this derivation will be built:
  /nix/store/vxxx4brw1vsy4ppj1qfdfhgzspw91ij1-treefmt.toml.drv
this path will be fetched (7.3 MiB download, 28.6 MiB unpacked):
  /nix/store/npynbf0vaxnpysknivscqx6llf79522i-oxfmt-0.68.0