these 3 derivations will be built:
  /nix/store/lqqhglf4sx5218wwnq5gm9j6w3yh7sgc-source.drv
  /nix/store/srk107kyhzal44d183kac1cjwywd2sac-mcp-remote-0.15.0.drv
  /nix/store/xnl2dqi4vg7fmj2kr70l9z166z25n3ja-check-mcp-remote.drv