these 3 derivations will be built:
  /nix/store/w0cmqi7lwbwcr7nx53s29gyw6s4z28n6-treefmt.toml.drv
  /nix/store/hvz9z4jix9g80ry4ix49qf2ws2nnryc7-treefmt.drv
  /nix/store/2wsj9z2c4iqpk46p6i4wjrhxwdkqwwrq-nix-shell.drv