these 13 derivations will be built:
  /nix/store/nhg9nv3idljqc5sff1dc87rs74472shv-envoy.json.drv
  /nix/store/5llix7s1b47c2n0x4jrgqs7n792i3l99-validate-envoy-conf.drv
  /nix/store/87c9cv8mz01jp91n6vhwcqgl94pk737f-unit-envoy.service.drv
  /nix/store/ib5b3x9f3wg9rr58qhj9gs7cx9ap1pb7-system-units.drv
  /nix/store/3hkph68him44ivmgs15qh6n391mc6jg2-etc.drv
  /nix/store/6fgwlx6j1xw5bny26rgm46vcrladh0p6-activate.drv
  /nix/store/izinghfrg1gd549nab2gi23dsbadfys0-nixos-system-lb-test.drv
  /nix/store/3w5591bl2i7m34qrxi50wr8r4mlmyk9a-closure-info.drv
  /nix/store/1dcxyjk14sp2ldmwsn8bai0jbq4s5gj5-run-nixos-vm.drv
  /nix/store/i7l5dpmcgz3dzzch01y2r2gx8gh9iyfi-nixos-vm.drv
  /nix/store/r7qhdfyxi2j8f9vkpaa2fxw2arajj24j-driverConfiguration.json.drv
  /nix/store/ma145a87cxz2hq35y5fr69jif8y2mj4k-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/7ggb9zdgjhjkwidy8s6d0ysiwbxvvaph-vm-test-run-nix-grpc-farm.drv