these 3 derivations will be built:
  /nix/store/2ph81hpgc22xq9pv7nrkmm240sy16ddz-start-postgres-server-test.drv
  /nix/store/dzfs06hbw3gnb5y3zx3fm687i7cs9279-postgres-15-check-harness.drv
  /nix/store/gfv5lrv680x0n8j6fplsb157i1b99nj0-run-check-harness-psql-15-slim.drv