this derivation will be built:
  /nix/store/wd2hsprksj3fadzmlsn1yv9566zrm96h-nix-shell.drv
this path will be fetched (167.2 MiB download, 531.7 MiB unpacked):
  /nix/store/phwbwbavr3ma1cb6bn7am37nfr74a0kk-rustfs-1.0.0