these 10 derivations will be built:
  /nix/store/lr88c65dzcqx7f2db13ss54irkrcxbp0-system-units.drv
  /nix/store/179m3fykv0x66xnmayzqk6xwgffzvpai-etc.drv
  /nix/store/q7agzrdcn2sfjng6lvrgm210b3k5xmrv-activate.drv
  /nix/store/hgjk85zq119y172i1xnlj7943hb3jf2s-nixos-system-server-test.drv
  /nix/store/k8rscpfanc7wqgvbjk3lrzpb4law0498-closure-info.drv
  /nix/store/x2hql9z2wmxbkx2bzin9sh8ivs9jbsgc-run-nixos-vm.drv
  /nix/store/ykl8y7wmb6cza978ldil3rxg55flxr22-nixos-vm.drv
  /nix/store/kf90x5v94abqxdh2l4bqyd6bncd5p4mi-driverConfiguration.json.drv
  /nix/store/jjqbxrm8kyi11299hqvfspjm7lcccibh-nixos-test-driver-nixos-test-read-proxy.drv
  /nix/store/90hh4fy6v1r1wx46sr7jw84f2x8q226p-vm-test-run-nixos-test-read-proxy.drv