Remove Elixir 1.9.x and 1.10.x from CI #14

Annotations

10 warnings

System.stacktrace/0 is deprecated, use __STACKTRACE__ instead

function upgrade/3 required by behaviour Plug.Conn.Adapter is not implemented (in module Plug.Adapters.Cowboy.Conn)

System.stacktrace/0 is deprecated, use __STACKTRACE__ instead

Supervisor.Spec.worker/3 is deprecated. Use the new child specifications outlined in the Supervisor module instead

Plug.Adapters.Cowboy.http/3 is deprecated. Use Plug.Cowboy.http/3 instead

Plug.Adapters.Cowboy.shutdown/1 is deprecated. Use Plug.Cowboy.shutdown/1 instead

Logger.Formatter.new/1 is undefined or private

:simple_one_for_one strategy is deprecated, please use DynamicSupervisor instead