this derivation will be built:
  /nix/store/812rnrnbzmvcp6cpn82wd8m23h1k734d-iets-classic-2.34.9.drv
warning: ignoring the client-specified setting 'store', because it is a restricted setting and you are not a trusted user
building '/nix/store/812rnrnbzmvcp6cpn82wd8m23h1k734d-iets-classic-2.34.9.drv' on farm.numtide.com:50051
iets-classic-2.34.9> bld1: building 812rnrnbzmvcp6cpn82wd8m23h1k734d-iets-classic-2.34.9.drv