QtCore is used at run time in 214 crates (of which 2 optionally). It is a direct run-time dependency in 15 crates.

Depender (with downloads and own rev deps) QtCore version
470 14 qt_gui ^0.5.0
330 197 bitcoin-imports ^0.5.0
120 4 qt_widgets ^0.5.0
qt_qml ^0.5.0
1 qt_3d_logic ^0.5.0
1 qt_3d_render ^0.5.0
1 qt_3d_input ^0.5.0
qt_charts ^0.5.0
qt_3d_extras ^0.5.0
qt-cb ^0.5.0
qt_ui_tools ^0.5.0
1 qt_core_custom_events ^0.5.0-alpha.2
1 jiao-qt ^0.5.0
4 qt_3d_core ^0.5.0
1 scintilla-sys optional ^0.5