these 2 derivations will be built:
  /nix/store/2szajzgj21ill523s1d2nxiyyxrz69cp-flake-inputs.drv
  /nix/store/9fmm7mb7dwmmqcw17issbkpdzlx2qr4r-check-flake-inputs.drv
building '/nix/store/2szajzgj21ill523s1d2nxiyyxrz69cp-flake-inputs.drv'
building '/nix/store/9fmm7mb7dwmmqcw17issbkpdzlx2qr4r-check-flake-inputs.drv'

upload niks3: ok