAVE_CONFIG_H=1 -DJS_NO_EXPORT -DQT_ASCII_CAST_WARNINGS 
> -DQT_CORE_LIB -DQT_DEPRECATED_WARNINGS 
> -DQT_DISABLE_DEPRECATED_BEFORE=0x050000 -DQT_GUI_LIB -DQT_NETWORK_LIB 
> -DQT_NO_CAST_TO_ASCII -DQT_NO_DEBUG -DQT_NO_DYNAMIC_CAST -DQT_NO_EXCEPTIONS 
> -DQT_SENSORS_LIB -DQT_USE_QSTRINGBUILDER -ISource/WebCore -I../Source/WebCore 
> -I../Source/WebCore/Modules/airplay -I../Source/WebCore/Modules/battery 
> -I../Source/WebCore/Modules/encryptedmedia -I../Source/WebCore/Modules/fetch 
> -I../Source/WebCore/Modules/geolocation -I../Source/WebCore/Modules/indexeddb 
> -I../Source/WebCore/Modules/indexeddb/client 
> -I../Source/WebCore/Modules/indexeddb/server 
> -I../Source/WebCore/Modules/indexeddb/shared 
> -I../Source/WebCore/Modules/indieui -I../Source/WebCore/Modules/mediacontrols 
> -I../Source/WebCore/Modules/mediasession 
> -I../Source/WebCore/Modules/mediasource 
> -I../Source/WebCore/Modules/mediastream 
> -I../Source/WebCore/Modules/navigatorcontentutils 
> -I../Source/WebCore/Modules/notifications -I../Source/WebCore/Modules/plugins 
> -I../Source/WebCore/Modules/proximity -I../Source/WebCore/Modules/quota 
> -I../Source/WebCore/Modules/speech -I../Source/WebCore/Modules/streams 
> -I../Source/WebCore/Modules/vibration -I../Source/WebCore/Modules/webaudio 
> -I../Source/WebCore/Modules/webdatabase 
> -I../Source/WebCore/Modules/websockets -I../Source/WebCore/accessibility 
> -I../Source/WebCore/bindings -I../Source/WebCore/bindings/generic 
> -I../Source/WebCore/bindings/js -I../Source/WebCore/bridge 
> -I../Source/WebCore/bridge/c -I../Source/WebCore/bridge/jsc 
> -I../Source/WebCore/contentextensions -I../Source/WebCore/crypto 
> -I../Source/WebCore/crypto/algorithms -I../Source/WebCore/crypto/keys 
> -I../Source/WebCore/crypto/parameters -I../Source/WebCore/css 
> -I../Source/WebCore/cssjit -I../Source/WebCore/dom 
> -I../Source/WebCore/dom/default -I../Source/WebCore/editing 
> -I../Source/WebCore/fileapi -I../Source/WebCore/history 
> -I../Source/WebCore/html -I../Source/WebCore/html/canvas 
> -I../Source/WebCore/html/forms -I../Source/WebCore/html/parser 
> -I../Source/WebCore/html/shadow -I../Source/WebCore/html/track 
> -I../Source/WebCore/inspector -I../Source/WebCore/loader 
> -I../Source/WebCore/loader/appcache -I../Source/WebCore/loader/archive 
> -I../Source/WebCore/loader/archive/mhtml -I../Source/WebCore/loader/cache 
> -I../Source/WebCore/loader/icon -I../Source/WebCore/mathml 
> -I../Source/WebCore/page -I../Source/WebCore/page/animation 
> -I../Source/WebCore/page/csp -I../Source/WebCore/page/scrolling 
> -I../Source/WebCore/platform -I../Source/WebCore/platform/animation 
> -I../Source/WebCore/platform/audio -I../Source/WebCore/platform/crypto 
> -I../Source/WebCore/platform/graphics 
> -I../Source/WebCore/platform/graphics/cpu/arm 
> -I../Source/WebCore/platform/graphics/cpu/arm/filters 
> -I../Source/WebCore/platform/graphics/displaylists 
> -I../Source/WebCore/platform/graphics/filters 
> -I../Source/WebCore/platform/graphics/harfbuzz 
> -I../Source/WebCore/platform/graphics/harfbuzz/ng 
> -I../Source/WebCore/platform/graphics/opentype 
> -I../Source/WebCore/platform/graphics/transforms 
> -I../Source/WebCore/platform/mediastream -I../Source/WebCore/platform/mock 
> -I../Source/WebCore/platform/mock/mediasource 
> -I../Source/WebCore/platform/network -I../Source/WebCore/platform/sql 
> -I../Source/WebCore/platform/text -I../Source/WebCore/platform/text/icu 
> -I../Source/WebCore/plugins -I../Source/WebCore/rendering 
> -I../Source/WebCore/rendering/line -I../Source/WebCore/rendering/mathml 
> -I../Source/WebCore/rendering/shapes -I../Source/WebCore/rendering/style 
> -I../Source/WebCore/rendering/svg -I../Source/WebCore/replay 
> -I../Source/WebCore/storage -I../Source/WebCore/style -I../Source/WebCore/svg 
> -I../Source/WebCore/svg/animation -I../Source/WebCore/svg/graphics 
> -I../Source/WebCore/svg/graphics/filters -I../Source/WebCore/svg/properties 
> -I../Source/WebCore/websockets -I../Source/WebCore/workers 
> -I../Source/WebCore/xml -I../Source/WebCore/xml/parser -IDerivedSources 
> -IDerivedSources/ForwardingHeaders -IDerivedSources/WebCore -I../Source -I. 
