these 2 derivations will be built:
  /nix/store/sb4v03plcqqdsn3yqqg5rsxi5ai788nr-nix-conformance.drv
  /nix/store/lqwcpqajk3xlcpzx478shx5ya6jcsxk1-nix-conformance-reference.drv
building '/nix/store/sb4v03plcqqdsn3yqqg5rsxi5ai788nr-nix-conformance.drv'
nix-conformance> structuredAttrs is enabled
building '/nix/store/lqwcpqajk3xlcpzx478shx5ya6jcsxk1-nix-conformance-reference.drv'
nix-conformance-reference> 1420 passed, 0 failed, 0 known, 0 skipped

upload niks3: ok