dialyzer.ignore-warnings

:0: Unknown function 'Elixir.Mix.Task':run/1
:0: Unknown function 'Elixir.Mix.Task':run/2
lib/mix/tasks/generate/holidays.ex:1: Callback info about the 'Elixir.Mix.Task' behaviour is not available
lib/mix/tasks/generate/holidays.ex:9: Function run/1 has no local return
lib/mix/tasks/generate/holidays.ex:14: The call 'Elixir.RelaxYaml.Decoder':read_from_file(src@1::binary()) will never return since it differs in the 1st argument from the success typing arguments: (string())
lib/mix/tasks/test/all.ex:1: Callback info about the 'Elixir.Mix.Task' behaviour is not available
lib/mix/tasks/update.ex:1: Callback info about the 'Elixir.Mix.Task' behaviour is not available