these 5 derivations will be built:
  /nix/store/1d8s5zhda63vcn5y0rcrbg4s0j7fjixb-source.drv
  /nix/store/jliq8r1wdbq8m7hxp2k4l5bpx3bfcnb1-vendor-registry.drv
  /nix/store/5sg36sb2kgqi14n82dp0ga2azkgr9xcc-vendor-cargo-deps.drv
  /nix/store/cx9j0p3lirdiikxidlcry5k9pls3dvmm-tincd-deps-0.1.0.drv
  /nix/store/8bzp8j7rgmhbjgimcrqds6qhnpy2aadh-tincd-0.1.0.drv
building '/nix/store/1d8s5zhda63vcn5y0rcrbg4s0j7fjixb-source.drv' on 'ssh-ng://customer@mac02'