these 2 derivations will be built:
  /nix/store/hgn2axrm0ph0784742n2fqhpadiyl6li-cargo-vendor-dir.drv
  /nix/store/rnmwlyi3j56s32n529xlv72m95lrc7px-citiesapp-frontend.drv
building '/nix/store/hgn2axrm0ph0784742n2fqhpadiyl6li-cargo-vendor-dir.drv'
cargo-vendor-dir> structuredAttrs is enabled
building '/nix/store/rnmwlyi3j56s32n529xlv72m95lrc7px-citiesapp-frontend.drv'
citiesapp-frontend> Running phase: unpackPhase
citiesapp-frontend> unpacking source archive /nix/store/xm4v7lkkm9b787m43czqpirvshafir3n-1j2fsbmk261zgrs26bdh8j53c7dg36qx-source
citiesapp-frontend> source root is 1j2fsbmk261zgrs26bdh8j53c7dg36qx-source
citiesapp-frontend> Executing cargoSetupPostUnpackHook