fatal: Could not parse object 'b838a969de3852e83c867843755ba0fb4b92b051'.
From https://github.com/NASA-Tensegrity-Robotics-Toolkit/NTRTsim
 * branch            master     -> FETCH_HEAD
HEAD is now at b838a96 Notifies teardown
b838a969de3852e83c867843755ba0fb4b92b051