Avro Gem Broken??? Or I don't understand it?

Gemfile

source "https://rubygems.org"
gem "avro", "1.7.5"

Gemfile.lock

GEM
  remote: https://rubygems.org/
  specs:
    avro (1.7.5)
      yajl-ruby
    yajl-ruby (1.2.0)

PLATFORMS
  ruby

DEPENDENCIES
  avro (= 1.7.5)

members.avro

members.from_java_client.avro

output.txt

$ rvm use 2.1.1
Using /Users/michael.ries/.rvm/gems/ruby-2.1.1
$ ruby test.rb
~/.rvm/gems/ruby-2.1.1/gems/avro-1.7.5/lib/avro/io.rb:46:in `byte!': undefined method `unpack' for nil:NilClass (NoMethodError)
	from ~/.rvm/gems/ruby-2.1.1/gems/avro-1.7.5/lib/avro/io.rb:67:in `read_long'
	from ~/.rvm/gems/ruby-2.1.1/gems/avro-1.7.5/lib/avro/io.rb:301:in `read_data'
	from ~/.rvm/gems/ruby-2.1.1/gems/avro-1.7.5/lib/avro/io.rb:384:in `block in read_record'
	from ~/.rvm/gems/ruby-2.1.1/gems/avro-1.7.5/lib/avro/io.rb:382:in `each'
	from ~/.rvm/gems/ruby-2.1.1/gems/avro-1.7.5/lib/avro/io.rb:382:in `read_record'
	from ~/.rvm/gems/ruby-2.1.1/gems/avro-1.7.5/lib/avro/io.rb:310:in `read_data'
	from ~/.rvm/gems/ruby-2.1.1/gems/avro-1.7.5/lib/avro/io.rb:275:in `read'
	from ~/.rvm/gems/ruby-2.1.1/gems/avro-1.7.5/lib/avro/data_file.rb:243:in `block in each'
	from ~/.rvm/gems/ruby-2.1.1/gems/avro-1.7.5/lib/avro/data_file.rb:231:in `loop'
	from ~/.rvm/gems/ruby-2.1.1/gems/avro-1.7.5/lib/avro/data_file.rb:231:in `each'
	from test.rb:41:in `block in <main>'
	from ~/.rvm/gems/ruby-2.1.1/gems/avro-1.7.5/lib/avro/data_file.rb:45:in `open'
	from test.rb:40:in `<main>'
	
	
$ rvm use 2.0.0
Using /Users/michael.ries/.rvm/gems/ruby-2.0.0-p451
$ ruby test.rb
~/.rvm/gems/ruby-2.0.0-p451/gems/avro-1.7.5/lib/avro/io.rb:46:in `byte!': undefined method `unpack' for nil:NilClass (NoMethodError)
	from ~/.rvm/gems/ruby-2.0.0-p451/gems/avro-1.7.5/lib/avro/io.rb:67:in `read_long'
	from ~/.rvm/gems/ruby-2.0.0-p451/gems/avro-1.7.5/lib/avro/io.rb:301:in `read_data'
	from ~/.rvm/gems/ruby-2.0.0-p451/gems/avro-1.7.5/lib/avro/io.rb:384:in `block in read_record'
	from ~/.rvm/gems/ruby-2.0.0-p451/gems/avro-1.7.5/lib/avro/io.rb:382:in `each'
	from ~/.rvm/gems/ruby-2.0.0-p451/gems/avro-1.7.5/lib/avro/io.rb:382:in `read_record'
	from ~/.rvm/gems/ruby-2.0.0-p451/gems/avro-1.7.5/lib/avro/io.rb:310:in `read_data'
	from ~/.rvm/gems/ruby-2.0.0-p451/gems/avro-1.7.5/lib/avro/io.rb:275:in `read'
	from ~/.rvm/gems/ruby-2.0.0-p451/gems/avro-1.7.5/lib/avro/data_file.rb:243:in `block in each'
	from ~/.rvm/gems/ruby-2.0.0-p451/gems/avro-1.7.5/lib/avro/data_file.rb:231:in `loop'
	from ~/.rvm/gems/ruby-2.0.0-p451/gems/avro-1.7.5/lib/avro/data_file.rb:231:in `each'
	from test.rb:41:in `block in <main>'
	from ~/.rvm/gems/ruby-2.0.0-p451/gems/avro-1.7.5/lib/avro/data_file.rb:45:in `open'
	from test.rb:40:in `<main>'

