these 4 derivations will be built:
  /nix/store/hj9qg3sdhixd56r7q3vmi4f921im6v75-source.drv
  /nix/store/gg5b3w2j157q9hh85f4r8fww362rgdb5-picoclaw-0.5.1-go-modules.drv
  /nix/store/kygs0my7fas1qsz4va73wc8cps9zk1xf-picoclaw-0.5.1.drv
  /nix/store/wgpqn1dk24kmk9wad0j24rz1d2mb0i8f-check-picoclaw.drv