stripping (with flags -S) in  /nix/store/7sl5d9gjdiyys56j2lafrz246xzlb5h6-aster/bin 
patching ELF executables and libraries
/nix/store/7sl5d9gjdiyys56j2lafrz246xzlb5h6-aster/bin/aster
patching script interpreter paths