> -I../Source/WebCore/Modules/gamepad/deprecated 
> -I../Source/WebCore/platform/graphics/gpu 
> -I../Source/WebCore/platform/image-decoders 
> -I../Source/WebCore/platform/image-decoders/bmp 
> -I../Source/WebCore/platform/image-decoders/gif 
> -I../Source/WebCore/platform/image-decoders/ico 
> -I../Source/WebCore/platform/image-decoders/jpeg 
> -I../Source/WebCore/platform/image-decoders/png 
> -I../Source/WebCore/platform/image-decoders/webp 
> -I../Source/WebCore/platform/linux 
> -I../Source/WebCore/platform/graphics/texmap 
> -I../Source/WebCore/page/scrolling/coordinatedgraphics 
> -I../Source/WebCore/platform/graphics/texmap/coordinated 
> -IDerivedSources/JavaScriptCore -IDerivedSources/JavaScriptCore/inspector 
> -I../Source/JavaScriptCore -I../Source/JavaScriptCore/ForwardingHeaders 
> -I../Source/JavaScriptCore/API -I../Source/JavaScriptCore/assembler 
> -I../Source/JavaScriptCore/bytecode -I../Source/JavaScriptCore/bytecompiler 
> -I../Source/JavaScriptCore/dfg -I../Source/JavaScriptCore/disassembler 
> -I../Source/JavaScriptCore/heap -I../Source/JavaScriptCore/debugger 
> -I../Source/JavaScriptCore/interpreter -I../Source/JavaScriptCore/jit 
> -I../Source/JavaScriptCore/llint -I../Source/JavaScriptCore/parser 
> -I../Source/JavaScriptCore/profiler -I../Source/JavaScriptCore/runtime 
> -I../Source/JavaScriptCore/yarr -I../Source/ThirdParty/ANGLE 
> -I../Source/ThirdParty/ANGLE/include/KHR -I../Source/WebCore/Modules/gamepad 
> -I../Source/WebCore/bridge/qt -I../Source/WebCore/dom/qt 
> -I../Source/WebCore/editing/qt -I../Source/WebCore/history/qt 
> -I../Source/WebCore/page/qt -I../Source/WebCore/platform/qt 
> -I../Source/WebCore/platform/audio/qt 
> -I../Source/WebCore/platform/graphics/egl 
> -I../Source/WebCore/platform/graphics/glx 
> -I../Source/WebCore/platform/graphics/gpu/qt 
> -I../Source/WebCore/platform/graphics/opengl 
> -I../Source/WebCore/platform/graphics/surfaces 
> -I../Source/WebCore/platform/graphics/surfaces/qt 
> -I../Source/WebCore/platform/graphics/qt 
> -I../Source/WebCore/platform/graphics/win 
> -I../Source/WebCore/platform/network/qt -I../Source/WebCore/platform/text/qt 
> -I../Source/WebCore/platform/win -I../Source/WebCore/platform/graphics/x11 
> -I../Source/WTF -I../Source/WebCore/platform/mediastream/openwebrtc 
> -I../Source/WebCore/platform/graphics/gstreamer 
> -I../Source/WebCore/platform/audio/gstreamer -I../Source/WebCore/testing 
> -isystem /usr/include/libxml2 -isystem /usr/include/x86_64-linux-gnu/qt5 
> -isystem /usr/include/x86_64-linux-gnu/qt5/QtGui -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtCore -isystem 
> /usr/lib/x86_64-linux-gnu/qt5/mkspecs/linux-g++ -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtGui/5.14.2 -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtGui/5.14.2/QtGui -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/5.14.2 -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/5.14.2/QtCore -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtNetwork -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtNetwork/5.14.2 -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtNetwork/5.14.2/QtNetwork -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtSensors -isystem /usr/include/glib-2.0 
> -isystem /usr/lib/x86_64-linux-gnu/glib-2.0/include -isystem 
> /usr/include/gstreamer-1.0 -isystem /usr/include/orc-0.4 -fvisibility=hidden 
> -fvisibility-inlines-hidden -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. 
