it appears the nightly linux build is expecting at qt library that isn’t there.
$ ./Slicer-4.11.0-2020-05-30-linux-amd64/Slicer
/tools/Slicer-4.11.0-2020-05-30-linux-amd64/bin/SlicerApp-real: error while loading shared libraries: libQt5QmlModels.so.5: cannot open shared object file: No such file or directory