these 2 derivations will be built:
  /nix/store/smz0vgak499zyj6dmakm070mdsmrb03y-cargo-vendor-dir.drv
  /nix/store/vvj2sb1za6mbvwfrwy05xxz8s6ar0g5m-citiesapp-frontend.drv
building '/nix/store/smz0vgak499zyj6dmakm070mdsmrb03y-cargo-vendor-dir.drv'
cargo-vendor-dir> structuredAttrs is enabled
building '/nix/store/vvj2sb1za6mbvwfrwy05xxz8s6ar0g5m-citiesapp-frontend.drv'
citiesapp-frontend> Running phase: unpackPhase
citiesapp-frontend> unpacking source archive /nix/store/v7a0wmqg9c1xk7md7yiz1hr25h0aqph8-0rzq9fsjin4g6wrjsq3v7wh9zswyndrz-source
citiesapp-frontend> source root is 0rzq9fsjin4g6wrjsq3v7wh9zswyndrz-source
citiesapp-frontend> Executing cargoSetupPostUnpackHook