> -fstack-protector-strong -Wformat -Werror=format-security -g1 
> -Wno-class-memaccess -Wdate-time -D_FORTIFY_SOURCE=2 -DNDEBUG -fno-exceptions 
> -fno-strict-aliasing -fno-rtti -std=c++11 -Wno-expansion-to-defined   -Wall 
> -Wextra -Wcast-align -Wformat-security -Wmissing-format-attribute 
> -Wpointer-arith -Wundef -Wwrite-strings -fPIC  -fPIC -MD -MT 
> Source/WebCore/CMakeFiles/WebCore.dir/__/__/DerivedSources/WebCore/SelectorPseudoClassAndCompatibilityElementMap.cpp.o
>  -MF 
> Source/WebCore/CMakeFiles/WebCore.dir/__/__/DerivedSources/WebCore/SelectorPseudoClassAndCompatibilityElementMap.cpp.o.d
>  -o 
> Source/WebCore/CMakeFiles/WebCore.dir/__/__/DerivedSources/WebCore/SelectorPseudoClassAndCompatibilityElementMap.cpp.o
>  -c DerivedSources/WebCore/SelectorPseudoClassAndCompatibilityElementMap.cpp
> [2918/4460] /usr/bin/c++  -DBUILDING_QT__=1 -DBUILDING_WITH_CMAKE=1 
> -DBUILDING_WebCore -DHAVE_CONFIG_H=1 -DJS_NO_EXPORT -DQT_ASCII_CAST_WARNINGS 
> -DQT_CORE_LIB -DQT_DEPRECATED_WARNINGS 
> -DQT_DISABLE_DEPRECATED_BEFORE=0x050000 -DQT_GUI_LIB -DQT_NETWORK_LIB 
> -DQT_NO_CAST_TO_ASCII -DQT_NO_DEBUG -DQT_NO_DYNAMIC_CAST -DQT_NO_EXCEPTIONS 
> -DQT_SENSORS_LIB -DQT_USE_QSTRINGBUILDER -ISource/WebCore -I../Source/WebCore 
> -I../Source/WebCore/Modules/airplay -I../Source/WebCore/Modules/battery 
> -I../Source/WebCore/Modules/encryptedmedia -I../Source/WebCore/Modules/fetch 
> -I../Source/WebCore/Modules/geolocation -I../Source/WebCore/Modules/indexeddb 
> -I../Source/WebCore/Modules/indexeddb/client 
> -I../Source/WebCore/Modules/indexeddb/server 
> -I../Source/WebCore/Modules/indexeddb/shared 
> -I../Source/WebCore/Modules/indieui -I../Source/WebCore/Modules/mediacontrols 
> -I../Source/WebCore/Modules/mediasession 
> -I../Source/WebCore/Modules/mediasource 
> -I../Source/WebCore/Modules/mediastream 
> -I../Source/WebCore/Modules/navigatorcontentutils 
> -I../Source/WebCore/Modules/notifications -I../Source/WebCore/Modules/plugins 
> -I../Source/WebCore/Modules/proximity -I../Source/WebCore/Modules/quota 
> -I../Source/WebCore/Modules/speech -I../Source/WebCore/Modules/streams 
> -I../Source/WebCore/Modules/vibration -I../Source/WebCore/Modules/webaudio 
> -I../Source/WebCore/Modules/webdatabase 
> -I../Source/WebCore/Modules/websockets -I../Source/WebCore/accessibility 
> -I../Source/WebCore/bindings -I../Source/WebCore/bindings/generic 
> -I../Source/WebCore/bindings/js -I../Source/WebCore/bridge 
> -I../Source/WebCore/bridge/c -I../Source/WebCore/bridge/jsc 
> -I../Source/WebCore/contentextensions -I../Source/WebCore/crypto 
> -I../Source/WebCore/crypto/algorithms -I../Source/WebCore/crypto/keys 
> -I../Source/WebCore/crypto/parameters -I../Source/WebCore/css 
> -I../Source/WebCore/cssjit -I../Source/WebCore/dom 
> -I../Source/WebCore/dom/default -I../Source/WebCore/editing 
> -I../Source/WebCore/fileapi -I../Source/WebCore/history 
> -I../Source/WebCore/html -I../Source/WebCore/html/canvas 
> -I../Source/WebCore/html/forms -I../Source/WebCore/html/parser 
> -I../Source/WebCore/html/shadow -I../Source/WebCore/html/track 
> -I../Source/WebCore/inspector -I../Source/WebCore/loader 
> -I../Source/WebCore/loader/appcache -I../Source/WebCore/loader/archive 
> -I../Source/WebCore/loader/archive/mhtml -I../Source/WebCore/loader/cache 
> -I../Source/WebCore/loader/icon -I../Source/WebCore/mathml 
> -I../Source/WebCore/page -I../Source/WebCore/page/animation 
> -I../Source/WebCore/page/csp -I../Source/WebCore/page/scrolling 
> -I../Source/WebCore/platform -I../Source/WebCore/platform/animation 
> -I../Source/WebCore/platform/audio -I../Source/WebCore/platform/crypto 
> -I../Source/WebCore/platform/graphics 
> -I../Source/WebCore/platform/graphics/cpu/arm 
> -I../Source/WebCore/platform/graphics/cpu/arm/filters 
> -I../Source/WebCore/platform/graphics/displaylists 
> -I../Source/WebCore/platform/graphics/filters 
> -I../Source/WebCore/platform/graphics/harfbuzz 
> -I../Source/WebCore/platform/graphics/harfbuzz/ng 
> -I../Source/WebCore/platform/graphics/opentype 
> -I../Source/WebCore/platform/graphics/transforms 
> -I../Source/WebCore/platform/mediastream -I../Source/WebCore/platform/mock 
> -I../Source/WebCore/platform/mock/mediasource 
> -I../Source/WebCore/platform/network -I../Source/WebCore/platform/sql 
> -I../Source/WebCore/platform/text -I../Source/WebCore/platform/text/icu 
> -I../Source/WebCore/plugins -I../Source/WebCore/rendering 
> -I../Source/WebCore/rendering/line -I../Source/WebCore/rendering/mathml 
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> -isystem /usr/lib/x86_64-linux-gnu/glib-2.0/include -isystem 
> /usr/include/gstreamer-1.0 -isystem /usr/include/orc-0.4 -fvisibility=hidden 
> -fvisibility-inlines-hidden -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. 
