Fix segfault
Fix segfault

in Signal temporary parameters were captured in a lambda

lanice/libzeug,mjendruk/libzeug,p-otto/libzeug,p-otto/libzeug,cginternals/libzeug,lanice/libzeug,p-otto/libzeug,j-o/libzeug,mjendruk/libzeug,lanice/libzeug,hpi-r2d2/libzeug,lanice/libzeug,kateyy/libzeug,cginternals/libzeug,j-o/libzeug,mjendruk/libzeug,j-o/libzeug,kateyy/libzeug,hpi-r2d2/libzeug,simonkrogmann/libzeug,cginternals/libzeug,simonkrogmann/libzeug,cginternals/libzeug,j-o/libzeug,kateyy/libzeug