these 5 derivations will be built:
  /nix/store/8rh9yxf6k6xbh6y1wvsjhc1wqjqxi087-source.drv
  /nix/store/ilwwf2ka2gls3d7px2j3z3sk3kk6y9zg-ctx-2.0.3-vendor-staging.drv
  /nix/store/n8s9jw4npk6c0zqwr58n32234f5dijqi-ctx-2.0.3-vendor.drv
  /nix/store/lmikvw3kh6jq8y47aclm9baf67k35inw-ctx-2.0.3.drv
  /nix/store/605crl4yyq4ib1rlxkhi9skcw3gs907j-check-ctx.drv