> -fstack-protector-strong -Wformat -Werror=format-security -g1 
> -Wno-class-memaccess -Wdate-time -D_FORTIFY_SOURCE=2 -DNDEBUG -fno-exceptions 
> -fno-strict-aliasing -fno-rtti -std=c++11 -Wno-expansion-to-defined   -Wall 
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> Source/WebCore/CMakeFiles/WebCore.dir/__/__/DerivedSources/WebCore/StyleBuilder.cpp.o
>  -MF 
> Source/WebCore/CMakeFiles/WebCore.dir/__/__/DerivedSources/WebCore/StyleBuilder.cpp.o.d
>  -o 
> Source/WebCore/CMakeFiles/WebCore.dir/__/__/DerivedSources/WebCore/StyleBuilder.cpp.o
>  -c DerivedSources/WebCore/StyleBuilder.cpp
> In file included from ../Source/WebCore/rendering/style/RenderStyle.h:52,
>                  from DerivedSources/WebCore/StyleBuilder.cpp:8:
> ../Source/WebCore/rendering/style/SVGRenderStyle.h: In member function ‘void 
> WebCore::SVGRenderStyle::setKerning(const WebCore::SVGLength&)’:
> ../Source/WebCore/rendering/style/SVGRenderStyle.h:249:38: warning: 
> implicitly-declared ‘WebCore::SVGLength& WebCore::SVGLength::operator=(const 
> WebCore::SVGLength&)’ is deprecated [-Wdeprecated-copy]
>   249 |             text.access()->kerning = obj;
>       |                                      ^~~
> In file included from 
> ../Source/WebCore/rendering/style/SVGRenderStyleDefs.h:33,
>                  from ../Source/WebCore/css/CSSPrimitiveValueMappings.h:46,
>                  from DerivedSources/WebCore/StyleBuilder.cpp:6:
> ../Source/WebCore/svg/SVGLength.h:62:5: note: because ‘WebCore::SVGLength’ 
> has user-provided ‘WebCore::SVGLength::SVGLength(const WebCore::SVGLength&)’
>    62 |     SVGLength(const SVGLength&);
>       |     ^~~~~~~~~
> In file included from ../Source/WebCore/rendering/style/RenderStyle.h:52,
>                  from DerivedSources/WebCore/StyleBuilder.cpp:8:
> ../Source/WebCore/rendering/style/SVGRenderStyle.h: In member function ‘void 
> WebCore::SVGRenderStyle::setBaselineShiftValue(const WebCore::SVGLength&)’:
> ../Source/WebCore/rendering/style/SVGRenderStyle.h:285:49: warning: 
> implicitly-declared ‘WebCore::SVGLength& WebCore::SVGLength::operator=(const 
> WebCore::SVGLength&)’ is deprecated [-Wdeprecated-copy]
>   285 |             misc.access()->baselineShiftValue = obj;
>       |                                                 ^~~
> In file included from 
> ../Source/WebCore/rendering/style/SVGRenderStyleDefs.h:33,
>                  from ../Source/WebCore/css/CSSPrimitiveValueMappings.h:46,
>                  from DerivedSources/WebCore/StyleBuilder.cpp:6:
> ../Source/WebCore/svg/SVGLength.h:62:5: note: because ‘WebCore::SVGLength’ 
> has user-provided ‘WebCore::SVGLength::SVGLength(const WebCore::SVGLength&)’
>    62 |     SVGLength(const SVGLength&);
>       |     ^~~~~~~~~
> In file included from ../Source/WTF/wtf/FastMalloc.h:26,
>                  from ../Source/WebCore/config.h:75,
>                  from DerivedSources/WebCore/StyleBuilder.cpp:3:
> ../Source/WebCore/rendering/style/BasicShapes.h: In member function ‘void 
> WebCore::BasicShapeCircle::setCenterX(WebCore::BasicShapeCenterCoordinate)’:
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: implicitly-declared 
> ‘WebCore::BasicShapeCenterCoordinate& 
> WebCore::BasicShapeCenterCoordinate::operator=(const 
> WebCore::BasicShapeCenterCoordinate&)’ is deprecated [-Wdeprecated-copy]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WebCore/rendering/style/BasicShapes.h:186:71: note: in expansion of 
> macro ‘WTFMove’
>   186 |     void setCenterX(BasicShapeCenterCoordinate centerX) { m_centerX = 
> WTFMove(centerX); }
>       |                                                                       
> ^~~~~~~
> In file included from ../Source/WebCore/rendering/style/ShapeValue.h:33,
>                  from ../Source/WebCore/rendering/style/RenderStyle.h:54,
>                  from DerivedSources/WebCore/StyleBuilder.cpp:8:
> ../Source/WebCore/rendering/style/BasicShapes.h:93:5: note: because 
> ‘WebCore::BasicShapeCenterCoordinate’ has user-provided 
> ‘WebCore::BasicShapeCenterCoordinate::BasicShapeCenterCoordinate(const 
> WebCore::BasicShapeCenterCoordinate&)’
>    93 |     BasicShapeCenterCoordinate(const BasicShapeCenterCoordinate& 
> other)
>       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~
> In file included from ../Source/WTF/wtf/FastMalloc.h:26,
>                  from ../Source/WebCore/config.h:75,
>                  from DerivedSources/WebCore/StyleBuilder.cpp:3:
> ../Source/WebCore/rendering/style/BasicShapes.h: In member function ‘void 
> WebCore::BasicShapeCircle::setCenterY(WebCore::BasicShapeCenterCoordinate)’:
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: implicitly-declared 
> ‘WebCore::BasicShapeCenterCoordinate& 
> WebCore::BasicShapeCenterCoordinate::operator=(const 
> WebCore::BasicShapeCenterCoordinate&)’ is deprecated [-Wdeprecated-copy]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WebCore/rendering/style/BasicShapes.h:187:71: note: in expansion of 
> macro ‘WTFMove’
>   187 |     void setCenterY(BasicShapeCenterCoordinate centerY) { m_centerY = 
> WTFMove(centerY); }
>       |                                                                       
> ^~~~~~~
> In file included from ../Source/WebCore/rendering/style/ShapeValue.h:33,
>                  from ../Source/WebCore/rendering/style/RenderStyle.h:54,
>                  from DerivedSources/WebCore/StyleBuilder.cpp:8:
> ../Source/WebCore/rendering/style/BasicShapes.h:93:5: note: because 
> ‘WebCore::BasicShapeCenterCoordinate’ has user-provided 
> ‘WebCore::BasicShapeCenterCoordinate::BasicShapeCenterCoordinate(const 
> WebCore::BasicShapeCenterCoordinate&)’
>    93 |     BasicShapeCenterCoordinate(const BasicShapeCenterCoordinate& 
> other)
>       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~
