z311
Сначала copy, затем workdir, mkdir вообще выкинуть, не?
Пересобрал...
Теперь другая ошибка.
Unable to find image 'dart3:latest' locally
docker: Error response from daemon: pull access denied for dart3, repository does not exist or may require 'docker login': denied: requ
ested access to the resource is denied.