Changelog for rust-std-bootstrap-1_23-1.23.0-lp150.1.1.x86_64.rpm :

* Mon May 14 2018 mmanu84AATToutlook.de- Add _constraints file to avoid build failure for ppc64 and ppc64le
* Sat Jan 06 2018 mmanu84AATToutlook.de- Create 1.23 bootstrap for std