> In file included from ../Source/WTF/wtf/FastMalloc.h:26,
>                  from ../Source/WebCore/config.h:75,
>                  from DerivedSources/WebCore/StyleBuilder.cpp:3:
> ../Source/WebCore/rendering/style/BasicShapes.h: In member function ‘void 
> WebCore::BasicShapeCircle::setRadius(WebCore::BasicShapeRadius)’:
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: implicitly-declared 
> ‘WebCore::BasicShapeRadius& WebCore::BasicShapeRadius::operator=(const 
> WebCore::BasicShapeRadius&)’ is deprecated [-Wdeprecated-copy]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WebCore/rendering/style/BasicShapes.h:188:58: note: in expansion of 
> macro ‘WTFMove’
>   188 |     void setRadius(BasicShapeRadius radius) { m_radius = 
> WTFMove(radius); }
>       |                                                          ^~~~~~~
> In file included from ../Source/WebCore/rendering/style/ShapeValue.h:33,
>                  from ../Source/WebCore/rendering/style/RenderStyle.h:54,
>                  from DerivedSources/WebCore/StyleBuilder.cpp:8:
> ../Source/WebCore/rendering/style/BasicShapes.h:144:5: note: because 
> ‘WebCore::BasicShapeRadius’ has user-provided 
> ‘WebCore::BasicShapeRadius::BasicShapeRadius(const 
> WebCore::BasicShapeRadius&)’
>   144 |     BasicShapeRadius(const BasicShapeRadius& other)
>       |     ^~~~~~~~~~~~~~~~
> In file included from ../Source/WTF/wtf/FastMalloc.h:26,
>                  from ../Source/WebCore/config.h:75,
>                  from DerivedSources/WebCore/StyleBuilder.cpp:3:
> ../Source/WebCore/rendering/style/BasicShapes.h: In member function ‘void 
> WebCore::BasicShapeEllipse::setCenterX(WebCore::BasicShapeCenterCoordinate)’:
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: implicitly-declared 
> ‘WebCore::BasicShapeCenterCoordinate& 
> WebCore::BasicShapeCenterCoordinate::operator=(const 
> WebCore::BasicShapeCenterCoordinate&)’ is deprecated [-Wdeprecated-copy]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WebCore/rendering/style/BasicShapes.h:217:71: note: in expansion of 
> macro ‘WTFMove’
>   217 |     void setCenterX(BasicShapeCenterCoordinate centerX) { m_centerX = 
> WTFMove(centerX); }
>       |                                                                       
> ^~~~~~~
> In file included from ../Source/WebCore/rendering/style/ShapeValue.h:33,
>                  from ../Source/WebCore/rendering/style/RenderStyle.h:54,
>                  from DerivedSources/WebCore/StyleBuilder.cpp:8:
> ../Source/WebCore/rendering/style/BasicShapes.h:93:5: note: because 
> ‘WebCore::BasicShapeCenterCoordinate’ has user-provided 
> ‘WebCore::BasicShapeCenterCoordinate::BasicShapeCenterCoordinate(const 
> WebCore::BasicShapeCenterCoordinate&)’
>    93 |     BasicShapeCenterCoordinate(const BasicShapeCenterCoordinate& 
> other)
>       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~
> In file included from ../Source/WTF/wtf/FastMalloc.h:26,
>                  from ../Source/WebCore/config.h:75,
>                  from DerivedSources/WebCore/StyleBuilder.cpp:3:
> ../Source/WebCore/rendering/style/BasicShapes.h: In member function ‘void 
> WebCore::BasicShapeEllipse::setCenterY(WebCore::BasicShapeCenterCoordinate)’:
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: implicitly-declared 
> ‘WebCore::BasicShapeCenterCoordinate& 
> WebCore::BasicShapeCenterCoordinate::operator=(const 
> WebCore::BasicShapeCenterCoordinate&)’ is deprecated [-Wdeprecated-copy]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WebCore/rendering/style/BasicShapes.h:218:71: note: in expansion of 
> macro ‘WTFMove’
>   218 |     void setCenterY(BasicShapeCenterCoordinate centerY) { m_centerY = 
> WTFMove(centerY); }
>       |                                                                       
> ^~~~~~~
> In file included from ../Source/WebCore/rendering/style/ShapeValue.h:33,
>                  from ../Source/WebCore/rendering/style/RenderStyle.h:54,
>                  from DerivedSources/WebCore/StyleBuilder.cpp:8:
> ../Source/WebCore/rendering/style/BasicShapes.h:93:5: note: because 
> ‘WebCore::BasicShapeCenterCoordinate’ has user-provided 
> ‘WebCore::BasicShapeCenterCoordinate::BasicShapeCenterCoordinate(const 
> WebCore::BasicShapeCenterCoordinate&)’
>    93 |     BasicShapeCenterCoordinate(const BasicShapeCenterCoordinate& 
> other)
>       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~
> In file included from ../Source/WTF/wtf/FastMalloc.h:26,
>                  from ../Source/WebCore/config.h:75,
>                  from DerivedSources/WebCore/StyleBuilder.cpp:3:
> ../Source/WebCore/rendering/style/BasicShapes.h: In member function ‘void 
> WebCore::BasicShapeEllipse::setRadiusX(WebCore::BasicShapeRadius)’:
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: implicitly-declared 
> ‘WebCore::BasicShapeRadius& WebCore::BasicShapeRadius::operator=(const 
> WebCore::BasicShapeRadius&)’ is deprecated [-Wdeprecated-copy]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WebCore/rendering/style/BasicShapes.h:219:61: note: in expansion of 
> macro ‘WTFMove’
>   219 |     void setRadiusX(BasicShapeRadius radiusX) { m_radiusX = 
> WTFMove(radiusX); }
>       |                                                             ^~~~~~~
> In file included from ../Source/WebCore/rendering/style/ShapeValue.h:33,
>                  from ../Source/WebCore/rendering/style/RenderStyle.h:54,
>                  from DerivedSources/WebCore/StyleBuilder.cpp:8:
> ../Source/WebCore/rendering/style/BasicShapes.h:144:5: note: because 
> ‘WebCore::BasicShapeRadius’ has user-provided 
> ‘WebCore::BasicShapeRadius::BasicShapeRadius(const 
> WebCore::BasicShapeRadius&)’
>   144 |     BasicShapeRadius(const BasicShapeRadius& other)
