this derivation will be built:
  /nix/store/490v9cyd3bnwim5nlndyx589m1p2zcvz-vm-test-run-pgroonga.drv
these 16 paths will be fetched (134.8 KiB download, 924.2 KiB unpacked):
  /nix/store/l6vhmsibppgyvxs8w7kxlm1cli2zdwbb-closure-info
  /nix/store/1nzsbs069jhamrg0g30f9y1difkbjvnb-etc
  /nix/store/av69nfahp4v37n5wf2lz2c8l1h1pl4vm-etc
  /nix/store/ck1mp07aq8q6r1gbzrz4jqwa1fv56bnr-etc
  /nix/store/3223n0xhj7ij6j4lvmxfcc0f33js9nyi-nixos-system-server-test
  /nix/store/fwfdywrf8swz8i0gid424775v0yw7f7q-nixos-system-server-test
  /nix/store/isj4kw7g4zndxsf0nqysvlxhnh927k3w-nixos-system-server-test
  /nix/store/rv32rcndd3z9kvq77s14cwzkrlm0p8b8-nixos-test-driver-pgroonga
  /nix/store/9rv7i9l01rlaknl7rgkqmcx33vgbjcbk-nixos-vm
  /nix/store/qfb77zgr3ahssx1s4hq8swswv9i8q6f0-run-nixos-vm
  /nix/store/ajzlppigjp7g0f72ry7hqgwwy6ixcra8-system-units
  /nix/store/qym6h6l7akgqw9mqjslilydaw3w8h91q-system-units
  /nix/store/xcd545lf0f7rah2nm6is8clgb23j5cyh-system-units
  /nix/store/0yzw2iqhvka0l493iaxnhzha0ysnlydg-unit-postgresql.service
  /nix/store/gfdsakmfd4r4ay95rxln86irhc3knkvx-unit-postgresql.service
  /nix/store/m1ymg4pl0k7c5gh8m6p6hmqm4lkysxim-unit-postgresql.service