this derivation will be built:
  /nix/store/ymyc6ym9bv4waq40jcsbgnfibb6xcki6-nix-fast-build-2.0.0.drv
this path will be fetched (1.3 MiB download, 4.2 MiB unpacked):
  /nix/store/xcf0q6mfwc91q0zlbsd67b6x4fk5wdrj-nix-2.35.2