these 12 derivations will be built:
  /nix/store/0ak74wq4if1vbrqrg7zwp0an7c647pr1-nixos-system-server-test.drv
  /nix/store/nf8blgyjd54nf2f2rc7f8blwkh3m2mpn-unit-postgresql-migrate.service.drv
  /nix/store/rp4iqp88925vd4i2066fmh22y60il7mq-system-units.drv
  /nix/store/r5dwb4ppz6w1k5d56xb2d13r28hk876x-etc.drv
  /nix/store/2xbmr9fsnqfyd6022w54wpqmkijxzhf0-activate.drv
  /nix/store/r7wvq1c04rhzjqcpwkh8mg3x78fikhcg-nixos-system-server-test.drv
  /nix/store/pmzywj0qwdg98dyd7mznh9h9c6mlr3s3-nixos-system-server-test.drv
  /nix/store/x93gr9kdzz6n10m0slbgb4581m0hp48h-closure-info.drv
  /nix/store/12fmg0a77xi6xwwjz4yf0g5s8v2v8y6w-run-nixos-vm.drv
  /nix/store/chh6v4mbxndgl8z4ajxpdab33nplmb3n-nixos-vm.drv
  /nix/store/3wdg0vqkysmgzdrdr19i3zhd73p5gfpk-nixos-test-driver-pgmq.drv
  /nix/store/wj4cwkpnjdwzc94hr5xrgb59m0ibpjn2-vm-test-run-pgmq.drv
building '/nix/store/0ak74wq4if1vbrqrg7zwp0an7c647pr1-nixos-system-server-test.drv' on 'ssh-ng://nixbot-remote-build@78.232.36.247'
building '/nix/store/nf8blgyjd54nf2f2rc7f8blwkh3m2mpn-unit-postgresql-migrate.service.drv' on 'ssh-ng://nixbot-remote-build@78.232.36.247'
building '/nix/store/0ak74wq4if1vbrqrg7zwp0an7c647pr1-nixos-system-server-test.drv'
building '/nix/store/nf8blgyjd54nf2f2rc7f8blwkh3m2mpn-unit-postgresql-migrate.service.drv'
building '/nix/store/3wdg0vqkysmgzdrdr19i3zhd73p5gfpk-nixos-test-driver-pgmq.drv' on 'ssh-ng://nixbot-remote-build@78.232.36.247'