FourierFlows is registered and merged to METADATA but still cannot Pkg.add

[navidcy]

I have committed the first tagged version for FourierFlows.jl #12685 and it was merged 2 days ago.
I still though cannot do Pkg.add("FourierFlows"). Why is that?
With a brand new julia installation I get:

julia> Pkg.init()
INFO: Initializing package repository /Users/navid/.julia/v0.6
INFO: Cloning METADATA from https://github.com/JuliaLang/METADATA.jl

julia> Pkg.add("FourierFlows")
INFO: Cloning cache of BinDeps from https://github.com/JuliaLang/BinDeps.jl.git
INFO: Cloning cache of BufferedStreams from https://github.com/BioJulia/BufferedStreams.jl.git
INFO: Cloning cache of Compat from https://github.com/JuliaLang/Compat.jl.git
INFO: Cloning cache of DataStructures from https://github.com/JuliaCollections/DataStructures.jl.git
INFO: Cloning cache of FileIO from https://github.com/JuliaIO/FileIO.jl.git
INFO: Cloning cache of FourierFlows from https://github.com/FourierFlows/FourierFlows.jl.git

and it sticks there at the cloning FourierFlows message...

[navidcy]

Any help perhaps? Is this the most relevant place I should be asking about this issue?

[navidcy]

Update:
Running

Pkg.add("FourierFlows")

works on linux machines but it does not work on mac os x.

Specifically, it works on:

Julia Version 0.6.2
Commit d386e40 (2017-12-13 18:08 UTC)
Platform Info:
  OS: Linux (x86_64-redhat-linux)
  CPU: Intel(R) Xeon(R) CPU E5-2620 v3 @ 2.40GHz
  WORD_SIZE: 64
  BLAS: libopenblas (DYNAMIC_ARCH Haswell)
  LAPACK: libopenblasp.so.0
  LIBM: libopenlibm
  LLVM: libLLVM-3.9.1 (ORCJIT, haswell)

but does not work on:

Julia Version 0.6.2
Commit d386e40c17 (2017-12-13 18:08 UTC)
Platform Info:
  OS: macOS (x86_64-apple-darwin17.3.0)
  CPU: Intel(R) Core(TM) i7-4980HQ CPU @ 2.80GHz
  WORD_SIZE: 64
  BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Haswell)
  LAPACK: libopenblas64_
  LIBM: libopenlibm
  LLVM: libLLVM-3.9.1 (ORCJIT, haswell)