these 3 derivations will be built:
  /nix/store/j340phk74qhrvkhwafcq5bw65dlgmfrr-source.drv
  /nix/store/z9dans5q6bq3hnkyg4bvq3zs81k33x7i-gno-2.8.2.drv
  /nix/store/lj2fksj4qccfphd0gb4blabdsd8vlh3l-check-gno.drv