"Type" and "Function" definitions not being generated

I just generated a docset on my system (twice to be sure) and I can't see any "Type" or "Function" entries in the search index. It's documenting 1977 packages/constants/variables, but never any types or functions. I can see types and functions exposed on Package pages when I browse the generated docset.

Execution Environment

Go version: go1.10.4 linux/amd64 (from go version)

OS information:

                                       user@hostname
 MMMMMMMMMMMMMMMMMMMMMMMMMmds+.        OS: Mint 18.3 sylvia
 MMm----::-://////////////oymNMd+`     Kernel: x86_64 Linux 4.15.0-48-generic
 MMd      /++                -sNMd:    Uptime: 31d 18h 52m
 MMNso/`  dMM    `.::-. .-::.` .hMN:   Packages: 3344
 ddddMMh  dMM   :hNMNMNhNMNMNh: `NMm   Shell: zsh 5.1.1
     NMm  dMM  .NMN/-+MMM+-/NMN` dMM   Resolution: 6398x1440
     NMm  dMM  -MMm  `MMM   dMM. dMM   DE: Cinnamon 3.6.7
     NMm  dMM  -MMm  `MMM   dMM. dMM   WM: Muffin
     NMm  dMM  .mmd  `mmm   yMM. dMM   WM Theme: Linux Mint (Mint-X)
     NMm  dMM`  ..`   ...   ydm. dMM   GTK Theme: Mint-X [GTK2/3]
     hMM- +MMd/-------...-:sdds  dMM   Icon Theme: Mint-X-Grey
     -NMm- :hNMNNNmdddddddddy/`  dMM   Font: Noto Sans 9
      -dMNs-``-::::-------.``    dMM   CPU: Intel Core i7-7600U CPU @ 3.9GHz
       `/dMNmy+/:-------------:/yMMM   GPU: Mesa DRI Intel(R) HD Graphics 620 (Kaby Lake GT2) 
          ./ydNMMMMMMMMMMMMMMMMMMMMM   RAM: 5572MiB / 15918MiB
             \.MMMMMMMMMMMMMMMMMMM

Godoc version: Just installed this morning via go get (latest)
Godocdash version: Just installed this morning via go get (latest)

To reproduce:

$ godocdash --silent --name test
$ sqlite3 test.docset/Contents/Resources/docSet.dsidx
SQLite version 3.11.0 2016-02-15 17:29:24
Enter ".help" for usage hints.
sqlite> SELECT COUNT(*) FROM searchIndex;
1977
sqlite> SELECT DISTINCT type FROM searchIndex;
Package
Constant
Variable

wuudjac / godocdash

"Type" and "Function" definitions not being generated #4