stripping (with flags -S) in  /nix/store/4d76vhd3ki0qm2kfbhlldw2mlbzncnpw-aster/bin 
patching ELF executables and libraries
/nix/store/4d76vhd3ki0qm2kfbhlldw2mlbzncnpw-aster/bin/aster
patching script interpreter paths