these 4 derivations will be built:
  /nix/store/2b2c3sg6gylbj8diy5a0bdq6a9azqw6a-source.drv
  /nix/store/0wixhh8ggcb82bq275lrw25qa0c23mf4-mardi-gras-0.33.0-go-modules.drv
  /nix/store/25bfz9c4cibpiy5km1hwbb4ghwj0wwvg-mardi-gras-0.33.0.drv
  /nix/store/k6c4pvszap8gx61wkdqqxkhfxzxddqss-check-mardi-gras.drv