Umbrella project: error in compilation

[hissssst]

Problem

Umbrella app with compilation error
Project structure:

my_project
├── apps
│   ├── my_in_umbrella_project
... ...
├── mix.exs
...

Desired behaviour

Show compilation error in file

Actual behaviour

In /mix.exs :
[ElixirLS] [E] Build failed for unknown reason. See output log.

CocInfo output

## Output channel: elixir

Started ElixirLS Fork v0.3.0
Elixir version: "1.10.2 (compiled with Erlang/OTP 21)"
Erlang version: "22"
Compiling with Mix env test

== Compilation error in file lib/my_in_umbrella_project/file.ex ==
** (CompileError)  Some compilation error
    lib/my_in_umbrella_project/file.ex: (module)
    (stdlib 3.12.1) erl_eval.erl:680: :erl_eval.do_apply/6

[amiralies]

Can you make sample repo which is reproducing this?

[hissssst]

I am sorry, I can't. This happens in my working repo, and I can't make the code public