stripping (with flags -S) in  /nix/store/2k9a18lhk31zlhk1bk62wilvl8flx6qn-meta-build-env/bin 
strip: /nix/store/2k9a18lhk31zlhk1bk62wilvl8flx6qn-meta-build-env/bin/meta-build: File format not recognized
patching ELF executables and libraries
/nix/store/2k9a18lhk31zlhk1bk62wilvl8flx6qn-meta-build-env/bin/meta-build
not an ELF executable