this derivation will be built:
  /nix/store/rk8j52hm5nc4f9k1pabn24p2fyw64a65-vm-test-run-pgroonga.drv
these 16 paths will be fetched (134.8 KiB download, 923.4 KiB unpacked):
  /nix/store/3b4cnx5h34a9hd5x51apxy4g82npvymn-closure-info
  /nix/store/bnzx4hx6sbgnimsz5jmf23kgqrzdvpxj-etc
  /nix/store/f1mnzq76gidf7rgajk4ssrflnvjyxy1q-etc
  /nix/store/jfi476rf2s16rd7vcyy9cx129hqyl4n0-etc
  /nix/store/0cvp12a6d8lsv2phkwb7g1ji8asdsyha-nixos-system-server-test
  /nix/store/ppchgn5wqb434fpqvr1gk3sfyw02k38r-nixos-system-server-test
  /nix/store/zpsmv9y8mfq7xxvym2yp8y4n2jasxlac-nixos-system-server-test
  /nix/store/j2hnyfflmq0wbqjnmk662kp8kwcijqmf-nixos-test-driver-pgroonga
  /nix/store/yxmdjwzalydp70aiwgr4kvjw67nrmkb5-nixos-vm
  /nix/store/sjb5q6h6myr8n0n6ka01wx2fpid95z13-run-nixos-vm
  /nix/store/2jr6x43wgw3aq3gz46vhykscikizl06f-system-units
  /nix/store/bq4j961yfpl6v4lr9ff7rh674mmf65gy-system-units
  /nix/store/r7ab5fi3c063vpql6agf45bzmz4dkm9l-system-units
  /nix/store/26raip9wpiwamnwzbblswyaa8khl3bnv-unit-postgresql.service
  /nix/store/dbif3gw3y40c7mw660higzm7y1ryzb61-unit-postgresql.service
  /nix/store/xird8j8s4hnhrzd7g97ayiszfas3m6nw-unit-postgresql.service