fatal: Could not parse object '901c19a1987179a772e6b552d08fb423a8907ba2'.
From https://github.com/NASA-Tensegrity-Robotics-Toolkit/NTRTsim
 * branch            master     -> FETCH_HEAD
HEAD is now at 901c19a Trying to actuate MountainGoat using only the spiral muscles.
901c19a1987179a772e6b552d08fb423a8907ba2