these 3 derivations will be built:
  /nix/store/6pw7clqisf747vmi9zvq7i6slcvyk8di-source.drv
  /nix/store/4gim5ck60isn8fklxqa0aj958br35q9z-mcp-remote-0.16.6.drv
  /nix/store/j1rf2dc1j0brqvdvhnlmkca4ymwk9743-check-mcp-remote.drv