Changelog for rustc-bootstrap-1_21-1.21.0-1.1.x86_64.rpm :
Wed May 23 14:00:00 2018 mmanu84AATToutlook.de
- Add _constraints file to avoid build failure for ppc64 and ppc64le

Fri Oct 20 14:00:00 2017 luke.nukem.jonesAATTgmail.com
- Create 1.21 bootstrap