Please add check. module name should != reserved(existent) module (like `test`)

[dima-takoy-zz]

@Bogdanp thx for lib! It's awesome!

My issue is a enchantment request. Just for better newbie developer experience.

My story (reproduce steps).

1. create file with name test (or any other reserved name)
2. follow guide
3. nothing works, 2 day stupid repeating guide from docs.

When i just rename file, everything magically works.

I know, it may be newbie case, but dramatiq say me nothing (also with --verbose).

Also, adding broker connection info with --verbose option may be helpful too.

[Bogdanp]

Thanks! This should be fixed in v1.2.0.