this derivation will be built:
  /nix/store/2jhvs8liymd97ba8wwz7i6mrfkyx655b-fastly-purge-lint-0.0.1.drv
this path will be fetched (1.1 MiB download, 5.9 MiB unpacked):
  /nix/store/a3v8azry7aiim7alsili1aplcmdk5cp7-composer-2.11.1