DateTime::__set_state() argument changing?

Due to a recent change in the Carbon PHP library, I'm now getting this error, only when testing on PHP Nightly: *Declaration of Carbon\Carbon::__set_state(array $state) should be compatible with DateTime::__set_state($array)* Is the argument type hinting being removed on PHP 7.3? You can see them all passing on Travis, except for Nightly: https://travis-ci.org/antonioribeiro/ia-collection Antonio Carlos Ribeiro acr@antoniocarlosribeiro.com (+55) 21-9-8088-2233 (celular TIM) (+55) 21-2556-3164 (fixo residencial) skype: antoniocarlosribeiro _______________ *I must say I find television very educational. The minute somebody turns it on, I go to the library and read a good book.** (* *Devo dizer que acho televisão muito educativo. Quando alguém a liga, vou à biblioteca e leio um bom livro.) (Groucho Marx)*