Intermittent error with timex

[mcgaffin]

There must have been some circle output that had an invalid time, which resulted in:

** (FunctionClauseError) no function clause matching in Timex.Parse.DateTime.Parser.parse!/3

    The following arguments were given to Timex.Parse.DateTime.Parser.parse!/3:

        # 1
        nil

        # 2
        "{ISO:Extended}"

        # 3
        Timex.Parse.DateTime.Tokenizers.Default

    (timex) lib/parse/datetime/parser.ex:77: Timex.Parse.DateTime.Parser.parse!/3
    (circli) lib/circli/circle_api.ex:52: Circli.CircleApi.first_queued_build/2
    (elixir) lib/enum.ex:1940: Enum."-reduce/3-lists^foldl/2-0-"/3
    (circli) lib/circli/circle_api.ex:64: Circli.CircleApi.generate_build_results/1
    (circli) lib/circli/circle_api.ex:96: Circli.CircleApi.print_build_summary/1
    (elixir) lib/kernel/cli.ex:105: anonymous fn/3 in Kernel.CLI.exec_fun/2

Apparently, sometimes there is no time provided for queued_at or completed_at. This might be hard to reproduce, although I suppose it's right at the moment that a build is first listed by the API.

The next time I ran circli, it was fine.