Para openSUSE Tumbleweed execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:nukeddd:JetbrainsIDE/openSUSE_Tumbleweed/home:nukeddd:JetbrainsIDE.repo
zypper refresh
zypper install rustrover
Para 15.7 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:nukeddd:JetbrainsIDE/15.7/home:nukeddd:JetbrainsIDE.repo
zypper refresh
zypper install rustrover
Para 15.6 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:nukeddd:JetbrainsIDE/15.6/home:nukeddd:JetbrainsIDE.repo
zypper refresh
zypper install rustrover