these 2 derivations will be built:
  /nix/store/9pvsm9clfw419nhaa4mxvdj9qi8zwi8k-amp-linux-x64.drv
  /nix/store/ad5w807bk2dm7vawxbwj8vfi9inw0i4x-amp-0.0.1787428878-gebb20a.drv