Pkg.Registry.add w/ Julia 1.1

[colinxs]

This isn't an issue with HolyLabRegistry, but you seem to have the best handle of anyone I've seen on using non-General registries so I figured I'd ask here. Apologies in advance clogging up your repo! Feel free to close this issue.

Using your readme I was able to get my own registry (a private GH repo) working with Registrator + Travis. I'm curious about the verbose script you use to add the registry to Travis (if [[ -a .git/shallow ]]; then git fetch --unshallow; fi...). I figured with Julia 1.1 I would be able to just do using Pkg; Pkg.Registry.add(...) but that results in the following error:

$ julia --color=yes -e 'using Pkg; Pkg.Registry.add(RegistrySpec(url="[email protected]:colinxs/JuliaRegistry.git"))'
   Cloning registry from "[email protected]:colinxs/JuliaRegistry.git"
     Added registry `JuliaRegistry` to `~/.julia/registries/JuliaRegistry`
The command "julia --color=yes -e 'using Pkg; Pkg.Registry.add(RegistrySpec(url="git@github.com:colinxs/JuliaRegistry.git"))'" exited with 0.
2.90s$ julia --color=yes -e 'using Pkg; Pkg.activate(); Pkg.instantiate(); Pkg.test()'
  Updating registry at `~/.julia/registries/JuliaRegistry`
  Updating git-repo `[email protected]:colinxs/JuliaRegistry.git`
ERROR: AssertionError: haskey(hashes, uuid)
Stacktrace:
 [1] version_data!(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.1/Pkg/src/Operations.jl:426
 [2] #instantiate#67(::Nothing, ::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}, ::Function, ::Pkg.Types.Context) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.1/Pkg/src/API.jl:466
 [3] instantiate at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.1/Pkg/src/API.jl:442 [inlined]
 [4] #instantiate#66 at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.1/Pkg/src/API.jl:440 [inlined]
 [5] instantiate() at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.1/Pkg/src/API.jl:440
 [6] top-level scope at none:0
The command "julia --color=yes -e 'using Pkg; Pkg.activate(); Pkg.instantiate(); Pkg.test()'" exited with 1.

I tried looking into this but wasn't able to make heads or tails of what's going on and can't replicate the issue on a local machine. The lack of a helpful error message on which uuid is missing doesn't help either (related to JuliaLang/Pkg.jl#1172).

If you have any insight, I'm all ears!

Thanks in advance,
Colin