qtwebview doesn't compile with -no-gui

agent:2019/05/09 06:32:12 build.go:534: Executing instruction 27 of 29 - ExecuteCommand
agent:2019/05/09 06:32:12 build.go:569: [make]  18000
agent:2019/05/09 06:32:12 build.go:197: cd src/ && ( test -e Makefile || /home/qt/work/install/bin/qmake -o Makefile /home/qt/work/qt/qtwebview/src/src.pro INSTALL_PREFIX=/home/qt/work/install ) && make -f Makefile 
agent:2019/05/09 06:32:12 build.go:197: make[1]: Entering directory '/home/qt/work/qt/qtwebview/src'
agent:2019/05/09 06:32:12 build.go:197: cd webview/ && ( test -e Makefile || /home/qt/work/install/bin/qmake -o Makefile /home/qt/work/qt/qtwebview/src/webview/webview.pro INSTALL_PREFIX=/home/qt/work/install ) && make -f Makefile 
agent:2019/05/09 06:32:12 build.go:197: Project MESSAGE: perl -w /home/qt/work/install/bin/syncqt.pl -check-includes -module QtWebView -version 5.12.3 -outdir /home/qt/work/qt/qtwebview -builddir /home/qt/work/qt/qtwebview /home/qt/work/qt/qtwebview
agent:2019/05/09 06:32:12 build.go:197: <srcbase> = /home/qt/work/qt/qtwebview 
agent:2019/05/09 06:32:12 build.go:197: <bldbase> = /home/qt/work/qt/qtwebview 
agent:2019/05/09 06:32:12 build.go:197: <outbase> = /home/qt/work/qt/qtwebview 
agent:2019/05/09 06:32:12 build.go:197: QtWebView: created fwd-include header(s) for <srcbase>/src/webview/ { qabstractwebview_p.h (1), qnativeviewcontroller_p.h (1), qquickviewcontroller_p.h (1), qquickwebview_p.h (1), qquickwebviewloadrequest_p.h (1), qtwebviewfunctions.h (1), qwebview_global.h (1), qwebview_p.h (1), qwebviewfactory_p.h (1), qwebviewinterface_p.h (1), qwebviewloadrequest_p.h (1), qwebviewplugin_p.h (1) }
agent:2019/05/09 06:32:12 build.go:197: QtWebView: created version header
agent:2019/05/09 06:32:12 build.go:197: QtWebView: created master header
agent:2019/05/09 06:32:12 build.go:197: QtWebView: created headers.pri file
agent:2019/05/09 06:32:12 build.go:197: Project ERROR: Unknown module(s) in QT: gui