these 2 derivations will be built:
  /nix/store/y5662i4bzy415ic14f5yvlrv2ga5sc4d-source.drv
  /nix/store/xay2k415ckfsa2bf2vidpl9ikjb1n596-simple-proxy-1.4.0.drv
this path will be fetched (0.0 KiB download, 118.4 KiB unpacked):
  /nix/store/pxp40nb96jy0sp98x65jcagyqpkdlv9c-simple-proxy-1.4.0-go-modules