Slow composer update + Segmentation fault (core dumped) at the end. What to do?

Question

Composer

I will say right away, I have a normal Internet (download ~ 40Mbps)
A project on Laravel, on average, the composer updates it for about 2 hours, sometimes more, at the end a Segmentation fault (core dumped) error occurs .
I looked in Google, tried to make php artisan clear-compiled - caused an error about not finding the class, composer dump-autoload - the same error Segmentation fault (core dumped) , cleared the composer cache and deleted composer.lock - the error remained.
Well, about the speed - what can be checked?

Answer 1

Update the composer self-update composer, yesterday I also had troubles until I updated it.