these 2 derivations will be built:
  /nix/store/b2rz9wz60s79a03mm4rz5m6qfgasl50x-mcp-remote-0.15.2.drv
  /nix/store/x3jcg9m4926rxqnfcg2w8zkxlrsxlqdk-check-mcp-remote.drv