Error on install

Created by: joemcl

When doing install via zip download to my ~/ext directory,

cv dl com.example.osdi@https://github.com/FIXME/com.example.osdi/archive/master.zip

getting this error:

Error: API Call Failed: Array
(
    [entity] => Extension
    [action] => download
    [params] => Array
        (
            [key] => com.example.osdi
            [url] => https://github.com/FIXME/com.example.osdi/archive/master.zip
            [install] => 1
            [debug] => 1
            [version] => 3
        )

    [result] => Array
        (
            [is_error] => 1
            [error_message] => Download failed - ZIP file is unavailable or malformed
        )

)