this derivation will be built:
  /nix/store/7502j03z5m872mskhg5zma9735gx505b-run-check-harness-psql-15-slim.drv
these 2 paths will be fetched (23.2 KiB download, 91.9 KiB unpacked):
  /nix/store/ldmwas70ii13p325khx959xdzk66lz2h-postgres-15-check-harness
  /nix/store/hycas30fqhy0b54kavjpjfiq4qgjzz8q-start-postgres-server-test