Nimble is unable to download and install

[krakengore]

    $ nimble --verbose install polymorph
        Reading official package list
        Prompt: No local packages.json found, download it from internet? [y/N]
        Answer: y
    Downloading Official package list
         Trying https://github.com/nim-lang/packages/raw/master/packages.json
        Success Package list downloaded.
    Downloading https://github.com/rlipsc/polymorph using git
        Cloning latest tagged version: v0.3.1
    
    
    Run

it hangs at Cloning