these 3 derivations will be built:
  /nix/store/bf2fh83s8n20yyf6bvw37k7dv3ara6vy-treefmt.toml.drv
  /nix/store/8glypxk4m49zsyp2y9v39krq1hkfk18k-treefmt.drv
  /nix/store/qs6rmjmq2bpiwapj7qa62bwz1pqdzshg-treefmt-check.drv