v0idpwn/umbrella_bug

Reproduce bug with parallel dependency compilation + umbrella + env dependency

To reproduce the bug:

MIX_OS_DEPS_COMPILE_PARTITION_COUNT=2 MIX_DEBUG=1 mix deps.compile

Running

MIX_OS_DEPS_COMPILE_PARTITION_COUNT=2 MIX_DEBUG=1 mix compile

Doesn't trigger it