these 2 derivations will be built:
  /nix/store/brna4q8ba72am7fp3rjk4s9v6impkjfh-postgres-15-check-harness.drv
  /nix/store/h0zzh3r0wlcjkqfhnriwzdk9zfsqp0dz-run-check-harness-psql-15-slim.drv
this path will be fetched (18.5 KiB download, 74.9 KiB unpacked):
  /nix/store/8sq768ngfhl90glxpqsmhhh50fgmsj31-start-postgres-server-test