these 3 derivations will be built:
  /nix/store/qr40wvybmd6ffs9c3cqdagn89w7sz6vc-source.drv
  /nix/store/07idhdnbrdyancpzm1ay33h2pgyrwlbz-agentty-0.9.25.drv
  /nix/store/sn2xlhj7x4ym3lcyh9q3spfqq19lcxm7-check-agentty.drv