these 2 derivations will be built:
  /nix/store/crl7sid8lckd435xfng78djcfyjm8cfj-pdfvision-0.16.0.drv
  /nix/store/49wv495pp3grprfs8yq855dz77cwgnf0-check-pdfvision.drv
these 2 paths will be fetched (0.0 KiB download, 1.4 GiB unpacked):
  /nix/store/vc6iawz9y0pqmkqwn0n39h3gabfzjp74-pdfvision-0.16.0-npm-deps
  /nix/store/q7xg092q4kf5n6hxkq453b553vj5bzip-source