a.rb

❯ make docs
==> elixir (compile)
==> ex_doc (elixir)
bin/elixir ../ex_doc/bin/ex_doc "Elixir" "1.1.0-beta" "lib/elixir/ebin" -m "Kernel" -u "https://github.com/elixir-lang/elixir" --source-ref "62baed24a87938087352804dea51ef7de5fb7b1f"  -o doc/elixir -p http://elixir-lang.org/docs.html
** (EXIT from #PID<0.47.0>) an exception was raised:
    ** (UndefinedFunctionError) undefined function: :[email protected]/0 (module :nonode@nohost is not available)
        :[email protected]()
        lib/ex_doc/formatter/html/templates.ex:39: ExDoc.Formatter.HTML.Templates.link_id/1
        lib/ex_doc/formatter/html/templates/type_detail_template.eex:2: ExDoc.Formatter.HTML.Templates.type_detail_template/2
        lib/ex_doc/formatter/html/templates/module_template.eex:37: anonymous fn/3 in ExDoc.Formatter.HTML.Templates.module_template/7
        (elixir) lib/enum.ex:1385: Enum."-reduce/3-lists^foldl/2-0-"/3
        lib/ex_doc/formatter/html/templates/module_template.eex:37: ExDoc.Formatter.HTML.Templates.module_template/7
        lib/ex_doc/formatter/html.ex:182: ExDoc.Formatter.HTML.generate_module_page/4
        (elixir) lib/task/supervised.ex:74: Task.Supervised.do_apply/2

23:30:40.197 [error] Task #PID<0.135.0> started from #PID<0.47.0> terminating
** (UndefinedFunctionError) undefined function: :[email protected]/0 (module :nonode@nohost is not available)
    :[email protected]()
    lib/ex_doc/formatter/html/templates.ex:39: ExDoc.Formatter.HTML.Templates.link_id/1
    lib/ex_doc/formatter/html/templates/type_detail_template.eex:2: ExDoc.Formatter.HTML.Templates.type_detail_template/2
    lib/ex_doc/formatter/html/templates/module_template.eex:37: anonymous fn/3 in ExDoc.Formatter.HTML.Templates.module_template/7
    (elixir) lib/enum.ex:1385: Enum."-reduce/3-lists^foldl/2-0-"/3
    lib/ex_doc/formatter/html/templates/module_template.eex:37: ExDoc.Formatter.HTML.Templates.module_template/7
    lib/ex_doc/formatter/html.ex:182: ExDoc.Formatter.HTML.generate_module_page/4
    (elixir) lib/task/supervised.ex:74: Task.Supervised.do_apply/2
Function: #Function<8.119732950/0 in ExDoc.Formatter.HTML.generate_list/4>
    Args: []
make: *** [docs_elixir] Error 1