stripping (with flags -S) in  /nix/store/7pqm3fjhd58bxxd6jblb9amcsf12gh7j-aster/bin 
patching ELF executables and libraries
/nix/store/7pqm3fjhd58bxxd6jblb9amcsf12gh7j-aster/bin/aster
patching script interpreter paths