Bug#1134471: RFS: ruby-chef-utils/16.12.3-3.1 [RC] -- Basic utility functions for Core Chef Infra development

[Bastian Germann]

You cannot Build-Depend on older rake versions than the one in unstable.
You simply cannot fix any bug in unstable by constraining Build-Depends
versions. So most probably you want to fix a bug in a different package
to resolve #1123467.