these 5 derivations will be built:
  /nix/store/yr7ifjgs3pk9drdsdzbspjfdk2wnq9mw-source.drv
  /nix/store/1yfscvzn5i7kxw87bkh96yyz6wjdgicd-ctx-2.4.1-vendor-staging.drv
  /nix/store/473j9an9gm5376in7kc7y449hhx47f09-ctx-2.4.1-vendor.drv
  /nix/store/wmm98nq2hfwagg19zw7r0r192lzbpa1c-ctx-2.4.1.drv
  /nix/store/4i37adxlqsjp414yf9xbir9nj2bgxdjl-check-ctx.drv