tst_qqmlbinding::delayed fails in Ubuntu 20.04

agent:2020/05/22 09:20:14 build.go:253: QDEBUG : tst_qqmlbinding::delayed() [     0.285 D] qt.text.font.match TestNamespace::match - QFontDatabase::match
agent:2020/05/22 09:20:14 build.go:253:   request:
agent:2020/05/22 09:20:14 build.go:253:     family: Ubuntu [-- any --], script: 2
agent:2020/05/22 09:20:14 build.go:253:     weight: 50, style: 0
agent:2020/05/22 09:20:14 build.go:253:     stretch: 0
agent:2020/05/22 09:20:14 build.go:253:     pixelSize: 15
agent:2020/05/22 09:20:14 build.go:253:     pitch: *
agent:2020/05/22 09:20:14 build.go:253: QDEBUG : tst_qqmlbinding::delayed() [     0.285 D] qt.text.font.match TestNamespace::bestFoundry -   REMARK: looking for best foundry for family 'Ubuntu' [1]
agent:2020/05/22 09:20:14 build.go:253: QDEBUG : tst_qqmlbinding::delayed() [     0.285 D] qt.text.font.match TestNamespace::bestFoundry -           looking for matching style in foundry 'DAMA' 9
agent:2020/05/22 09:20:14 build.go:253: QDEBUG : tst_qqmlbinding::delayed() [     0.285 D] qt.text.font.match TestNamespace::bestStyle -           best style has distance 0x0
agent:2020/05/22 09:20:14 build.go:253: QDEBUG : tst_qqmlbinding::delayed() [     0.285 D] qt.text.font.match TestNamespace::bestFoundry -           found smoothly scalable font (15 pixels)
agent:2020/05/22 09:20:14 build.go:253: QDEBUG : tst_qqmlbinding::delayed() [     0.286 D] qt.text.font.match TestNamespace::bestFoundry -           found a match: score 0 best score so far ffffffff
agent:2020/05/22 09:20:14 build.go:253: FAIL!  : tst_qqmlbinding::delayed() Compared values are not the same
agent:2020/05/22 09:20:14 build.go:253:    Actual   (item->property("changeCount").toInt()): 1
agent:2020/05/22 09:20:14 build.go:253:    Expected (2)                                    : 2
agent:2020/05/22 09:20:14 build.go:253:    Loc: [tst_qqmlbinding.cpp(363)]