The core-foundation crate maintainers generally agree with migrating to the objc2 crates; see servo/core-foundation-rs#729.
Before that you may want to cut another breaking version to update to the latest core-graphics-types (it looks like a bug that core-graphics-types didn't get bumped to 0.2.0 when core-graphics was bumped to 0.25; sorry that may have been my mistake).
The core-foundation crate maintainers generally agree with migrating to the objc2 crates; see servo/core-foundation-rs#729.
Before that you may want to cut another breaking version to update to the latest core-graphics-types (it looks like a bug that core-graphics-types didn't get bumped to 0.2.0 when core-graphics was bumped to 0.25; sorry that may have been my mistake).