fatal: Could not parse object 'aa8f7f6cdd597093ec6412c86bb20caebf9ee051'.
From https://github.com/NASA-Tensegrity-Robotics-Toolkit/NTRTsim
 * branch            master     -> FETCH_HEAD
HEAD is now at aa8f7f6 Disabled tetraspine test.
aa8f7f6cdd597093ec6412c86bb20caebf9ee051