these 3 derivations will be built:
  /nix/store/lmibw7m4w5pqhvnl2vg0qinl4vd8vcyr-start-postgres-server-test.drv
  /nix/store/fk6q1fvv0x6zmqxysa5rzd1n8yd3l31q-postgres-15-check-harness.drv
  /nix/store/qv0vbw2wa6nzmaghal4dvjq28dm25h2v-run-check-harness-psql-15-slim.drv