Combined with our --Deny Warnings lead our CI to spontaneous break. Adding feature gates to generated code doesn't seem particularly smart to me, since you can in/exclude it with options in the build script. Additionally, it now means the cargo toml of the crate using mavlink-bindgen has to be updated to make use of the new feature anyway, as the dependencies are not automatically used (e.g. by reexporting them in mavlink-bindgen).
Please be more careful with minor changes, a lot of things can be breaking.