Changelog for rust-std-bootstrap-1_25-1.25.0-1.1.x86_64.rpm :

* Mon May 14 2018 mmanu84AATToutlook.de- Add _constraints file to avoid build failure for ppc64 and ppc64le
* Fri Apr 13 2018 mmanu84AATToutlook.de- Enable build for riscv64
* Thu Mar 29 2018 mmanu84AATToutlook.de- Create 1.25 bootstrap for std