Makefile.dirs:52: warning: $v: non-POSIX variable name
src/testlib/Makefile.am:5:   'Makefile.dirs' included from here
[43/45] Linking target pcscd
checking for stdlib.h... yes
  CC       sharedobjs/btf_iter.o
substituteStream() in derivation libidn2-2.3.8: WARNING: '--replace' is deprecated, use --replace-{fail,warn,quiet}. (file '/nix/store/91mx2va3sx1xbvjcxv1cm17gbh9a9dz2-libidn2-2.3.8-dev/nix-support/propagated-build-inputs')
copying path '/nix/store/5f9q1vl32cf87jq539bl88p16wqnm0jq-gobject-introspection-1.86.0-dev' from 'http://eval03.ofborg.org'...
copying path '/nix/store/3jcqjj3z8bsp8knydxlqpp6wy5glkxjs-gd-2.3.3-dev' from 'http://eval03.ofborg.org'...
copying path '/nix/store/yrvjzsjy88msry5mvz3vsskvpxpfny4h-xmlto-0.0.29' from 'http://eval03.ofborg.org'...
error: Nix daemon disconnected unexpectedly (maybe it crashed?)