stripping (with flags -S) in /nix/store/dqw4wrs3a6k59rrnns7fxqdpcaxqggc7-nix-build/bin/...-nix-build/bin
patching ELF executables and libraries
/nix/store/dqw4wrs3a6k59rrnns7fxqdpcaxqggc7-nix-build/bin/patchelf/...-nix-build/bin/patchelf