these 13 derivations will be built:
  /nix/store/rnlrv1mafpwr0id5n5sy7vir8nvpifns-postgresql-migrate.drv
  /nix/store/3ajawim31d13n25vmzjfz7swspk87llf-unit-postgresql-migrate.service.drv
  /nix/store/j91nfi9v3khdr0cyd387si3k9xzga2wk-unit-postgresql.service.drv
  /nix/store/pzs57y099jc712jmpd1xpqks5rqp7zps-system-units.drv
  /nix/store/i8q2cnd82virpza1ndyfp5rpgcbm8rpy-etc.drv
  /nix/store/nx7qgcg0mla5ihhhgrnzms0mrqkb7lmx-activate.drv
  /nix/store/pqprk50b1rrldagj498a72glg8qkjz4j-nixos-system-server-test.drv
  /nix/store/802snbf5dx7jh7i6nflyx8wx4i00rzkr-nixos-system-server-test.drv
  /nix/store/5pwkc41snqi6ykcfj7c9ajp3cks9fqcf-closure-info.drv
  /nix/store/swy8jlspardprk17ip77dc5l6wlq7lfc-run-nixos-vm.drv
  /nix/store/9xxhb19qc1psym17fy13j5ngksmcivqc-nixos-vm.drv
  /nix/store/v2m6bkbnmqgsb0dk500rkgnps4ph1da9-nixos-test-driver-amcheck-upgrade.drv
  /nix/store/8dnrkx11gwdd1qxpahl0wmzpka41x2li-vm-test-run-amcheck-upgrade.drv