these 5 derivations will be built:
  /nix/store/wfp5b5kj3037zja9va9baysjkcrzdgy0-source.drv
  /nix/store/jm27p589rjpw3wi066q2j1yq6fx54msm-ctx-2.0.0-vendor-staging.drv
  /nix/store/3jsq4ky5hv4syshn928llxg0bhnyn8ra-ctx-2.0.0-vendor.drv
  /nix/store/wwvmq0pzp1chaz8wsyn270q53s9zy7ca-ctx-2.0.0.drv
  /nix/store/4ljrrsn0xmmydfbfa5vhdgwpzxgp6mh6-check-ctx.drv