rebar3 eunit in docker fails

[c-bik]

cover_tests: load_test...[0.120 s] ok
cover_tests: slave_reuse_test...[ERROR] REVISIT dpi:135 boot file not found!!
=ERROR REPORT==== 28-Apr-2020::14:11:19.564411 ===
global: <0.154.0> registered under several names: [{dpi,'[email protected]','[email protected]',#Ref<0.1343750239.56360961.202328>},{dpi,'[email protected]','[email protected]',#Ref<0.1343750239.56360961.201929>}]

*failed*
in function cover_tests:'-slave_reuse_test/0-fun-0-'/1 (/oranif/test/cover_tests.erl, line 1848)
in call from cover_tests:slave_reuse_test/0 (/oranif/test/cover_tests.erl, line 1848)
in call from eunit_test:'-mf_wrapper/2-fun-0-'/2 (eunit_test.erl, line 273)
in call from eunit_test:run_testfun/1 (eunit_test.erl, line 71)
in call from eunit_proc:run_test/1 (eunit_proc.erl, line 510)
in call from eunit_proc:with_timeout/3 (eunit_proc.erl, line 335)
in call from eunit_proc:handle_test/2 (eunit_proc.erl, line 493)
in call from eunit_proc:tests_inorder/3 (eunit_proc.erl, line 435)
**error:{assertEqual,[{module,cover_tests},
              {line,1848},
              {expression,"nodes ( hidden )"},
              {expected,[{error,"failed to register process globally"}]},
              {value,['[email protected]']}]}
  output:<<"">>

[done in 31.910 s]
module 'odpi_ct'
=======================================================
  Failed: 1.  Skipped: 0.  Passed: 7.
One or more tests were cancelled.

[KarlKeiser]

This bug occurs when:

• $HOME is set to a place outside of the container
• There are multiple admin accounts on the windows host

The reason why that happens is because erlang makes a cookie that it needs to set to be only accessible by the user (permissions 600). However, because of how permissions work on the windows host, it can't set those permissions and then later fails here.

It also isn't possible to use chmod to fix the cookie's permissions.