these 4 derivations will be built:
  /nix/store/8czn92anghj4hnx4r9iq8ns6myk08d0d-source.drv
  /nix/store/49xhnb8ypb2fd1nhp1pfays2z54qwy07-multica-0.6.1-go-modules.drv
  /nix/store/z7sh3rnc8qx50i6bpqa7i9libgshdfr1-multica-0.6.1.drv
  /nix/store/5963npzjppx5abk9236vs5915f5vb9ba-check-multica.drv