>       |     ^~~~~~~~~~~~~~~~
> In file included from ../Source/WTF/wtf/FastMalloc.h:26,
>                  from ../Source/WebCore/config.h:75,
>                  from DerivedSources/WebCore/StyleBuilder.cpp:3:
> ../Source/WebCore/rendering/style/BasicShapes.h: In member function ‘void 
> WebCore::BasicShapeEllipse::setRadiusY(WebCore::BasicShapeRadius)’:
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: implicitly-declared 
> ‘WebCore::BasicShapeRadius& WebCore::BasicShapeRadius::operator=(const 
> WebCore::BasicShapeRadius&)’ is deprecated [-Wdeprecated-copy]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WebCore/rendering/style/BasicShapes.h:220:61: note: in expansion of 
> macro ‘WTFMove’
>   220 |     void setRadiusY(BasicShapeRadius radiusY) { m_radiusY = 
> WTFMove(radiusY); }
>       |                                                             ^~~~~~~
> In file included from ../Source/WebCore/rendering/style/ShapeValue.h:33,
>                  from ../Source/WebCore/rendering/style/RenderStyle.h:54,
>                  from DerivedSources/WebCore/StyleBuilder.cpp:8:
> ../Source/WebCore/rendering/style/BasicShapes.h:144:5: note: because 
> ‘WebCore::BasicShapeRadius’ has user-provided 
> ‘WebCore::BasicShapeRadius::BasicShapeRadius(const 
> WebCore::BasicShapeRadius&)’
>   144 |     BasicShapeRadius(const BasicShapeRadius& other)
>       |     ^~~~~~~~~~~~~~~~
> In file included from ../Source/WTF/wtf/FastMalloc.h:26,
>                  from ../Source/WebCore/config.h:75,
>                  from DerivedSources/WebCore/StyleBuilder.cpp:3:
> ../Source/WTF/wtf/text/StringConcatenate.h: In instantiation of ‘WTF::String 
> WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::String, char>; StringType2 = WTF::String]’:
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = WTF::StringAppend<WTF::String, char>; StringType2 = 
> WTF::String]’
> ../Source/WebCore/css/Pair.h:61:30:   required from here
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ../Source/WTF/wtf/text/StringConcatenate.h: In instantiation of ‘WTF::String 
> WTF::tryMakeString(StringType1, StringType2) [with StringType1 = WTF::String; 
> StringType2 = const char*]’:
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = WTF::String; StringType2 = const char*]’
> ../Source/WebCore/css/StyleBuilderConverter.h:941:91:   required from here
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ../Source/WTF/wtf/text/StringConcatenate.h: In instantiation of ‘WTF::String 
> WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>, WTF::String>; StringType2 = char]’:
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>, WTF::String>; StringType2 = char]’
> ../Source/WebCore/css/Rect.h:85:77:   required from here
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ../Source/WTF/wtf/text/StringConcatenate.h: In instantiation of ‘WTF::String 
> WTF::tryMakeString(StringType1, StringType2) [with StringType1 = WTF::String; 
> StringType2 = char]’:
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = WTF::String; StringType2 = char]’
> ../Source/WTF/wtf/text/StringOperators.h:100:38:   required from ‘WTF::String 
> WTF::StringTypeAdapter<WTF::StringAppend<StringType1, StringType2> 
> >::toString() const [with StringType1 = WTF::String; StringType2 = char]’
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   required from 
> ‘WTF::String WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::String, char>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = WTF::StringAppend<WTF::String, char>; StringType2 = 
> WTF::String]’
> ../Source/WebCore/css/Pair.h:61:30:   required from here
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ../Source/WTF/wtf/text/StringConcatenate.h: In instantiation of ‘WTF::String 
> WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>; StringType2 = WTF::String]’:
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringOperators.h:100:38:   required from ‘WTF::String 
> WTF::StringTypeAdapter<WTF::StringAppend<StringType1, StringType2> 
> >::toString() const [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   required from 
> ‘WTF::String WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>, WTF::String>; StringType2 = char]’
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>, WTF::String>; StringType2 = char]’
> ../Source/WebCore/css/Rect.h:85:77:   required from here
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ../Source/WTF/wtf/text/StringConcatenate.h: In instantiation of ‘WTF::String 
> WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>; 
> StringType2 = const char*]’:
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>; 
> StringType2 = const char*]’
> ../Source/WTF/wtf/text/StringOperators.h:100:38:   required from ‘WTF::String 
> WTF::StringTypeAdapter<WTF::StringAppend<StringType1, StringType2> 
> >::toString() const [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>; 
> StringType2 = const char*]’
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   required from 
> ‘WTF::String WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringOperators.h:100:38:   required from ‘WTF::String 
> WTF::StringTypeAdapter<WTF::StringAppend<StringType1, StringType2> 
> >::toString() const [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   required from 
> ‘WTF::String WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>, WTF::String>; StringType2 = char]’
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>, WTF::String>; StringType2 = char]’
> ../Source/WebCore/css/Rect.h:85:77:   required from here
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ../Source/WTF/wtf/text/StringConcatenate.h: In instantiation of ‘WTF::String 
> WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const 
> char*, WTF::String>, const char*>, WTF::String>, const char*>; StringType2 = 
> WTF::String]’:
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const 
> char*, WTF::String>, const char*>, WTF::String>, const char*>; StringType2 = 
> WTF::String]’
> ../Source/WTF/wtf/text/StringOperators.h:100:38:   required from ‘WTF::String 
> WTF::StringTypeAdapter<WTF::StringAppend<StringType1, StringType2> 
> >::toString() const [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const 
> char*, WTF::String>, const char*>, WTF::String>, const char*>; StringType2 = 
> WTF::String]’
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   required from 
> ‘WTF::String WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>; 
> StringType2 = const char*]’
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>; 
> StringType2 = const char*]’
> ../Source/WTF/wtf/text/StringOperators.h:100:38:   required from ‘WTF::String 
> WTF::StringTypeAdapter<WTF::StringAppend<StringType1, StringType2> 
> >::toString() const [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>; 
> StringType2 = const char*]’
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   required from 
> ‘WTF::String WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringOperators.h:100:38:   required from ‘WTF::String 
> WTF::StringTypeAdapter<WTF::StringAppend<StringType1, StringType2> 
> >::toString() const [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   required from 
> ‘WTF::String WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>, WTF::String>; StringType2 = char]’
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>, WTF::String>; StringType2 = char]’
> ../Source/WebCore/css/Rect.h:85:77:   required from here
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ../Source/WTF/wtf/text/StringConcatenate.h: In instantiation of ‘WTF::String 
> WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const char*, 
> WTF::String>, const char*>, WTF::String>; StringType2 = const char*]’:
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const char*, 
> WTF::String>, const char*>, WTF::String>; StringType2 = const char*]’
> ../Source/WTF/wtf/text/StringOperators.h:100:38:   required from ‘WTF::String 
> WTF::StringTypeAdapter<WTF::StringAppend<StringType1, StringType2> 
> >::toString() const [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const char*, 
> WTF::String>, const char*>, WTF::String>; StringType2 = const char*]’
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   required from 
> ‘WTF::String WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const 
> char*, WTF::String>, const char*>, WTF::String>, const char*>; StringType2 = 
> WTF::String]’
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const 
> char*, WTF::String>, const char*>, WTF::String>, const char*>; StringType2 = 
> WTF::String]’
> ../Source/WTF/wtf/text/StringOperators.h:100:38:   required from ‘WTF::String 
> WTF::StringTypeAdapter<WTF::StringAppend<StringType1, StringType2> 
> >::toString() const [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const 
> char*, WTF::String>, const char*>, WTF::String>, const char*>; StringType2 = 
> WTF::String]’
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   [ skipping 3 
> instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   required from 
> ‘WTF::String WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringOperators.h:100:38:   required from ‘WTF::String 
> WTF::StringTypeAdapter<WTF::StringAppend<StringType1, StringType2> 
> >::toString() const [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   required from 
> ‘WTF::String WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>, WTF::String>; StringType2 = char]’
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>, WTF::String>; StringType2 = char]’
> ../Source/WebCore/css/Rect.h:85:77:   required from here
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ../Source/WTF/wtf/text/StringConcatenate.h: In instantiation of ‘WTF::String 
> WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<const char*, WTF::String>, const char*>; 
> StringType2 = WTF::String]’:
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = WTF::StringAppend<WTF::StringAppend<const char*, 
> WTF::String>, const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringOperators.h:100:38:   required from ‘WTF::String 
> WTF::StringTypeAdapter<WTF::StringAppend<StringType1, StringType2> 
> >::toString() const [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<const char*, WTF::String>, const char*>; 
> StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   required from 
> ‘WTF::String WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const char*, 
> WTF::String>, const char*>, WTF::String>; StringType2 = const char*]’
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const char*, 
> WTF::String>, const char*>, WTF::String>; StringType2 = const char*]’
> ../Source/WTF/wtf/text/StringOperators.h:100:38:   required from ‘WTF::String 
> WTF::StringTypeAdapter<WTF::StringAppend<StringType1, StringType2> 
> >::toString() const [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const char*, 
> WTF::String>, const char*>, WTF::String>; StringType2 = const char*]’
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   [ skipping 6 
> instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   required from 
> ‘WTF::String WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringOperators.h:100:38:   required from ‘WTF::String 
> WTF::StringTypeAdapter<WTF::StringAppend<StringType1, StringType2> 
> >::toString() const [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   required from 
> ‘WTF::String WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>, WTF::String>; StringType2 = char]’
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>, WTF::String>; StringType2 = char]’
