Recently rustic was changed to use rust-mode as dependency. Some new code in the former rustic.el was not moved to rust-mode.e(#407). We should merge those improvements:
[x] improved regexes in rustic-top-item-beg-re
[x] include keyword existential in rust-keywords
[ ] performance improvements for rust-syntax-propertize functions (@phillord would be great if you could take a look)
Recently rustic was changed to use rust-mode as dependency. Some new code in the former rustic.el was not moved to rust-mode.e(#407). We should merge those improvements: