these 5 derivations will be built:
  /nix/store/kfnr8a3gngg3fq09m86n9fa7mzaqm2lk-source.drv
  /nix/store/zlnnqdjv7drv1zinj7aag9r0fglpn26c-ctx-2.4.0-vendor-staging.drv
  /nix/store/vxzb5v5k9nx3759b28114m1l8sl6jz55-ctx-2.4.0-vendor.drv
  /nix/store/q248q8vf5h6kv347w3j9ggmww72m6k6m-ctx-2.4.0.drv
  /nix/store/9aic3rhbsgvppxrd57mvh9lgqfc84vhg-check-ctx.drv