test.rb

require 'bundler/setup'
require 'avro'

data = [
  {"guid"=>"144045de-eb44-dd1b-d9af-6c8b5d41a96e", "user_guid"=>"0cd41235-5c14-eae9-00ed-c6eb11dd9119", "name"=>"My Awesome Bank", "created_at"=>1390617818, "updated_at"=>1398180288, "deleted_at"=>nil},
  {"guid"=>"51e06057-14d2-7527-81fa-b07dba0a263b", "user_guid"=>"0cd41235-5c14-eae9-00ed-c6eb11dd9119", "name"=>"Student Loans R' Us", "created_at"=>1386178342, "updated_at"=>1398180286, "deleted_at"=>nil},
  {"guid"=>"b4d1d99f-4351-d0e7-221c-a3fae08716bc", "user_guid"=>"0cd41235-5c14-eae9-00ed-c6eb11dd9119", "name"=>"My Awesome Bank", "created_at"=>1390617026, "updated_at"=>1398180288, "deleted_at"=>nil},
  {"guid"=>"084638fa-a78d-bbdd-e075-7c9c957a9b46", "user_guid"=>"0cd41235-5c14-eae9-00ed-c6eb11dd9119", "name"=>"My Awesome Bank", "created_at"=>1390617138, "updated_at"=>1398180288, "deleted_at"=>nil},
  {"guid"=>"79287c76-4e8f-0a21-7569-a2bcdc2b2f4d", "user_guid"=>"0cd41235-5c14-eae9-00ed-c6eb11dd9119", "name"=>"My Awesome Bank", "created_at"=>1390617135, "updated_at"=>1398180288, "deleted_at"=>nil},
  {"guid"=>"3bcc26b2-7d3b-6c4d-cb27-4eb1574b3c20", "user_guid"=>"0cd41235-5c14-eae9-00ed-c6eb11dd9119", "name"=>"Cayman Islands Bank", "created_at"=>1386902345, "updated_at"=>1398180288, "deleted_at"=>nil},
  {"guid"=>"75e1e56c-7611-4030-d002-afa2af70e5a1", "user_guid"=>"0cd41235-5c14-eae9-00ed-c6eb11dd9119", "name"=>"My Awesome Bank", "created_at"=>1390617427, "updated_at"=>1398180288, "deleted_at"=>nil},
]

member_schema = <<-SCHEMA
{"namespace": "md.data_logs",
 "type": "record",
 "name": "Member",
 "fields": [
     {"name": "guid", "type": "string"},
     {"name": "user_guid", "type": "string"},
     {"name": "name", "type": ["string","null"]},
     {"name": "created_at", "type":"long"},
     {"name": "updated_at", "type":"long"},
     {"name": "deleted_at", "type":["long","null"]}
 ]
}
SCHEMA
filepath = "./members.avro"
File.unlink(filepath) if File.exists?(filepath)

Avro::DataFile.open(filepath, "w", member_schema) do |dw|
  data.each do |entry|
    dw << entry
  end
end


entries = []
Avro::DataFile.open(filepath, "r") do |reader|
  reader.each do |entry|
    entries << entry
  end
end

puts "Here is the data I wrote into the file:"
data.each{|e| p e }
print "\n\n\n\n"

puts "Here is the data I read from the file:"
entries.each{|e| p e }

test_read.rb

require 'bundler/setup'
require 'avro'

entries = []
Avro::DataFile.open("./members.from_java_client.avro", "r") do |reader|
  reader.each do |entry|
    entries << entry
  end
end

puts "Here is the data I read from the file:"
entries.each{|e| p e }

I'm getting this error on and off as well, it seems to be a problem with integers and long types. I tried to trace it to a specific range of values and I found that ints greater than 6 digits would throw the error. However I've been testing successfully with ints above 6 digits for some time so the error may not be consistent with this condition.