Erlang Port Broken

[Bill Tillman]

Trying to install rabbitmq:
== Compilation error in file lib/mix/tasks_server.ex ==** (CompileError) lib/mix/tasks_server.ex:6: module Agent is not loaded and could not be found    (elixir 1.10.3) expanding macro: Kernel.use/1    lib/mix/tasks_server.ex:6: Mix.TasksServer (module)gmake[2]: *** [Makefile:114: lib/mix/ebin/Elixir.Mix.beam] Error 1gmake[2]: Leaving directory '/usr/ports/lang/elixir/work/elixir-1.10.3'===> Compilation failed unexpectedly.Try to set MAKE_JOBS_UNSAFE=yes and rebuild before reporting the failure tothe maintainer.*** Error code 1
Stop.make[1]: stopped in /usr/ports/lang/elixir*** Error code 1
Stop.make: stopped in /usr/ports/net/rabbitmq