rustler_codegen 0.18.0

This project contains 3 outdated main dependencies.

Crate `rustler_codegen`

Dependencies

(3 total, 3 outdated)

Crate	Required	Latest	Status
heck	`^0.3`	`0.5.0`	out of date
quote	`^0.3.15`	`1.0.36`	out of date
syn	`^0.11.9`	`2.0.60`	out of date