these 2 derivations will be built:
  /nix/store/n078dxz6ckp8lyp3jj68x4596gmaswn1-webkitgtk-2.38.3+abi=4.0.drv
  /nix/store/01rm0fkcvp42dy2mz04cnyb69c3jvlzy-bespokesynth-1.1.0.drv
error: Cannot build '/nix/store/n078dxz6ckp8lyp3jj68x4596gmaswn1-webkitgtk-2.38.3+abi=4.0.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/0gva2jivdzqm734yzilxd404s80xhana-webkitgtk-2.38.3+abi=4.0-dev
         /nix/store/1jg7a7pnyvjigzmsk4p4h60a0ph1jzkk-webkitgtk-2.38.3+abi=4.0
         /nix/store/pxmjzp12axrsa50jf3asj915bw2bf64b-webkitgtk-2.38.3+abi=4.0-debug
         /nix/store/wm52b02fvd3ygfikwk6wnwc1l4wjf6s4-webkitgtk-2.38.3+abi=4.0-devdoc
       Last 25 log lines:
       > /build/webkitgtk-2.38.3/build/WebCore/DerivedSources/JSMediaEncodingConfiguration.cpp:46:32: warning: '*(WebCore::VideoConfiguration*)((char*)&result + offsetof(WebCore::MediaEncodingConfiguration, WebCore::MediaEncodingConfiguration::<unnamed>.WebCore::MediaConfiguration::video.std::optional<WebCore::VideoConfiguration>::<unnamed>.std::_Optional_base<WebCore::VideoConfiguration, false, false>::<unnamed>)).WebCore::VideoConfiguration::width' is used uninitialized [-Wuninitialized]
       >    46 |     MediaEncodingConfiguration result;
       >       |                                ^~~~~~
       > /build/webkitgtk-2.38.3/build/WebCore/DerivedSources/JSMediaEncodingConfiguration.cpp:46:32: warning: '*(WebCore::VideoConfiguration*)((char*)&result + offsetof(WebCore::MediaEncodingConfiguration, WebCore::MediaEncodingConfiguration::<unnamed>.WebCore::MediaConfiguration::video.std::optional<WebCore::VideoConfiguration>::<unnamed>.std::_Optional_base<WebCore::VideoConfiguration, false, false>::<unnamed>)).WebCore::VideoConfiguration::height' is used uninitialized [-Wuninitialized]
       > [3208/6272] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-3a52ce78-91.cpp.o
       > [3209/6272] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-3a52ce78-98.cpp.o
       > [3210/6272] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-3a52ce78-83.cpp.o
       > [3211/6272] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-3a52ce78-69.cpp.o
       > [3212/6272] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-3a52ce78-105.cpp.o
       > [3213/6272] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-3a52ce78-78.cpp.o
       > [3214/6272] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-3a52ce78-100.cpp.o
       > [3215/6272] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-3a52ce78-99.cpp.o
       > [3216/6272] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-3a52ce78-76.cpp.o
       > [3217/6272] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-3a52ce78-77.cpp.o
       > [3218/6272] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-3a52ce78-87.cpp.o
       > [3219/6272] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-3a52ce78-89.cpp.o
       > [3220/6272] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-3a52ce78-112.cpp.o
       > [3221/6272] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-3a52ce78-97.cpp.o
       > [3222/6272] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-3a52ce78-88.cpp.o
       > [3223/6272] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-3a52ce78-114.cpp.o
       > [3224/6272] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-3a52ce78-110.cpp.o
       > [3225/6272] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-3a52ce78-101.cpp.o
       > [3226/6272] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-3a52ce78-113.cpp.o
       > [3227/6272] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-3a52ce78-65.cpp.o
       > ninja: build stopped: subcommand failed.
       For full logs, run:
         nix log /nix/store/n078dxz6ckp8lyp3jj68x4596gmaswn1-webkitgtk-2.38.3+abi=4.0.drv
error: Cannot build '/nix/store/01rm0fkcvp42dy2mz04cnyb69c3jvlzy-bespokesynth-1.1.0.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/5jf99f0m6vh7lwryjj382iy0dkdxm9bk-bespokesynth-1.1.0