this derivation will be built:
  /nix/store/v5x2sfq2sbq9arsl50kqj4z71hxaxczy-treefmt.toml.drv
these 5 paths will be fetched (63.4 MiB download, 225.1 MiB unpacked):
  /nix/store/qr3gvpv41xil5yxaafslzpa6hl5snck1-ocaml5.5.0-ocaml-version-4.1.4
  /nix/store/4mrxxs2ncx94ida7qa4jv79c79243y38-ocaml5.5.0-ocamlformat-0.29.0
  /nix/store/2qcm2bsgiczydnmxa1cv2zssy456bf1w-ocaml5.5.0-ocamlformat-lib-0.29.0
  /nix/store/m6zlfk1pai4wlnysvp905b2igpv9ymjs-ocaml5.5.0-uucp-18.0.0
  /nix/store/yd75fiszfk3y9pf7c7fwg0j5gck6n6b7-ocaml5.5.0-uuseg-18.0.0
building '/nix/store/v5x2sfq2sbq9arsl50kqj4z71hxaxczy-treefmt.toml.drv'
treefmt.toml> structuredAttrs is enabled

upload niks3: ok