stripping (with flags -S) in  /nix/store/mq5pzbm42sfsa64ma246fbyw5wiva6va-meta-build-env/bin 
strip: /nix/store/mq5pzbm42sfsa64ma246fbyw5wiva6va-meta-build-env/bin/meta-build: File format not recognized
patching ELF executables and libraries
/nix/store/mq5pzbm42sfsa64ma246fbyw5wiva6va-meta-build-env/bin/meta-build
not an ELF executable