this derivation will be built:
  /nix/store/gwnlfllbkw7gplyjcbzldjw8w8g4digd-fastly-purge-lint-0.0.1.drv
this path will be fetched (1.1 MiB download, 5.8 MiB unpacked):
  /nix/store/7zznn4h6mldcwa2cq8csqv34xnlnx39z-composer-2.10.3