these 2 derivations will be built:
  /nix/store/jyvd00c1pc4mam64c1rydfb49fb8nzmb-flake-inputs.drv
  /nix/store/732bajy52bfak5xwcgw03s3gzd2c924a-check-flake-inputs.drv
building '/nix/store/jyvd00c1pc4mam64c1rydfb49fb8nzmb-flake-inputs.drv'
building '/nix/store/732bajy52bfak5xwcgw03s3gzd2c924a-check-flake-inputs.drv'

upload niks3: ok