don't know how to build these paths:
  /nix/store/ia9a77i9vp81gcnxjgwg9fjmmzb1l51q-iets-0.2.0.drv
warning: ignoring the client-specified setting 'store', because it is a restricted setting and you are not a trusted user
building '/nix/store/ia9a77i9vp81gcnxjgwg9fjmmzb1l51q-iets-0.2.0.drv' on farm.numtide.com:50051
iets-0.2.0> bld1: building ia9a77i9vp81gcnxjgwg9fjmmzb1l51q-iets-0.2.0.drv