these 3 derivations will be built:
  /nix/store/xqg4rzw479jmmym80lgbxq2pcp1jqq08-treefmt.toml.drv
  /nix/store/bhpf3hwg5c0nr7idjpfnsksighdj94cp-treefmt.drv
  /nix/store/l1kf66mcgmdrsm4jld3ndvpfbys0cqlf-nix-shell.drv