> ../Source/WebCore/css/Rect.h:85:77:   required from here
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ../Source/WTF/wtf/text/StringConcatenate.h: In instantiation of ‘WTF::String 
> WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<const char*, WTF::String>; StringType2 = const char*]’:
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = WTF::StringAppend<const char*, WTF::String>; StringType2 
> = const char*]’
> ../Source/WTF/wtf/text/StringOperators.h:100:38:   required from ‘WTF::String 
> WTF::StringTypeAdapter<WTF::StringAppend<StringType1, StringType2> 
> >::toString() const [with StringType1 = WTF::StringAppend<const char*, 
> WTF::String>; StringType2 = const char*]’
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   required from 
> ‘WTF::String WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<const char*, WTF::String>, const char*>; 
> StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = WTF::StringAppend<WTF::StringAppend<const char*, 
> WTF::String>, const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringOperators.h:100:38:   required from ‘WTF::String 
> WTF::StringTypeAdapter<WTF::StringAppend<StringType1, StringType2> 
> >::toString() const [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<const char*, WTF::String>, const char*>; 
> StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   [ skipping 9 
> instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   required from 
> ‘WTF::String WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringOperators.h:100:38:   required from ‘WTF::String 
> WTF::StringTypeAdapter<WTF::StringAppend<StringType1, StringType2> 
> >::toString() const [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   required from 
> ‘WTF::String WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>, WTF::String>; StringType2 = char]’
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>, WTF::String>; StringType2 = char]’
> ../Source/WebCore/css/Rect.h:85:77:   required from here
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ../Source/WTF/wtf/text/StringConcatenate.h: In instantiation of ‘WTF::String 
> WTF::tryMakeString(StringType1, StringType2) [with StringType1 = const char*; 
> StringType2 = WTF::String]’:
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = const char*; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringOperators.h:100:38:   required from ‘WTF::String 
> WTF::StringTypeAdapter<WTF::StringAppend<StringType1, StringType2> 
> >::toString() const [with StringType1 = const char*; StringType2 = 
> WTF::String]’
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   required from 
> ‘WTF::String WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<const char*, WTF::String>; StringType2 = const char*]’
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = WTF::StringAppend<const char*, WTF::String>; StringType2 
> = const char*]’
> ../Source/WTF/wtf/text/StringOperators.h:100:38:   required from ‘WTF::String 
> WTF::StringTypeAdapter<WTF::StringAppend<StringType1, StringType2> 
> >::toString() const [with StringType1 = WTF::StringAppend<const char*, 
> WTF::String>; StringType2 = const char*]’
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   [ skipping 12 
> instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   required from 
> ‘WTF::String WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringOperators.h:100:38:   required from ‘WTF::String 
> WTF::StringTypeAdapter<WTF::StringAppend<StringType1, StringType2> 
> >::toString() const [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>; StringType2 = WTF::String]’
> ../Source/WTF/wtf/text/StringConcatenate.h:277:33:   required from 
> ‘WTF::String WTF::tryMakeString(StringType1, StringType2) [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>, WTF::String>; StringType2 = char]’
> ../Source/WTF/wtf/text/StringOperators.h:38:38:   required from 
> ‘WTF::StringAppend<StringType1, StringType2>::operator WTF::String() const 
> [with StringType1 = 
> WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<WTF::StringAppend<const
>  char*, WTF::String>, const char*>, WTF::String>, const char*>, WTF::String>, 
> const char*>, WTF::String>; StringType2 = char]’
> ../Source/WebCore/css/Rect.h:85:77:   required from here
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:298:16: note: in expansion of 
> macro ‘WTFMove’
>   298 |         return WTFMove(resultImpl);
>       |                ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: warning: redundant move in return 
> statement [-Wredundant-move]
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ../Source/WTF/wtf/StdLibExtras.h:388:64: note: remove ‘std::move’ call
>   388 | #define WTFMove(value) std::move<WTF::CheckMoveParameter>(value)
>       |                                                                ^
> ../Source/WTF/wtf/text/StringConcatenate.h:311:12: note: in expansion of 
> macro ‘WTFMove’
>   311 |     return WTFMove(resultImpl);
>       |            ^~~~~~~
> ninja: build stopped: subcommand failed.
> dh_auto_build: error: cd obj-x86_64-linux-gnu && LC_ALL=C.UTF-8 ninja -j4 -v 
> returned exit code 1
> make: *** [debian/rules:50: build] Error 25

The full build log is available from:
   
http://qa-logs.debian.net/2020/08/02/qtwebkit-opensource-src_5.212.0~alpha4-4_unstable.log

A list of current common problems and possible solutions is available at
http://wiki.debian.org/qa.debian.org/FTBFS . You're welcome to contribute!

About the archive rebuild: The rebuild was done on EC2 VM instances from
Amazon Web Services, using a clean, minimal and up-to-date chroot. Every
failed build was retried once to eliminate random failures.

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