error:
       … while evaluating the 'name' attribute of a derivation

       … while evaluating a branch condition
         at «github:nixos/nixpkgs/318b0ed98597effcaecad6f1105b03cde484403f?narHash=sha256-V1oLmz4vUGA73tMS1xq2L4I7FbH0NQt68vPiE%2BZMpFc%3D»/lib/strings.nix:2903:5:
         2902|     # First detect the common case of already valid strings, to speed those up
         2903|     if stringLength string <= 207 && okRegex string != null then
             |     ^
         2904|       unsafeDiscardStringContext string

       … in the left operand of the AND (&&) operator
         at «github:nixos/nixpkgs/318b0ed98597effcaecad6f1105b03cde484403f?narHash=sha256-V1oLmz4vUGA73tMS1xq2L4I7FbH0NQt68vPiE%2BZMpFc%3D»/lib/strings.nix:2903:35:
         2902|     # First detect the common case of already valid strings, to speed those up
         2903|     if stringLength string <= 207 && okRegex string != null then
             |                                   ^
         2904|       unsafeDiscardStringContext string

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error: Cannot build '/nix/store/wdjprsdly0zr7zwnv4mhk1wxadh7p6c0-zon2json.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/zwhy5whsmrnfhrr397g9s5yi1bmg560b-zon2json