Rails - Jun 2013 - Running RSpec tests, how can I resolve a “Curl::Err::OutOfMemoryError”?

Running an rspec test with ruby bindings for libcurl (with
curb<https://github.com/taf2/curb>)
like so:

it "Should return a certain user in a JSON array" do
  $var = Curl::Easy.new("some-url.com")
  $var.perform
  response = JSON.parse($var.body_str)
  response[''user''].should eq(''some user
name'')
end

and sometimes I get this error:

Failure/Error: $var.perform
 Curl::Err::OutOfMemoryError:
   Curl::Err::OutOfMemoryError

Anyone know how to resolve this? Thanks.

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