stripping (with flags -S) in  /nix/store/ayyc7ifnfp39dibz0qd4wl3hd71ccf39-aster/bin 
patching ELF executables and libraries
/nix/store/ayyc7ifnfp39dibz0qd4wl3hd71ccf39-aster/bin/aster
patching script interpreter paths