fatal: Could not parse object '10969f49e161e6b1e60c4938b16fdedab4e4b674'.
From https://github.com/NASA-Tensegrity-Robotics-Toolkit/NTRTsim
 * branch            master     -> FETCH_HEAD
HEAD is now at 10969f4 Deeper ground to prevent tensegrity from accidentally falling through
10969f49e161e6b1e60c4938b16fdedab4e4b674