Changelog for rustc-bootstrap-1_19-1.19.0-1.1.x86_64.rpm :

* Wed May 23 2018 mmanu84AATToutlook.de- Add _constraints file to avoid build failure for ppc64 and ppc64le
* Tue Jan 09 2018 mmanu84AATToutlook.de- Add armv6 support
* Wed Sep 20 2017 opensuseAATTdstoecker.de- Create 1.19 bootstrap