stripping (with flags -S) in  /nix/store/7gngfj68n40y0y8qr9hfmxd8icfi3rdw-aster/bin 
patching ELF executables and libraries
/nix/store/7gngfj68n40y0y8qr9hfmxd8icfi3rdw-aster/bin/aster
patching script interpreter paths