this derivation will be built:
  /nix/store/dkg1byh5i3q3riq2hm43k9vgm4fyvl1b-cargo-fmt-check.drv
building '/nix/store/dkg1byh5i3q3riq2hm43k9vgm4fyvl1b-cargo-fmt-check.drv'

upload niks3: ok