these 3 derivations will be built:
  /nix/store/f3xwnq6dxh5frmnpkmbxzwhvibvp7wr3-treefmt.toml.drv
  /nix/store/kdl38dzm0s11fzsfgw655gmrzb13x08m-treefmt.drv
  /nix/store/wp58r3pxah28fzcjy92762c6jay1ph69-treefmt-check.drv
this path will be fetched (6.1 MiB download, 18.5 MiB unpacked):
  /nix/store/jhqnnd19770i5741pmdnxylvzk2plqpq-rustfmt-1.95.0