[Bug] make build doesn't work properly in version 0.6.0

[qkrwnsgh1288]

Describe the bug
in v0.5.10, make build worked fine. but today in v0.6.0, make build doesn't work properly.

To Reproduce
Steps to reproduce the behavior:

1. Run 'make build'
2. See error

$ make build
git submodule update --init --recursive
Submodule path 'extern/filecoin-ffi': checked out '40569104603407c999d6c9e4c3f1228cbd4d0e5c'
fatal: reference is not a tree: ef5dba45b810d7090e029167cc66911ef8c42a07
Unable to checkout 'ef5dba45b810d7090e029167cc66911ef8c42a07' in submodule path 'extern/test-vectors'
Makefile:48: recipe for target 'build/.update-modules' failed
make: *** [build/.update-modules] Error 1

Version (run lotus version):
commit 60cae87

Additional context
and in v0.5.10, make clean worked fine without cargo, rust. but in v0.6.0, make clean doesn't work properly without cargo, rust.
In my specific server, cargo and rust are not installed. but It worked fine. but in v0.6.0, these libraries are required.

[arajasek]

Thanks for the issue! Temp fixed this by holding that commit in a branch, real fix is in #3645.